Your Conditions. Your Tools. Personalized.
Set up the chronic conditions you live with and Leo unlocks specialized tracking tools, validated symptom scales, and correlation insights tailored to your health journey.
16 conditions supported. Multiple conditions tracked simultaneously. One app.
Download FreeHow It Works
Three steps to a health toolkit built around your specific conditions — not generic features you'll never use
Select Your Conditions
Choose from built-in condition packs or create a custom profile. Each pack includes curated symptoms, known triggers, episode templates, and food sensitivities — all designed with clinical input and patient feedback.
Pre-built packs for 16 conditions with validated symptom scales
Add multiple conditions — most chronic illness patients have 2-3+
Custom condition builder — drag-and-drop sections for rare or unlisted conditions with starter presets
Set Up Your Conditions
Select all conditions you manage
Your Health Hub
POTS Dashboard
Hydration & symptoms
Fluid & Sodium
2.1L / 3L today
GI Stimulator
Settings & GCSI
Attack Timer
Phase-by-phase log
Lab Tracking
A1C, CBC, thyroid & more
ER Card
All conditions
Get Your Personalized Tools
Your Health Hub transforms based on your conditions. Only the tools you need appear — no clutter, no irrelevant features. Add or remove a condition and your toolkit updates instantly.
POTS unlocks Fluid Tracker, HR Overlay, Exercise Protocols, Brain Fog Tracker
Gastroparesis unlocks GI Stimulator, GCSI Diary, ER Card
Migraine unlocks Attack Timer, Aura Logger, MIDAS Scoring
Lab tracking with condition-specific panels, personal target ranges, and trend charts
Each condition adds its own cards — they all appear in one scrollable view
Track, Correlate & Share
Log symptoms, triggers, and treatments daily. Leo's correlation engine finds patterns across all your conditions and builds doctor-ready reports automatically. The connections it reveals — like how your sleep quality correlates with both POTS severity and migraine frequency — are patterns you'd never spot manually.
Cross-condition correlation: see how one condition flare triggers another
Apple Watch passive data fills in vitals, sleep, and activity automatically
Doctor-ready PDF reports with drag-and-drop section builder
Gamification keeps you consistent — XP, streaks, and badges for daily tracking
Cross-Condition Insights
POTS flares precede GI symptoms
In 78% of your gastroparesis flares, your standing HR was elevated the day before. Consider extra fluids on high-HR days.
Sleep under 6hrs triggers attacks
You're 3.2x more likely to have a migraine after nights with less than 6 hours of sleep.
Barometric drops affect everything
When barometric pressure drops >5 hPa, your POTS, gastroparesis, and migraine all flare within 24hrs.
Supported Conditions
Each condition pack includes curated symptoms, known triggers, episode templates, and condition-specific tracking tools
Gastroparesis
Available NowTrack gastric electrical stimulator (GES) settings, log daily symptoms using the validated GCSI scale (Gastroparesis Cardinal Symptom Index), correlate trends with device adjustments, and carry an offline ER card with your device information for emergency visits.
Gastroparesis — delayed gastric emptying — affects an estimated 5 million Americans and is commonly associated with diabetes, post-surgical complications, and idiopathic causes. Many patients rely on a gastric electrical stimulator (like the Enterra system) to manage chronic nausea and vomiting. Leo provides the most comprehensive gastroparesis management toolkit available.
Tracked Symptoms
Common Triggers
Included Tools (5)
GI Stimulator Tracker
Track device settings, battery life, and stimulation parameters for Enterra I/II and other GES devices
GCSI Symptom Diary
Validated clinical scale with 3 subscales (nausea/vomiting, fullness/satiety, bloating) scored 0-5
ER Quick-Share Card
Offline emergency card with device model, serial number, MRI compatibility, and doctor contact info
Device Adjustment History
Log every stimulator adjustment with before/after symptom comparison and trend charts
Lab Tracking
Track CBC, CMP, iron, vitamin D, B12/folate, A1C, and liver panels with personal target ranges and trend charts
POTS / Dysautonomia
Available NowFluid & sodium tracking with POTS supplement presets, Levine/CHOP exercise reconditioning protocols, brain fog tracking, compression garment logging, and doctor-ready reports for Postural Orthostatic Tachycardia Syndrome.
POTS (Postural Orthostatic Tachycardia Syndrome) is a form of dysautonomia affecting 1-3 million Americans, characterized by a heart rate increase of 30+ bpm upon standing. Patients see an average of 7+ doctors before diagnosis. Leo provides a comprehensive POTS toolkit with fluid & sodium tracking, exercise reconditioning protocols, and doctor-ready reports.
Tracked Symptoms
Common Triggers
Included Tools (8)
Fluid & Sodium Tracker
Quick-log with pre-loaded POTS supplement presets (Vitassium, NormaLyte, LMNT, Liquid IV) and daily goals
Exercise Reconditioning
Built-in Levine (Dallas) and CHOP protocols with flexible bad-day scheduling and HR zone targets
HR Position Overlay
See heart rate tagged by position (lying/sitting/standing) throughout the day from Apple Watch
Brain Fog Tracker
Cognitive-symptom logging correlated with triggers like dehydration and poor sleep
Dysautonomia ER Card
Offline emergency card explaining POTS to ER staff with meds, subtype, and do/don't instructions
POTS Report Card
Doctor-ready PDF with symptom trends, med response, fluid compliance, and exercise progress
Compression Garment Logger
Track garment type, hours worn, and correlate with symptom severity throughout the day
Lab Tracking
Track CBC, CMP, thyroid, iron, and inflammatory panels with personal target ranges and trend charts
Migraine / Headache
Available NowTrack migraine episodes with aura classification (visual, sensory, motor), pain intensity and location mapping, trigger identification with weather and hormonal correlation, and rescue medication effectiveness over time.
Migraine affects approximately 39 million Americans and is the 3rd most prevalent illness globally. Episodes involve far more than headache pain — aura phases, prodrome symptoms, photophobia, phonophobia, and postdrome recovery can span days. Leo helps patients identify their unique trigger patterns and measure which treatments actually work.
