# Muscle vs BE RUTHLESS

The clearest difference is ads: BE RUTHLESS at none against Muscle's shown. Muscle's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, update cadence and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 12, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Muscle | BE RUTHLESS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | Fortnightly |
| Size | 186 MB | 100 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BullsAI B.V.](https://appshunter.io/developer/1731344307) | [FITsociety BV (Apps)](https://appshunter.io/developer/1756257213) |

## What reviewers say

### Muscle

[App page](https://appshunter.io/ios/app/muscle-coach/id6478009374)

**Features:** macOS Compatibility

**In-app purchases:** none


### BE RUTHLESS

[App page](https://appshunter.io/ios/app/be-ruthless/id6751170381)

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

**In-app purchases:** none


## Frequently asked questions

### Is Muscle free?

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

### Is BE RUTHLESS free?

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

### Do Muscle or BE RUTHLESS have ads?

Muscle shows ads; BE RUTHLESS does not.

### Which is updated more often, Muscle or BE RUTHLESS?

Muscle ships an update fortnightly, and BE RUTHLESS fortnightly. Most recently, Muscle was updated on November 12, 2026 and BE RUTHLESS on October 28, 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.*