# mTrigger Muscle Ball vs Motion Guidance Interactive

The clearest difference is in-app purchases: mTrigger Muscle Ball at none against Motion Guidance Interactive's 7. mTrigger Muscle Ball also leads on rating (4.3 vs 4.0). Motion Guidance Interactive's advantage is update cadence (every 9 days vs every 5 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Motion Guidance Interactive sells 7 in-app purchases, starting at $3.99 per month. mTrigger Muscle Ball asks for nothing beyond the download.

mTrigger Muscle Ball holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

mTrigger Muscle Ball ships an update every 5 months, Motion Guidance Interactive every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | mTrigger Muscle Ball | Motion Guidance Interactive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/mtrigger-muscle-ball/id1436093951/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/motion-guidance-interactive/id6456705086/reviews) |
| Number of ratings | 4 | 4 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 76 MB | 127 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [mTrigger](https://appshunter.io/developer/1240335568) | [Motion Guidance LLC](https://appshunter.io/developer/1700579141) |

## What reviewers say

### mTrigger Muscle Ball

[App page](https://appshunter.io/ios/app/mtrigger-muscle-ball/id1436093951)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Motion Guidance Interactive

[App page](https://appshunter.io/ios/app/motion-guidance-interactive/id6456705086)

This application provides real-time visual feedback to enhance client training for any body part. It measures performance in reaction time and proprioception, helping users see tangible results.

**Highlights:** Real-time visual feedback, Proprioception training, Reaction time measurement, Client training enhancement, Body-part specific training

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access for MG VISION-PRO | $3.99 | per month |
| Vision-pro access | $3.99 | per month |
| Motion Guidance Home Workout | $4.99 | per month |
| Subscription monthly | $8.99 | per month |
| Motion capture | $9.99 | per month |
| CLINICIAN PRO ACCESS | $14.99 | per month |
| 1 year subscription | $99.99 | per year |


## Frequently asked questions

### Is mTrigger Muscle Ball free?

mTrigger Muscle Ball is free to download, with no in-app purchases.

### Is Motion Guidance Interactive free?

Motion Guidance Interactive is free to download, with in-app purchases available.

### Which has better reviews, mTrigger Muscle Ball or Motion Guidance Interactive?

mTrigger Muscle Ball is rated higher. mTrigger Muscle Ball averages 4.3 out of 5 from 4 ratings, while Motion Guidance Interactive averages 4.0 from 4 ratings.

### Do mTrigger Muscle Ball or Motion Guidance Interactive have ads?

Neither mTrigger Muscle Ball nor Motion Guidance Interactive shows ads.

### Which is updated more often, mTrigger Muscle Ball or Motion Guidance Interactive?

mTrigger Muscle Ball ships an update every 5 months, and Motion Guidance Interactive every 9 days. Most recently, mTrigger Muscle Ball was updated on October 24, 2026 and Motion Guidance Interactive on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*