Tracked Symptoms
Common Triggers
Included Tools (9)
Attack Phase Timer
Phase-by-phase logging from prodrome through postdrome with automatic duration tracking
Aura Visual Logger
Classify aura type (scintillating scotoma, visual snow, tingling, speech difficulty) with duration tracking
Trigger Correlation Engine
Correlation with weather/barometric data, sleep, food, stress, hormonal cycle, and screen time
Barometric Pressure Tracking
Automatic local weather integration with pressure overlay on attack history
Medication Effectiveness
Track both preventive and acute medications with per-attack effectiveness ratings
MIDAS Disability Assessment
Built-in MIDAS score auto-calculated from logged data to qualify for treatment escalation
Migraine Report Card
Doctor-ready PDF with frequency, duration, medication response, trigger analysis, and MIDAS trends
Photosensitivity Logger
Track light sensitivity levels and correlate with screen time, outdoor exposure, and fluorescent lighting
Lab Tracking
Track inflammatory markers, thyroid, and CMP panels with personal target ranges and trend charts
Epilepsy / Seizure Disorder
Available NowSeizure diary with type classification (focal, generalized, absence, myoclonic, atonic), seizure-free day counter, rescue medication protocol with caregiver instructions, trigger analysis, and neurologist-ready reports.
Epilepsy affects 3.4 million Americans — 1 in 26 people will develop epilepsy in their lifetime. With over 40 seizure types ranging from brief staring spells to convulsions, accurate tracking is critical for medication management. Leo helps you build a detailed seizure diary so your neurologist has the data they need.
Tracked Symptoms
Common Triggers
Included Tools (9)
Seizure Diary
One-tap seizure logging with type classification, duration timer, consciousness level, and post-ictal recovery time
Seizure-Free Day Counter
Prominent streak counter showing consecutive seizure-free days with monthly frequency charts and personal bests
Medication Adherence Tracker
Reminders with escalation (phone to watch to caregiver alert) for narrow-therapeutic-index drugs
Rescue Medication Protocol
Step-by-step caregiver instructions with timer for emergency meds (diastat, nasal midazolam) and 911 guidance
Trigger Analysis
Correlate seizures with sleep, stress, medication adherence, menstrual cycle, and photosensitivity patterns
Emergency Seizure Card
Offline card with seizure type, frequency, medications, first aid instructions for bystanders, and 911 criteria
Neurologist Report Card
Seizure frequency charts, type distribution, medication timeline, and seizure-free streaks for epileptologist review
Safety & Independence Planner
Track driving eligibility (state seizure-free requirements), swimming safety, workplace accommodations, and milestones
Lab Tracking
Track CBC, CMP, and liver panels for anti-seizure medication monitoring with personal target ranges
Endometriosis & Adenomyosis
Available NowDaily endo check-in with 15 condition-specific symptoms, pain-to-cycle-day correlation, hormonal treatment tracking with effectiveness ratings, procedure logs with rASRM staging, imaging result documentation, and flare-up pattern analysis.
Endometriosis affects 190 million people worldwide — roughly 1 in 10 women of reproductive age — with an average diagnosis delay of 7-10 years. Adenomyosis co-occurs in 20-80% of cases. Symptoms span pelvic pain, GI involvement, bladder issues, fatigue, and infertility. Leo provides purpose-built tracking that goes far beyond period trackers.
Tracked Symptoms
Common Triggers
Included Tools (9)
Daily Endo Check-In
Quick daily pain level (1-10) + 15 endo/adeno-specific symptoms with per-symptom severity, auto-tagged to cycle day
Cycle & Flow Correlation
Pain and symptom overlay on cycle calendar showing which cycle days are consistently worst
Hormonal Treatment Tracker
Track all endo treatments (pills, IUD, GnRH agonists/antagonists, dienogest) with effectiveness ratings and side effects
Procedure & Surgery Log
Document laparoscopy, excision, ablation with rASRM staging (I-IV), anatomical locations, and pathology results
Imaging Result Tracker
Log ultrasound, MRI findings including endometriomas, adenomyosis markers, and adhesions with report upload
Flare-Up Timeline
Track flare start/end, severity, symptoms, triggers, and identify cycle-day clustering patterns
Bowel & Bladder Tracker
Dedicated GI and urinary symptom tracking correlated with cycle day for deep infiltrating endo
Endo Report Card
Doctor-ready PDF with pain trends, symptom heatmap, treatment response, procedure timeline, and flare patterns
Lab Tracking
Track CBC, hormone panels, inflammatory markers, and iron studies with personal target ranges and trend charts
IBS / GI Disorders
Available NowTrack GI symptoms with the Bristol Stool Scale, map abdominal pain by region, identify FODMAP triggers with a built-in food database, and correlate meal timing with symptom onset for IBS-C, IBS-D, and IBS-M subtypes.
Irritable Bowel Syndrome affects 25-45 million Americans and is one of the most common functional GI disorders. The relationship between food, stress, and symptoms is highly individual — what triggers one patient may be fine for another. Leo helps you discover your unique pattern through systematic food-symptom tracking with FODMAP awareness.
Tracked Symptoms
Common Triggers
Included Tools (5)
Gut Diary
Daily GI symptom log with severity tracking, stool frequency, and pain location mapping
FODMAP Tracker
Built-in FODMAP food database for tracking high/low FODMAP intake during elimination and reintroduction phases
Bristol Scale Logger
Quick visual stool form tracking using the validated Bristol Stool Scale (Types 1-7)
Food Reaction Log
Meal logging with timed symptom onset tracking — see exactly which meals trigger which symptoms
Lab Tracking
Track CBC, CMP, inflammatory markers, and thyroid panels with personal target ranges and trend charts
Fibromyalgia / Chronic Pain
Available NowInteractive body pain map with front/back anatomical view, daily fatigue and energy tracking, automatic weather and barometric pressure correlation, sleep quality impact analysis, and cognitive symptom monitoring for fibro fog.
