Comparison

mTrigger Muscle Ball vs Calf Raise

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Gamified biofeedback therapy
  • Use muscle exercises as game controller
  • Navigate labyrinth challenges
  • Variety of tracks based on muscle groups
  • Adjust time parameters and reps
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

*** 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

mTrigger Muscle Ball3 screens
Calf Raise4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
mTrigger Muscle Ball versus Calf Raise: the parameters behind the verdict, then further details
ParametermTrigger Muscle BallCalf Raise
PriceFreeFree
Rating4.3 (4 ratings) — better3.9 (16 ratings)
Positive reviews66.7% of reviews — better20.0% of reviews
Number of ratings416 — better
Update frequencyEvery 5 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size76 MB30 MB
Age rating17+4+
DevelopermTriggerKim Hebert-Losier

Customer experience

mTrigger Muscle Ball

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Calf Raise

All ratings15 ratings
Positive73.3%
Neutral6.7%
Negative20.0%
Written reviews5 reviews
Positive20.0%
Neutral20.0%
Negative60.0%

In-app purchases

None

mTrigger Muscle Ball

No in-app purchases

None

Calf Raise

No in-app purchases

Questions

Is mTrigger Muscle Ball free?
mTrigger Muscle Ball is free to download, with no in-app purchases.
Is Calf Raise free?
Calf Raise is free to download, with no in-app purchases.
Which has better reviews, mTrigger Muscle Ball or Calf Raise?
mTrigger Muscle Ball is rated higher. mTrigger Muscle Ball averages 4.3 out of 5 from 4 ratings, while Calf Raise averages 3.9 from 16 ratings.
Do mTrigger Muscle Ball or Calf Raise have ads?
Neither mTrigger Muscle Ball nor Calf Raise shows ads.
Which is updated more often, mTrigger Muscle Ball or Calf Raise?
mTrigger Muscle Ball ships an update every 5 months, and Calf Raise monthly. Most recently, mTrigger Muscle Ball was updated on November 6, 2026 and Calf Raise on November 3, 2026.

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