Fatigue Test TalTech vs PEM Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fatigue Test TalTech
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This app is designed to collect data to assess mental fatigue through a series of tests where we assess your reaction speed, tremors and other data to provide a dataset that we can use to create a future rating system. This research is conducted by researchers at the Tallinn University of Technology Department of Software Science. You can ask to delete your data from our databases at any time. If you have any technical questions and concerns regarding the practices of this App, please contact us by sending an email to elli.valla@taltech.ee.
PEM Diary
This app helps individuals manage post-exertional malaise (PEM) by logging crashes, tracking severity, symptoms, and duration. It provides insights into patterns and creates a shareable record for personal reference or healthcare discussions.
- Log PEM crashes with dates
- Track severity and symptoms
- Add contextual notes
- View trends on timeline/dashboard
- 100% private local storage
- Export data as CSV
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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!
Screenshots
Verdict
The clearest difference is update cadence: Fatigue Test TalTech at weekly against PEM Diary's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Fatigue Test TalTech ships an update weekly, PEM Diary every 3 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | Fatigue Test TalTech | PEM Diary |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (2 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Weekly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 21 MB | 92 MB |
| Age rating | 4+ | 17+ |
| Developer | Tallinn Tehnikaulikool | Add Jam |
In-app purchases
Fatigue Test TalTech
No in-app purchases
PEM Diary
No in-app purchases
Questions
Is Fatigue Test TalTech free?
Is PEM Diary free?
Do Fatigue Test TalTech or PEM Diary have ads?
Which is updated more often, Fatigue Test TalTech or PEM Diary?
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