Fibromyalgia affects approximately 10 million Americans with widespread musculoskeletal pain, fatigue, sleep disturbance, and cognitive difficulties. Symptoms fluctuate with weather, activity levels, stress, and sleep quality. Leo's interactive body map lets you pinpoint pain locations and severity, while automatic weather tracking reveals environmental patterns.
Tracked Symptoms
Common Triggers
Included Tools (5)
Pain Map
Interactive front/back body map with anatomical sub-regions, severity tracking (1-10), and pain type classification
Fatigue Tracker
Daily energy level tracking with activity-fatigue correlation and post-exertional malaise detection
Weather Correlations
Automatic barometric pressure and temperature tracking correlated with symptom flares
Cognitive Symptom Log
Track fibro fog severity, concentration levels, and memory issues alongside sleep quality data
Lab Tracking
Track CBC, CMP, thyroid, vitamin D, inflammatory markers, and B12/folate panels with personal target ranges
Anxiety / Panic Disorder
Available NowTimed panic attack logger with Apple Watch heart rate overlay, avoidance behavior pattern tracking, coping strategy effectiveness scoring, and breathing exercise integration to help manage acute episodes and long-term recovery.
Anxiety disorders affect 40 million American adults. Panic disorder — characterized by sudden, intense fear with physical symptoms like racing heart, chest tightness, and shortness of breath — can be debilitating. Tracking episodes reveals patterns that therapy and medication can target. Leo helps you see that panic attacks, while terrifying, follow patterns that can be understood and managed.
Tracked Symptoms
Common Triggers
Included Tools (5)
Panic Attack Timer
Start a timer when an attack begins, log intensity over time, and see that attacks peak and pass
Heart Rate Overlay
Overlay Apple Watch heart rate data during panic episodes to separate physical from perceived symptoms
Avoidance Tracker
Track places, situations, and activities you're avoiding — and gradually work on exposure with your therapist
Coping Strategy Log
Rate the effectiveness of breathing exercises, grounding techniques, and other coping strategies over time
Lab Tracking
Track thyroid, CBC, CMP, B12/folate, and vitamin D panels with personal target ranges and trend charts
Diabetes
Available NowGlucose tracking, carb/meal logging, A1C history with estimated average glucose, and time-in-range analytics — personalized for Type 1, Type 2, and Gestational diabetes. CGM integration coming soon.
Diabetes affects 37 million Americans and is the 7th leading cause of death. Managing blood glucose requires constant vigilance — meals, medications, exercise, and stress all affect levels. Leo tracks glucose readings, carbs and meals alongside your levels, and monitors A1C trends over time so you and your endocrinologist can see what's working. CGM integration via HealthKit is in progress.
Tracked Symptoms
Common Triggers
Included Tools (7)
Glucose Dashboard
Track glucose readings with color-coded status and time-in-range progress. CGM integration via HealthKit coming soon.
Carb & Meal Logger
Quick meal logging with carb count, food description, and pre-meal glucose tracking
A1C Tracker
A1C history with color-coded values, estimated average glucose (eAG), and mini trend chart across lab visits
Medication Tracker
Today's dose adherence, oral med tracking, with NFC sticker support
Glucose Trend Charts
24-hour and 7-day glucose trend charts with target range bands (70-180) and out-of-range highlighting
Diabetes Health ID Card
Offline emergency card with diabetes type, medications, latest A1C, and glucagon instructions for bystanders
Lab Tracking
Track A1C/glucose, ketones, lipid, kidney, thyroid, and CMP panels with personal target ranges and trend charts
PTSD
Available NowEpisode logging with severity ratings, trigger awareness tracking, built-in grounding and breathing exercises, coping strategy effectiveness scoring, and lab tracking for PTSD-related markers.
PTSD affects approximately 12 million American adults in a given year. Tracking episodes, triggers, and coping strategies between therapy sessions helps your care team understand your patterns and adjust treatment. Leo provides purpose-built tools for PTSD data collection — not generic meditation.
Tracked Symptoms
Common Triggers
Included Tools (5)
Episode Logger
Log PTSD episodes with severity rating, triggers, and freeform notes
Trigger Awareness
See your top triggers ranked by frequency with progress visualization
Grounding Exercise
Built-in 5-4-3-2-1 sensory grounding technique for in-the-moment support
Coping Strategy Tracker
Rate the effectiveness of coping strategies and build a personalized toolkit
Lab Tracking
Track cortisol, thyroid, vitamin D, and other markers your care team monitors
Depression
Available NowMood pattern logging, energy and anhedonia tracking, sleep and appetite change monitoring, coping strategy effectiveness scoring, and symptom-free streak tracking to share with your care team.
Major depressive disorder affects over 21 million American adults. Tracking mood patterns, energy levels, and daily functioning between sessions gives your therapist or psychiatrist the data they need to adjust treatment. Leo helps you see patterns that are hard to recall from memory alone.
Tracked Symptoms
Common Triggers
Included Tools (5)
Mood Pattern Logger
Daily mood tracking with severity and context for your care team
Energy Tracker
Track energy levels and anhedonia alongside activities and sleep
Symptom-Free Streaks
Track consecutive good days to see progress over time
Coping Tools
Built-in breathing exercises and coping strategy effectiveness tracking
Lab Tracking
Track thyroid, vitamin D, B12, and other panels your care team monitors
OCD
Available NowUrge tracking with resistance scoring, compulsion logging by type (checking, contamination, counting, ordering), intrusive thought logging, ritual fatigue monitoring, and trigger pattern analysis.
OCD affects approximately 2.5 million American adults. Tracking urges, compulsions, and their triggers between therapy sessions helps your care team calibrate exposure and response prevention (ERP) treatment. Leo provides structured logging that captures the data therapists need.
Tracked Symptoms
Common Triggers
Included Tools (5)
Urge Tracker
Log compulsive urges with intensity rating and resistance scoring
Episode Type Breakdown
Categorize episodes by type — checking, contamination, counting, ordering, reassurance
Trigger Analysis
See your top OCD triggers ranked by frequency
Coping Strategy Tracker
Rate effectiveness of coping strategies and ERP exercises
Lab Tracking
Track thyroid, CBC, and other panels your care team monitors
ADHD
Available NowFocus pattern logging, medication effectiveness tracking, restlessness and impulsivity monitoring, time blindness awareness, emotional dysregulation tracking, and sensory overwhelm trigger analysis.
