# Simple（シンプル） vs THREEA GYM

The clearest difference is update cadence: Simple（シンプル） at every 18 months against THREEA GYM's every 38 months. THREEA GYM's advantage is iOS requirement (13.0 vs 15.6). 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.

Simple（シンプル） ships an update every 18 months, THREEA GYM every 38 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Simple（シンプル） | THREEA GYM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 38 months |
| Size | 2 MB | 3 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SIMPLE, K.K.](https://appshunter.io/developer/1465687010) | [Naoya Takahashi](https://appshunter.io/developer/1301211980) |

## What reviewers say

### Simple（シンプル）

[App page](https://appshunter.io/ios/app/simple/id1465687011)

**In-app purchases:** none


### THREEA GYM

[App page](https://appshunter.io/ios/app/threea-gym/id1633943730)

**In-app purchases:** none


## Frequently asked questions

### Is Simple（シンプル） free?

Simple（シンプル） is free to download, with no in-app purchases.

### Is THREEA GYM free?

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

### Do Simple（シンプル） or THREEA GYM have ads?

Neither Simple（シンプル） nor THREEA GYM shows ads.

### Which is updated more often, Simple（シンプル） or THREEA GYM?

Simple（シンプル） ships an update every 18 months, and THREEA GYM every 38 months. Most recently, Simple（シンプル） was updated on October 26, 2026 and THREEA GYM on November 3, 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.*