MoodSync Tracker vs PEM Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MoodSync Tracker
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MoodSync: Your Personal Mood Tracker Unlock the power of emotional awareness with MoodSync, the intuitive mood tracking app designed to help you understand and manage your emotions effectively. Whether you're navigating daily stressors, seeking to improve your mental well-being, or simply curious about your emotional patterns, MoodSync is here to support you on your journey. Key Features: - Simple Mood Logging: Easily log your moods with just a few taps. Choose from a variety of emotions and add notes to capture your feelings in context. - Privacy First: Your data is yours. MoodSync prioritizes your privacy with secure data storage on the iCloud. Why MoodSync? Emotional well-being is essential for a fulfilling life. MoodSync empowers you to take control of your mental health by fostering self-awareness and encouraging positive habits. With a user-friendly interface and thoughtful design, MoodSync makes mood tracking simple and enjoyable. Download MoodSync today and start your journey towards emotional clarity and wellness!
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 iOS requirement: PEM Diary at 15.1 against MoodSync Tracker's 18.2. 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.
| Parameter | MoodSync Tracker | PEM Diary |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (2 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | — | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 92 MB |
| Age rating | 4+ | 17+ |
| Developer | CodeBlock | Add Jam |
In-app purchases
MoodSync Tracker
No in-app purchases
PEM Diary
No in-app purchases