ADHD affects approximately 8.7 million American adults. Tracking focus patterns, medication effectiveness, and daily functioning helps your care team optimize treatment. Leo captures the data that's hard to recall in a 15-minute appointment.
Tracked Symptoms
Common Triggers
Included Tools (5)
Focus Pattern Logger
Track focus quality throughout the day with context and medication timing
Medication Effectiveness
Rate how well ADHD medication is working day-by-day
Trigger Awareness
See your top overwhelm and distraction triggers ranked by frequency
Coping Strategy Tracker
Rate effectiveness of coping strategies and accommodations
Lab Tracking
Track CBC, CMP, thyroid, and other panels your care team monitors
Chiari Malformation
Available NowPositional episode tracking with Valsalva trigger identification, neurological symptom monitoring (numbness, balance, dysphagia, tinnitus, vision), barometric sensitivity correlation, and sleep apnea symptom logging.
Chiari malformation affects an estimated 1 in 1,000 people, though many go undiagnosed. Symptoms are triggered by positions and Valsalva maneuvers (coughing, straining, laughing) and can include severe occipital headaches, neurological deficits, and sleep apnea. Leo helps you track the specific patterns your neurosurgeon needs to see.
Tracked Symptoms
Common Triggers
Included Tools (5)
Episode Logger
Log Valsalva headaches, neurological flares, and positional episodes with severity and duration
Positional Triggers
Track which positions and Valsalva maneuvers trigger your symptoms
Neurological Symptoms
Monitor numbness, balance, dysphagia, tinnitus, vision, and proprioception changes
Barometric Tracking
Correlate barometric pressure changes with symptom flares
Lab Tracking
Track inflammatory markers, vitamin D, and other panels your neurosurgeon monitors
Crohn's Disease
Available NowHarvey-Bradshaw Index (HBI) daily scoring with trend charts, bowel movement logging with Bristol Stool Scale, extra-intestinal symptom tracking (joint pain, mouth sores, fever), and food trigger correlation.
Crohn's disease affects approximately 780,000 Americans. As an inflammatory bowel disease, it requires careful monitoring of GI symptoms, bowel habits, and extra-intestinal manifestations. Leo provides the validated HBI scoring scale alongside detailed bowel and symptom logging for your gastroenterologist.
Tracked Symptoms
Common Triggers
Included Tools (5)
HBI Symptom Diary
Daily Harvey-Bradshaw Index scoring with automated subscale calculation and trend charts
Bowel Movement Logger
Quick-log bowel movements with Bristol Stool Scale, blood presence, and urgency rating
Extra-Intestinal Tracker
Monitor joint pain, mouth sores, fever, perianal pain, and other extra-intestinal symptoms
Food Trigger Log
Track food reactions and correlate meals with symptom flares
Lab Tracking
Track CBC, CMP, CRP, ESR, calprotectin, iron studies, and vitamin panels with trend charts
ME/CFS
Available NowPEM crash diary with 72-hour trigger lookback, activity logging by exertion type and intensity, energy envelope pacing, fluid & electrolyte tracking, active crash banner with timer, and personalized trigger pattern insights.
Myalgic Encephalomyelitis / Chronic Fatigue Syndrome affects 1.3 million Americans with profound fatigue, post-exertional malaise (PEM), cognitive dysfunction, and unrefreshing sleep. PEM -- a disproportionate worsening of symptoms after exertion -- can be delayed by 24-72 hours, making trigger identification nearly impossible without systematic tracking. Leo's 72-hour lookback engine changes that.
Tracked Symptoms
Common Triggers
Included Tools (8)
PEM Crash Diary
Log PEM episodes with severity (1-10), onset type (immediate/delayed/next-day), symptom tags, duration, and auto-linked triggers via 72-hour lookback
Activity Logger
Log physical, cognitive, social, and emotional activities with 1-5 intensity levels and exertion type classification
72h Trigger Lookback
On PEM crash, scans all activities from previous 72 hours and highlights likely triggers based on personal crash history
Energy Envelope
Visualize daily energy budget vs actual exertion across cognitive, physical, and emotional categories
Fluid & Electrolyte Tracker
Progress rings for water (mL), sodium (mg), potassium (mg) with supplement presets
Active Crash Banner
Persistent banner showing severity, duration, and symptoms during active PEM crash with rest reminder
Trigger Pattern Insights
Which exertion types most frequently precede crashes, with average delay times and intensity thresholds
Lab Tracking
Track CBC, CMP, thyroid, cortisol, inflammatory markers with personal target ranges and trend charts
Ehlers-Danlos Syndrome (hEDS)
Available NowJoint subluxation/dislocation logging by body part, multi-system symptom monitoring (joint, muscle, TMJ, neurological, skin), and MCAS/dysautonomia symptom tracking.
Hypermobile EDS is the most common form of Ehlers-Danlos Syndrome, affecting an estimated 1 in 5,000 people. EDS is a multi-system condition impacting joints, muscles, skin, GI tract, and autonomic nervous system — often co-occurring with POTS and MCAS. Leo tracks the full spectrum so your care team sees the complete picture.
Tracked Symptoms
Common Triggers
Included Tools (4)
Subluxation Logger
Log joint subluxations and dislocations by body part with frequency and recovery tracking
Multi-System Symptoms
Track joint, muscle, TMJ, neurological, and skin symptoms in one place
MCAS & Dysautonomia
Monitor mast cell activation and dysautonomia symptoms alongside EDS data
Lab Tracking
Track CBC, CMP, tryptase, inflammatory markers, and vitamin panels
New Daily Persistent Headache (NDPH)
Coming SoonDaily severity tracking with baseline vs flare comparison, medication effectiveness scoring, trigger correlation analysis, and doctor-ready reports for a condition that's often misdiagnosed and poorly understood.
