# MuscleTimerPro vs SIMPLE IRON TIMER

The clearest difference is ads: MuscleTimerPro at none against SIMPLE IRON TIMER's shown. SIMPLE IRON TIMER's advantage is update cadence (daily vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

MuscleTimerPro ships an update every 2 weeks, SIMPLE IRON TIMER daily. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | MuscleTimerPro | SIMPLE IRON TIMER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Size | 56 MB | 39 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [JIN TANDA](https://appshunter.io/developer/1865935191) | [Kei Iwata](https://appshunter.io/developer/1896014765) |

## What reviewers say

### MuscleTimerPro

[App page](https://appshunter.io/ios/app/muscletimerpro/id6757308856)

**Features:** macOS Compatibility

**In-app purchases:** none


### SIMPLE IRON TIMER

[App page](https://appshunter.io/ios/app/simple-iron-timer/id6771781121)

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

**In-app purchases:** none


## Frequently asked questions

### Is MuscleTimerPro free?

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

### Is SIMPLE IRON TIMER free?

SIMPLE IRON TIMER is free to download, with no in-app purchases.

### Do MuscleTimerPro or SIMPLE IRON TIMER have ads?

SIMPLE IRON TIMER shows ads; MuscleTimerPro does not.

### Which is updated more often, MuscleTimerPro or SIMPLE IRON TIMER?

MuscleTimerPro ships an update every 2 weeks, and SIMPLE IRON TIMER daily. Most recently, MuscleTimerPro was updated on October 4, 2026 and SIMPLE IRON TIMER on September 30, 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.*