# MuscleLight vs RowIQFuel

The clearest difference is update cadence: RowIQFuel at every 3 days against MuscleLight's monthly. On price, ads, in-app purchases and device support there is nothing between them.

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

MuscleLight ships an update monthly, RowIQFuel every 3 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | MuscleLight | RowIQFuel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 52 MB | 4 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Recolth Oy](https://appshunter.io/developer/1814360098) | [RowIQ LLC](https://appshunter.io/developer/1891185674) |

## What reviewers say

### MuscleLight

[App page](https://appshunter.io/ios/app/musclelight/id6745891466)

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

**In-app purchases:** none


### RowIQFuel

[App page](https://appshunter.io/ios/app/rowiqfuel/id6790628800)

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

**In-app purchases:** none


## Frequently asked questions

### Is MuscleLight free?

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

### Is RowIQFuel free?

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

### Do MuscleLight or RowIQFuel have ads?

Neither MuscleLight nor RowIQFuel shows ads.

### Which is updated more often, MuscleLight or RowIQFuel?

MuscleLight ships an update monthly, and RowIQFuel every 3 days. Most recently, MuscleLight was updated on October 25, 2026 and RowIQFuel on October 25, 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.*