# mTrigger Muscle Ball vs Activ5

The clearest difference is review sentiment: mTrigger Muscle Ball at 67% against Activ5's 44%. mTrigger Muscle Ball also leads on rating (4.3 vs 4.0). Activ5's advantage is update cadence (every 2 months vs every 5 months) and ratings volume (45 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

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 4.0. That said, the two scores are not equally well evidenced: Activ5 has 45 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 67% of mTrigger Muscle Ball's written reviews are positive against 44% of Activ5's.

mTrigger Muscle Ball ships an update every 5 months, Activ5 every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | mTrigger Muscle Ball | Activ5 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/mtrigger-muscle-ball/id1436093951/reviews)** | [4.0 (45 ratings)](https://appshunter.io/ios/app/activ5/id1488553461/reviews) |
| Number of ratings | 4 | **45** |
| Positive reviews | **66.7% of reviews** | 43.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 76 MB | 84 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [mTrigger](https://appshunter.io/developer/1240335568) | [Activbody, Inc.](https://appshunter.io/developer/1077331801) |

## 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


### Activ5

[App page](https://appshunter.io/ios/app/activ5/id1488553461)

This app coaches you through personalized isometric strength training workouts using a portable device. It measures your strength, tracks progress, and provides detailed stats to help you identify weaknesses and prevent injury. Achieve a full-body workout in minutes, anywhere, anytime.

**Highlights:** Personalized isometric workouts, Strength measurement, Progress tracking, Workout of the day, Muscle group stats, Exercise streak tracking, Apple HealthKit integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is mTrigger Muscle Ball free?

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

### Is Activ5 free?

Activ5 is free to download, with no in-app purchases.

### Which has better reviews, mTrigger Muscle Ball or Activ5?

mTrigger Muscle Ball is rated higher. mTrigger Muscle Ball averages 4.3 out of 5 from 4 ratings, while Activ5 averages 4.0 from 45 ratings.

### Do mTrigger Muscle Ball or Activ5 have ads?

Neither mTrigger Muscle Ball nor Activ5 shows ads.

### Which is updated more often, mTrigger Muscle Ball or Activ5?

mTrigger Muscle Ball ships an update every 5 months, and Activ5 every 2 months. Most recently, mTrigger Muscle Ball was updated on November 6, 2026 and Activ5 on November 3, 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.*