# 穩動 Udon：健身運動紀錄助手 vs 石輪健身 STONE WHEEL

The clearest difference is in-app purchases: 石輪健身 STONE WHEEL at none against 穩動 Udon：健身運動紀錄助手's 2. 穩動 Udon：健身運動紀錄助手's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 穩動 Udon：健身運動紀錄助手 sells 2 in-app purchases, starting at $2.99 per month. 石輪健身 STONE WHEEL asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 12, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 穩動 Udon：健身運動紀錄助手 | 石輪健身 STONE WHEEL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 234 MB | 74 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YU QI Chen](https://appshunter.io/developer/1709631365) | [CLOUDGEM LIMITED](https://appshunter.io/developer/1852719825) |

## What reviewers say

### 穩動 Udon：健身運動紀錄助手

[App page](https://appshunter.io/ios/app/udon/id6468884236)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 創始會員方案 | $2.99 | per month |
| 創始會員方案 | $24.99 | per year |


### 石輪健身 STONE WHEEL

[App page](https://appshunter.io/ios/app/stone-wheel/id6753202732)

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

**In-app purchases:** none


## Frequently asked questions

### Is 穩動 Udon：健身運動紀錄助手 free?

穩動 Udon：健身運動紀錄助手 is free to download, with in-app purchases available.

### Is 石輪健身 STONE WHEEL free?

石輪健身 STONE WHEEL is free to download, with no in-app purchases.

### Do 穩動 Udon：健身運動紀錄助手 or 石輪健身 STONE WHEEL have ads?

Neither 穩動 Udon：健身運動紀錄助手 nor 石輪健身 STONE WHEEL shows ads.

### Which is updated more often, 穩動 Udon：健身運動紀錄助手 or 石輪健身 STONE WHEEL?

穩動 Udon：健身運動紀錄助手 ships an update every 3 weeks, and 石輪健身 STONE WHEEL every 3 weeks. Most recently, 穩動 Udon：健身運動紀錄助手 was updated on September 12, 2026 and 石輪健身 STONE WHEEL on September 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*