New Daily Persistent Headache is a chronic daily headache that begins abruptly — most patients can pinpoint the exact date it started — and never goes away. Often triggered by a viral illness, stressful event, or surgery, NDPH affects an estimated 0.03-0.1% of the population. With no FDA-approved treatment, tracking severity patterns, medication responses, and triggers is essential for finding what works for you.
Tracked Symptoms
Common Triggers
Planned Tools (6)
Daily Severity Logger
Track your baseline headache severity daily with quick 1-10 scoring and pain quality descriptors
Flare Detection
Automatically identify flares above your personal baseline with duration and severity tracking
Medication Effectiveness
Rate how well each preventive and rescue medication works, track response over time
Trigger Correlation
Statistical analysis of weather, sleep, stress, and other factors against your headache severity
Barometric Pressure Tracking
Auto weather data with pressure, temperature, and humidity overlaid on your headache diary
Lab Tracking
Track CBC, CMP, inflammatory markers, thyroid, vitamin D, B12/folate, and iron panels
PCOS
Available NowTrack irregular cycles, blood sugar, weight, hair changes and mood together — with a photo-free hair log and pinned hormone labs.
PCOS is a whole-body syndrome spanning reproductive, metabolic and dermatologic systems. Leo composes your cycle, glucose, weight and mood tracking with one net-new tracker — a hair log — into a single hub.
Tracked Symptoms
Common Triggers
Included Tools (4)
Hair Change Log
Thinning, shedding, excess growth or regrowth by area on a 0–10 scale — no photos
Cycle + Glucose + Weight
Reuses your cycle, blood-sugar and weight tracking in one view
Pattern Engine
Descriptive patterns across hair severity, glucose and cycle phase
Lab Tracking
Pinned glucose/A1C, hormone, lipid and thyroid panels with trends
PMDD
Available NowMap every mood and symptom log to its cycle phase, with in-the-moment coping tools and pinned hormone labs.
PMDD symptoms cluster in the luteal phase and lift after menstruation. Leo charts mood by cycle phase so the pattern becomes something you can see and show your clinician.
Tracked Symptoms
Common Triggers
Included Tools (4)
Mood by Cycle Phase
Average mood per phase over the last 90 days
Cycle-tagged logs
Every entry carries the cycle phase it happened in
Coping Tools
Breathing and grounding, one tap from the hub
Lab Tracking
Pinned hormone, thyroid and inflammatory panels
FND
Available NowSort episodes into motor, movement, seizure-type, sensory and balance categories, with trigger insight and coping tools.
Functional neurological disorder presents in many forms. Leo categorizes every episode, charts a five-week trend, and surfaces the trigger that most often precedes them.
Tracked Symptoms
Common Triggers
Included Tools (4)
5-Category Breakdown
Motor, movement, seizure-type, sensory and balance
Trigger Insight
The top co-occurring trigger for your episodes (descriptive)
Coping Tools
Grounding 5-4-3-2-1 and box breathing
Lab Tracking
Pinned CBC, CMP, thyroid, B12/folate, vitamin D, inflammatory
Dysautonomia
Available NowHeart rate, blood pressure, hydration, cycle and symptoms on one screen, with one-tap pre-syncope and syncope logging.
Dysautonomia scatters its signals across systems. Leo brings vitals, hydration, cycle and symptoms together, with red-flag buttons for the fainting moments.
Tracked Symptoms
Common Triggers
Included Tools (4)
Vital Snapshot
HR, BP and temp with a 10-reading HR trend
Hydration Tracker
Fluids toward a daily goal with a progress ring
Syncope Red-Flags
One-tap pre-syncope and syncope logging
Lab Tracking
Pinned CBC, CMP, thyroid, iron, inflammatory, vitamin D, B12/folate, hormone
Narcolepsy
Available NowA structured cataplexy log, sleep-attack counts kept separate from flares, and last night's sleep.
Narcolepsy's cataplexy and sleep attacks are distinct events worth logging precisely. Leo gives cataplexy its own structured tracker and keeps sleep attacks separate from flares.
Tracked Symptoms
Common Triggers
Included Tools (4)
Cataplexy Episode Log
Trigger emotion, partial/full collapse, body parts and duration
Sleep-Attack Count
Weekly count kept separate from flares
Last-Night Sleep
Pulled from your existing sleep records
Lab Tracking
Pinned CBC, CMP, thyroid, iron, vitamin D
Idiopathic Hypersomnia
Available NowTrack sleep inertia, naps and last night's sleep — the burden that's hard to describe, as data.
IH is unrefreshing sleep and severe morning grogginess. Leo counts the inertia and naps and keeps last night's sleep in view, reusing your existing sleep tracking.
Tracked Symptoms
Common Triggers
Included Tools (4)
Sleep-Inertia Tracker
Recent groggy-on-waking entries with 0–10 severity
Nap Counter
Short sleeps counted with total nap time
Last-Night Sleep
Sleep and time in bed from your records
Lab Tracking
Pinned CBC, CMP, thyroid, iron, B12/folate, vitamin D
Sleep Apnea
Available NowLast night's sleep, morning headaches, and your CPAP/BiPAP hours and AHI kept with your sleep entry — no device sync.
Sleep apnea shows up the next morning. Leo keeps last night's sleep, morning-headache trends, and your machine numbers together — honestly note-based, not a device integration.
Tracked Symptoms
Common Triggers
Included Tools (4)
CPAP / BiPAP Notes
Hours and AHI typed on your sleep entry surface on the hub — no device sync
Morning-Headache Count
Mornings this week you woke with a headache
Last-Night Sleep
Pulled from your sleep records
Lab Tracking
Pinned CBC, CMP, thyroid, lipid
MCAS
Available NowReactions by severity tier and body system, food vs environmental trigger analysis, and a food-safety profile.
Mast cell reactions hit many systems at many intensities. Leo sorts each reaction by severity tier and body system, splits food from environmental triggers, and pairs with a food diary.
