
PEM Diary - ME/CFS Crash Log
Track post-exertional malaise
Only for iPhone
Free · Designed for iPhone
iPhone
Do you experience episodes of extreme fatigue? PEM Diary helps you log and track post-exertional malaise (PEM) with personal records, including severity, symptoms, and duration. Whether you’re managing ME/CFS (Myalgic Encephalomyelitis/Chronic Fatigue Syndrome) or dealing with unexplained fatigue, this app helps you identify patterns and keep a record for personal reference or discussions with your healthcare provider.
FEATURES:
- Log PEM crashes with start & end dates
- Track severity (1–5 scale) & symptoms
- Add notes for additional context
- View trends with a timeline & dashboard
- 100% private – all data is stored locally on your device and never leaves it unless you export it
- Data export - export your collected data as a CSV which is easily shareable with health care professionals or studies
Use PEM Diary to track PEM for personal insights or to support medical discussions and diagnosis efforts. Start managing your health more effectively today!
PRIVACY & SECURITY
Your health data never leaves your device unless you choose to export it. No cloud storage, no data sharing – complete privacy guaranteed.
MADE FOR YOU
Perfect for:
• Tracking PEM patterns
• Supporting healthcare discussions
• Understanding your energy limits
• Building a detailed health record
MEDICAL NOTICE
PEM Diary is a personal tracking tool. Always consult healthcare professionals for medical advice and treatment decisions.
Download now to take control of your energy management journey!
Start tracking your PEM episodes!
Ratings & Reviews
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Under‑the‑bonnet updates to keep PEM tracking reliable and running smoothly
The developer, Add Jam, 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
- Size
- 96 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment Information
- Provider
ADD JAM LIMITED
- ADD JAM LIMITED has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
- DUNS Number
219870264 - Address
Suite 2/3 106 Hope Street
Glasgow
Lanarkshire
G2 6PH
United Kingdom - Phone Number
+44 1418460040 - Email
team@addjam.com
- Copyright
- © 2025 Add Jam