# MtF MUGEN GYM vs Group03カレンダー

The clearest difference is update cadence: Group03カレンダー at every 2 months against MtF MUGEN GYM's every 38 months. MtF MUGEN GYM's advantage is iOS requirement (12.0 vs 15.0). 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.

MtF MUGEN GYM ships an update every 38 months, Group03カレンダー every 2 months. The most recent releases landed on October 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | MtF MUGEN GYM | Group03カレンダー |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 2 months** |
| Size | 17 MB | 52 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MASAKI SUGAYA](https://appshunter.io/developer/1473933542) | [katsutoshi Kono](https://appshunter.io/developer/1582632451) |

## What reviewers say

### MtF MUGEN GYM

[App page](https://appshunter.io/ios/app/mtf-mugen-gym/id1473933543)

**In-app purchases:** none


### Group03カレンダー

[App page](https://appshunter.io/ios/app/group03/id1582632449)

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

**In-app purchases:** none


## Frequently asked questions

### Is MtF MUGEN GYM free?

MtF MUGEN GYM is free to download, with no in-app purchases.

### Is Group03カレンダー free?

Group03カレンダー is free to download, with no in-app purchases.

### Do MtF MUGEN GYM or Group03カレンダー have ads?

Neither MtF MUGEN GYM nor Group03カレンダー shows ads.

### Which is updated more often, MtF MUGEN GYM or Group03カレンダー?

MtF MUGEN GYM ships an update every 38 months, and Group03カレンダー every 2 months. Most recently, MtF MUGEN GYM was updated on October 29, 2026 and Group03カレンダー on October 6, 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.*