Tracked Symptoms
Common Triggers
Included Tools (4)
Reaction Severity Tiers
Mild, moderate, severe and anaphylactic
Body-System Breakdown
Skin, GI, respiratory, neuro and cardiovascular
Food Diary + Safety Profile
Post-meal follow-up and your high-risk / watch-list foods
Lab Tracking
Pinned CBC, CMP, inflammatory, iron, liver, vitamin D
Lupus
Available NowDisease activity across organ systems, a kidney and photosensitivity watch, and flare patterns with triggers.
Lupus moves between skin, joints, kidneys, blood and brain. Leo tracks activity across those systems and keeps an eye on the renal and UV signals patients watch.
Tracked Symptoms
Common Triggers
Included Tools (4)
Disease Activity
7-day organ systems, symptoms and average severity
Kidney & Photosensitivity Watch
Edema/foamy-urine and sun-triggered reactions
Flare Patterns
Four-week chart with your top triggers
Lab Tracking
Pinned CBC, CMP, inflammatory, kidney, urinalysis, iron, vitamin D
Arthritis
Available NowMorning-stiffness tracking, a joint-involvement map, and weather plus functional impact.
Inflammatory and osteoarthritis turn on stiffness, swelling and the weather. Leo quantifies morning stiffness, which joints are involved, and the day-to-day cost.
Tracked Symptoms
Common Triggers
Included Tools (4)
Morning-Stiffness Logger
Duration and joints, with frequency and severity over time
Joint-Involvement Map
Pain, swelling, stiffness, warmth, grip, ROM and crepitus
Weather + Functional Impact
Weather-day severity and sleep/walking/grip effects
Lab Tracking
Pinned CBC, CMP, inflammatory, liver, kidney, vitamin D
Lyme Disease
Available NowA photo-free tick-exposure register, an EM-rash log, and symptoms and flares over time.
Lyme starts with an exposure worth recording and a long, waxing-and-waning tail. Leo documents the whole arc — from the bite to the months after.
Tracked Symptoms
Common Triggers
Included Tools (4)
Tick-Exposure Register
Date, body location, attached time and sent-for-testing — no photos
EM-Rash Log
Location and size category, photo-free
Symptoms & Flares
16-symptom set plus flare logging
Lab Tracking
Pinned CBC, CMP, inflammatory, vitamin D
CRPS / RSD
Available NowA photo-free limb check that captures pain and side-to-side asymmetry, with a pain trend over time.
CRPS is asymmetric and limb-focused. Leo records the affected side against the other — pain, temperature, color, swelling and touch-sensitivity — as structured pickers.
Tracked Symptoms
Common Triggers
Included Tools (4)
Limb Check
Pain, temperature, color, swelling and touch-sensitivity vs the other side
Pain Trend
0–10 pain across your recent checks
Meds · Flares · Sleep
Links to the trackers that round out the picture
Lab Tracking
Pinned CBC, CMP, inflammatory, vitamin D, thyroid
Gastritis
Available NowSymptom, trigger and flare logging with episode templates, plus the labs a work-up runs.
Gastritis lives by triggers — NSAIDs, alcohol, spicy and acidic foods, meal timing. Leo tracks it through its flexible shared symptom, trigger and flare logging.
Tracked Symptoms
Common Triggers
Included Tools (4)
Symptom + Trigger Logging
Severity plus trigger tags
Flare Templates
Flare, post-meal and empty-stomach episodes
Body Map + Duration
Relevant zone and days-since-onset
Lab Tracking
Pinned CBC, CMP, iron, B12/folate, inflammatory
MALS
Available NowA focused dashboard that surfaces post-meal pain and fear-of-eating trends, with the labs a work-up runs.
Median arcuate ligament syndrome turns eating into something you brace for. Leo's hub is a curated view over your symptom logs that counts the meal-to-pain pattern.
Tracked Symptoms
Common Triggers
Included Tools (4)
Post-Meal Pain Trend
How often belly pain after eating shows up (30 days)
Fear-of-Eating Trend
Food avoidance counted over time
Symptoms & Flares
9-symptom set plus flare logging
Lab Tracking
Pinned CBC, CMP, iron, vitamin D, liver
SMAS
Available NowA focused dashboard for vomiting episodes and position relief, with the nutrition labs a work-up runs.
Superior mesenteric artery syndrome makes eating and even posture fraught. Leo's hub counts vomiting episodes and the positions that bring relief.
Tracked Symptoms
Common Triggers
Included Tools (4)
Vomiting-Episode Trend
After-eating and bilious vomiting counted (30 days)
Position-Relief Trend
How often prone/knee-chest position helped
Symptoms & Flares
8-symptom set plus flare logging
Lab Tracking
Pinned CBC, CMP, iron, B12/folate, vitamin D
Nutcracker Syndrome
Available NowA focused dashboard for hematuria episodes and positional triggers, with relevant kidney labs.
Nutcracker syndrome brings left flank pain and blood in the urine that often track with standing and walking. Leo's hub counts both over time.
Tracked Symptoms
Common Triggers
Included Tools (4)
Hematuria-Episode Trend
Blood-in-urine counted over 30 days
Positional-Trigger Trend
Standing/walking triggers counted
Symptoms & Flares
7-symptom set plus flare logging
Lab Tracking
Pinned CBC, CMP, kidney, iron
May-Thurner Syndrome
Available NowA focused dashboard for left-leg swelling, with relevant labs; anticoagulants live in your medications.
May-Thurner shows up as one-sided leg swelling and heaviness with clot risk. Leo tracks the swelling and links to the anticoagulants in your Medications.
Tracked Symptoms
Common Triggers
Included Tools (4)
Left-Leg-Swelling Trend
Count and severity over 30 days
Anticoagulant Link
Tracked in Medications with doses and adherence
Symptoms & Flares
6-symptom set plus flare logging
Lab Tracking
Pinned CBC, CMP, inflammatory
Pelvic Congestion Syndrome
Available NowA focused dashboard for pelvic-pain severity and the end-of-day pattern, with relevant labs.
