# マッチョング vs Iron Flow

The clearest difference is update cadence: Iron Flow at every 10 days against マッチョング's every 3 weeks. マッチョング's advantage is iOS requirement (13.0 vs 26.1). 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.

マッチョング ships an update every 3 weeks, Iron Flow every 10 days. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | マッチョング | Iron Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 49 MB | 156 MB |
| Requires iOS | **13.0** | 26.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [AIMADESIGN, K.K.](https://appshunter.io/developer/1570747045) | [Yusuke Kawanabe](https://appshunter.io/developer/942826231) |

## What reviewers say

### マッチョング

[App page](https://appshunter.io/ios/app/id6450687943)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Iron Flow

[App page](https://appshunter.io/ios/app/iron-flow-workout-tracker/id6761587187)

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

**In-app purchases:** none


## Frequently asked questions

### Is マッチョング free?

マッチョング is free to download, with no in-app purchases.

### Is Iron Flow free?

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

### Do マッチョング or Iron Flow have ads?

Neither マッチョング nor Iron Flow shows ads.

### Which is updated more often, マッチョング or Iron Flow?

マッチョング ships an update every 3 weeks, and Iron Flow every 10 days. Most recently, マッチョング was updated on October 2, 2026 and Iron Flow on October 4, 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.*