FLEX Study App vs TrackMG
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FLEX Study App
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While using this app you will be asked to complete study related activities and tasks. Activities you may be asked to complete can include completing your dosing diary and performing a Telehealth call with your study doctor.
TrackMG
Manage your myasthenia gravis with this app. Track symptoms weekly, view trends, add notes, and generate reports for your doctor. Set personal goals and prepare for appointments.
- Weekly symptom check-ins
- Trend analysis
- Personal notes
- Appointment reminders
- Shareable doctor reports
- Personal goal setting
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Take charge of your myasthenia gravis journey with an app designed to make tracking simple and meaningful to you. With TrackMG, you can: • Complete weekly symptom check-ins • See your trends over time and compare week-to-week changes • Add personal notes to remember what matters to you between visits • Get reminders to stay on track with your check-ins • Generate clear, shareable reports for your doctor • Set personal goals and feel more prepared for appointments Whether you’re newly diagnosed or have been managing MG for years, TrackMG helps you stay organized, understand your condition, and have more informed conversations with your care team.
Screenshots
Verdict
The clearest difference is update cadence: TrackMG at every 5 weeks against FLEX Study App's every 5 months. FLEX Study App's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, ads and in-app purchases 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.
FLEX Study App ships an update every 5 months, TrackMG every 5 weeks. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.
| Parameter | FLEX Study App | TrackMG |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 149 MB | 119 MB |
| Age rating | 17+ | 12+ |
| Developer | Hello Thread | MediSafe Inc. |
In-app purchases
FLEX Study App
No in-app purchases
TrackMG
No in-app purchases