Pelvic congestion pain tends to build through the day and ease lying down. Leo tracks severity and surfaces the evening pattern.
Tracked Symptoms
Common Triggers
Included Tools (4)
Pelvic-Pain Trend
Average severity and count over 30 days
Evening-Pattern Card
Logs after 5pm — the day-builds-up pattern
Symptoms & Flares
8-symptom set plus flare logging
Lab Tracking
Pinned CBC, CMP, inflammatory, hormone
Thoracic Outlet Syndrome
Available NowA focused dashboard for arm/hand symptoms and overhead-activity triggers, with relevant labs.
Thoracic outlet syndrome sends numbness, tingling and weakness down the arm, often worse overhead. Leo counts the symptoms and the overhead triggers.
Tracked Symptoms
Common Triggers
Included Tools (4)
Overhead-Trigger Trend
Overhead-activity-tagged logs counted (30 days)
Arm/Hand Symptom Trend
Numbness, tingling and weakness counted
PT Link
Physical-therapy work lives in your Workouts
Lab Tracking
Pinned CBC, CMP, inflammatory
Bipolar Disorder
Available NowLog manic, hypomanic and depressive symptoms with severity, sorted into categories so a mixed week reads clearly, with trigger insight and coping tools.
Bipolar mood symptoms swing between poles and shift fast. Leo logs them with severity, groups them into categories, surfaces the trigger that most often precedes episodes, and keeps coping tools one tap away.
Tracked Symptoms
Common Triggers
Included Tools (5)
Mood & Episode Logging
Log manic, hypomanic and depressive symptoms with severity
Symptom Categories
Auto-grouped so a mixed or shifting week reads clearly
Trigger Insight
The top co-occurring trigger for your episodes (descriptive)
Coping Tools
Grounding 5-4-3-2-1 and box breathing
Lab Tracking
Pinned thyroid, CBC, CMP, vitamin D, B12/folate
ARPKD-CHF
Available NowTwo-organ tracking for kidneys and liver — symptom categories, blood pressure, urgent bleeding flags, and the labs both organs need.
Autosomal recessive polycystic kidney disease with congenital hepatic fibrosis affects the kidneys and liver together. Leo's dedicated hub tracks both, including portal-hypertension red flags.
Tracked Symptoms
Common Triggers
Included Tools (4)
Two-Organ Symptom Categories
Kidney, liver/GI and general, broken down over 30 days
Blood Pressure Tracking
Most recent reading with a 14-day history
Urgent Bleeding Flags
Highlights variceal-bleed red flags — vomiting blood, bloody stool
Lab Tracking
Pinned kidney, liver, CBC, urinalysis, coagulation, iron, vitamin D, CMP
Asthma
Available NowSymptom + flare logging, rescue-inhaler use tracking, and trigger/activity correlation — so you can see what sets off your breathing.
Leo's asthma hub tracks symptoms, rescue-inhaler use (as an as-needed medication), and the triggers and activities behind your flares — then surfaces the patterns on device. Descriptive, never diagnostic.
Tracked Symptoms
Common Triggers
Included Tools (4)
Peak Flow Tracking
Log PEFR readings against your personal best — green / yellow / red zones, with a trend
Symptom & Flare Logging
Wheezing, breathlessness, cough and chest tightness — with the trigger that set it off
Rescue Inhaler Tracking
Log each rescue dose as an as-needed medication, with count and timing
Trigger & Activity Correlation
On-device patterns linking flares to exercise, cold air, allergens and more
Anorexia Recovery
Available NowRecovery-first support for anorexia — urge-surfing, coping tools, and pinned crisis resources. No food, calorie, or weight tracking, no screeners, by design.
Most apps that touch eating disorders count the very things that fuel them. Leo doesn't — the anorexia hub helps you ride out urges, reach coping tools, and keep support close, with no food, calories, or weight anywhere.
Tracked Symptoms
Common Triggers
Included Tools (5)
Crisis Support
988 Suicide & Crisis Lifeline + Crisis Text Line, pinned near the top of the hub
Urge Log
Log an urge and how you rode it out — no judgment, with an 'urges ridden out' count
Coping Tools
Guided breathing and grounding, one tap away
Mood, Journal & Letter to Self
Connect feelings to hard moments and keep your reasons for recovery close
Lab Tracking
Electrolyte-aware panels (CMP, CBC, thyroid, vitamin D) for your care team
Bulimia Recovery
Available NowRecovery-first support for bulimia — surf binge and purge urges, connect the feelings underneath, with coping tools and pinned crisis support. No food, calorie, or weight tracking, by design.
Leo's bulimia hub tracks none of the mechanics of the disorder. It helps you ride out binge and purge urges, tie the cycle to the emotions driving it, and reach support in the moment.
Tracked Symptoms
Common Triggers
Included Tools (5)
Crisis Support
988 Suicide & Crisis Lifeline + Crisis Text Line, pinned near the top
Urge Log
Binge and purge urges, their strength, and how they went — no shame framing
Coping Tools
Guided breathing and grounding for the moments urges spike
Mood, Journal & Letter to Self
Link the cycle to the feelings underneath and keep your reasons close
Lab Tracking
Electrolyte-aware panels (CMP, CBC, thyroid, vitamin D) for your care team
Binge Eating Recovery
Available NowRecovery-first support for binge eating disorder — urge-surfing with self-compassion, coping tools, and pinned crisis support. No food, calorie, or weight tracking, by design.
Binge urges often carry a feeling. Leo's hub helps you notice the urge, meet what's underneath with self-compassion, and reach coping tools — with no food, calories, or weight anywhere.
Tracked Symptoms
Common Triggers
Included Tools (5)
Crisis Support
988 Suicide & Crisis Lifeline + Crisis Text Line, pinned near the top
Urge Log
Log a binge urge and how it went, with self-compassion and an 'urges ridden out' count
Coping Tools
Guided breathing and grounding for the hardest moments
Mood, Journal & Letter to Self
Meet the feeling under the urge and keep your reasons close
Lab Tracking
Relevant panels (CMP, CBC, thyroid, vitamin D) for your care team
ARFID Support
Available NowSupport for ARFID centered on the anxiety around eating — hard-moment logging, coping tools, and pinned crisis support. Not weight- or body-driven; no food tracking, by design.
