Symptom Tracker & Health Diary
Chronic Illness & Flare Log
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Track symptoms privately. Bring patterns to your doctor.
PREMIUM — PURCHASE REQUIRED: All features described below are part of Pro and require a purchase: a weekly or yearly auto-renewing subscription, or a one-time lifetime purchase.
SymptLog is a private health diary for recording symptoms, their severity, duration, and triggers. Each entry captures the symptom name, a 1-to-10 severity rating, how many hours it lasted, and what may have caused it. A chart view shows severity trends over time so you can spot patterns before your next doctor visit. Notes let you add extra context to any entry. All data is stored locally via SwiftData — no account, no sharing, completely private.
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Subscriptions
In-App Purchases
The developer, LEAN ASIA CO., LTD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- LEAN ASIA CO., LTD
- Size
- 3.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pain Journal Lifetime $49.99
- Trigger Patterns Yearly $24.99
- Severity Trends Weekly $4.99
- Copyright
- © 2026 LEAN ASIA CO., LTD