mTrigger Muscle Ball vs Calf Raise
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
mTrigger Muscle Ball
Turn your muscle exercises into an interactive game. Control in-game elements by engaging specific muscle groups with a compatible biofeedback device. Navigate challenges and reach goals through targeted muscle activation.
- Gamified biofeedback therapy
- Use muscle exercises as game controller
- Navigate labyrinth challenges
- Variety of tracks based on muscle groups
- Adjust time parameters and reps
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Gamify your biofeedback therapy! Compatible with the mTrigger Biofeedback System, Muscle Ball lets you use your mTrigger exercises as a game controller. Use your muscles to navigate through a labyrinth and reach the goal gate. Chose between a wide variety of tracks based on muscle groups and difficulty. Connect your mTrigger device and adjust settings per exercise by modifying time parameters and reps for each play session.
Calf Raise
This app uses your device's camera to analyze calf raise performance through video. It measures height, power, and work, and calculates a fatigue index. Track progress over time and compare left and right leg performance.
- Video analysis of calf raises
- Measures heel height, power, and work
- Calculates fatigue index
- Supports external load for strength testing
- Multi-user support
- Data export to CSV
- Integrated metronome
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*** Designed by physiotherapists and sports scientists*** *** Based on validated work published in the Journal of Strength & Conditioning Research and Journal of Sports Sciences*** Calf Raise is the first scientifically designed app to measure Calf Raise performance from videos using your iPad or iPhone. With an innovative design and validated tracking algorithms, Calf Raise brings science to your practice! The Calf Raise (rise) or Heel Raise (rise) test is often used in clinical practice and research to assess the strength and endurance of the calf muscles. The test involves going up on your toes and back down as many times as you can. The test has excellent reliability and is able to detect side-to-side differences and injury deficits, especially when tracking more than just the number of raises! The Calf Raise app lets you do that. Want to measure power and work with an external load? No problem! Enter the additional load used to test strength more than endurance. Calf Raise is versatile to fit your testing needs. Calf Raise gives you detailed information on your Calf Raise (Heel Raise) performance using the camera on your iOS device. Calf Raise tracks the path of a circle placed on your heel and its full trajectory curve. With three simple clicks, you get total and peak heel height, power, and work! Calf Raise also calculates a fatigue index by comparing the first and last repetition, and provides a convenient place to record the total number completed! All you need to do is enter your details, record a repetitive Calf Raise performance, adjust the tracking marker, and select the start, first peak, and last peak, and voila! Do the test on the right and left legs to compare between sides and detect any asymmetries. FEATURES: • Videos. Record videos straight from the app or import as many as you like from your camera roll. • Metronome. Select your metronome: 30 Hz, 60 Hz, 120 Hz, or none • Additional load. Add external load to assess strength more than endurance. • Multi-user. Calf Raise allows you to create as many users as you want. Monitor all your patients, clients, or athletes on your iDevice. • History. Record as many Calf Raise tests as you want for each user. With Calf Raise, you can track the evolution of your performance over time, and compare your right and left legs. • Export. Export data to a CSV file to do your own analysis. • Design. Beautiful, intuitive design. CALF RAISE, A CALF RAISE TESTING PLATFORM IN THE PALMS OF YOUR HANDS. CAPTURE PERFORMANCE WHERE IT MATTERS!
Screenshots
Verdict
The clearest difference is review sentiment: mTrigger Muscle Ball at 67% against Calf Raise's 20%. mTrigger Muscle Ball also leads on rating (4.3 vs 3.9). Calf Raise's advantage is update cadence (monthly vs every 5 months) and ratings volume (16 vs 4). On price, ads, in-app purchases and monetization model 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.
mTrigger Muscle Ball holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 4 and 16 respectively. Written reviews point the same way: 67% of mTrigger Muscle Ball's written reviews are positive against 20% of Calf Raise's.
mTrigger Muscle Ball ships an update every 5 months, Calf Raise monthly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | mTrigger Muscle Ball | Calf Raise |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) — better | 3.9 (16 ratings) |
| Positive reviews | 66.7% of reviews — better | 20.0% of reviews |
| Number of ratings | 4 | 16 — better |
| Update frequency | Every 5 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 76 MB | 30 MB |
| Age rating | 17+ | 4+ |
| Developer | mTrigger | Kim Hebert-Losier |
Customer experience
mTrigger Muscle Ball
Calf Raise
In-app purchases
mTrigger Muscle Ball
No in-app purchases
Calf Raise
No in-app purchases
Questions
Is mTrigger Muscle Ball free?
Is Calf Raise free?
Which has better reviews, mTrigger Muscle Ball or Calf Raise?
Do mTrigger Muscle Ball or Calf Raise have ads?
Which is updated more often, mTrigger Muscle Ball or Calf Raise?
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