ARFID isn't about weight or body image — it's about anxiety, fear, and sensory distress around eating. Leo's hub centers exactly that, and what helps you through it.
Tracked Symptoms
Common Triggers
Included Tools (5)
Crisis Support
988 Suicide & Crisis Lifeline + Crisis Text Line, pinned near the top
Hard-Moment Log
Log eating anxiety and distress, how strong it was, and what helped
Coping Tools
Guided breathing and grounding for mealtimes and beyond
Mood & Journal
Connect feelings to the hard moments and write through them
Lab Tracking
Nutrition-relevant panels (CMP, CBC, thyroid, vitamin D, iron) for your care team
Eating Disorder Recovery
Available NowA flexible recovery hub for OSFED and disordered eating — urge-surfing, coping tools, and pinned crisis support. No food, calorie, or weight tracking, no screeners, by design.
Disordered eating doesn't always fit a box, and you don't need a diagnosis to use the tools that help. A flexible hub for whatever your relationship with food looks like.
Tracked Symptoms
Common Triggers
Included Tools (5)
Crisis Support
988 Suicide & Crisis Lifeline + Crisis Text Line, pinned near the top
Urge Log
Any urge, its strength, and how it went — surfacing the ones you rode out
Coping Tools
Guided breathing and grounding for the hardest moments
Mood, Journal & Letter to Self
Connect emotions to hard moments and keep your reasons close
Lab Tracking
Relevant panels (CMP, CBC, thyroid, vitamin D) for your care team
Track Multiple Conditions Simultaneously
Chronic conditions rarely exist in isolation. POTS patients often have gastroparesis and EDS. Fibromyalgia overlaps with IBS and migraine. Leo lets you track everything together and find cross-condition patterns.
Unified Health Hub
Each condition adds its own tools to your Health Hub — all in one scrollable view
Condition Pill Bar
Visual indicator of your active conditions with quick access to manage them
Cross-Condition Insights
Discover that your POTS flares correlate with your gastroparesis episodes — patterns you'd never spot manually
Shared Symptom Tracking
Symptoms common to multiple conditions (fatigue, brain fog, nausea) are tracked once and appear in all relevant condition views
Single Medical Journal
All entries, episodes, and flares go into one unified timeline with condition filters
My Conditions
POTS Dashboard
Hydration & symptoms
Fluid & Sodium
Track hydration goals
GI Stimulator
Device settings & GCSI
Attack Timer
Phase-by-phase migraine log
Seizure Diary
Type classification & timer
ER Card
Emergency info for all conditions
Common Condition Combinations
These conditions frequently co-occur. Leo is designed to track them together, not in silos.
The Dysautonomia Cluster
Autonomic dysfunction affects heart rate, digestion, and cerebral blood flow. These three conditions share the same underlying nervous system dysfunction.
The EDS/POTS/MCAS Trifecta
Hypermobile blood vessels, autonomic dysfunction, and mast cell overactivation. Nearly 1 in 3 patients with one has the others. MCAS hub adds a food diary with delayed-reaction follow-up so you can catch the triggers that don't fire for hours.
The Pain & Fatigue Overlap
Central sensitization connects widespread pain, GI dysfunction, and headache disorders. Weather and stress trigger all three simultaneously.
The Neuro-Autonomic Connection
Seizures, migraines, and autonomic dysfunction frequently coexist. Shared neural excitability and autonomic pathways mean treating one often improves the others.
Drag-and-Drop Condition Builder
Living with a rare or unlisted condition? Build your own tracking dashboard from 35+ section types. Choose exactly which vitals, labs, lifestyle metrics, and medical data to track — then drag-and-drop to arrange them your way.
35+ section types: 8 vitals, 16+ lab panels with personal target ranges, mood, sleep, journal, medications, appointments, and more
10 starter presets: Thyroid, Lupus, Lyme, Asthma, Crohn's, Endometriosis, Heart, Kidney, CFS, and General Wellness
Save your own presets and reuse them across multiple conditions
Jiggle-mode editing: drag to reorder, tap X to remove — just like your iPhone home screen
Condition Builder
CustomizeOr start from a preset:
Condition-Specific Lab Tracking
Each condition automatically includes the lab panels that matter most — A1C and ketones for diabetes, CBC and iron for endometriosis, thyroid and inflammatory markers for fibromyalgia. Set personal target ranges, pin your most important panels, and track trends over time right from your condition hub.
Condition-aware defaults: each condition pack comes pre-loaded with its clinically relevant lab panels
Personal target ranges: set your own min/max goals (e.g., A1C 5.5-7.0%) alongside standard reference ranges
Pinned lab cards: your 2-3 most important panels shown as prominent cards with latest values and trend charts
Add any panel: track additional labs beyond the defaults — 16+ panel types available including CBC, CMP, lipid, thyroid, and more
Diabetes Lab Tracking
EditPinned panels shown on your hub
6.2%
Target: 5.5 - 7.0%
0.3 mmol/L
Target: < 0.6 mmol/L
Deep Medical Journal Integration
Your conditions power every part of Leo's Medical Journal — from symptom lists to episode templates to timeline filtering.
Condition Filters
Filter your entire journal timeline by condition. See only gastroparesis entries, only POTS episodes, or everything combined.
Episode Templates
Quick-start a flare log with symptoms and triggers pre-filled for your specific condition. One tap to start tracking a migraine or panic attack.
Cross-Condition Correlations
Leo's correlation engine looks across conditions to find patterns — like how your sleep quality affects both your POTS symptoms and migraine frequency.
HIPAA Coming Soon
All condition profiles, symptom logs, and health data are encrypted and stored securely in your private health record with audit trails.
Stop Piecing Together 5 Different Apps
Leo gives you condition-specific tools, cross-condition insights, and doctor-ready reports — all in one place.
Free to download. Free to track your conditions.
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