# 穩動 Udon：健身運動紀錄助手 vs trifit Strength Log

The clearest difference is iOS requirement: 穩動 Udon：健身運動紀錄助手 at 13.0 against trifit Strength Log's 26.0. On price, update cadence, ads and in-app purchases 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 and trifit Strength Log sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

穩動 Udon：健身運動紀錄助手 ships an update every 3 weeks, trifit Strength Log fortnightly. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 穩動 Udon：健身運動紀錄助手 | trifit Strength Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 234 MB | 119 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [YU QI Chen](https://appshunter.io/developer/1709631365) | [TeHan Liao](https://appshunter.io/developer/1745243045) |

## 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 |


### trifit Strength Log

[App page](https://appshunter.io/ios/app/trifit-strength-log/id6744907298)

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| trifit 創始者方案 | $1.99 | per month |


## 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 trifit Strength Log free?

trifit Strength Log is free to download, with in-app purchases available.

### Do 穩動 Udon：健身運動紀錄助手 or trifit Strength Log have ads?

Neither 穩動 Udon：健身運動紀錄助手 nor trifit Strength Log shows ads.

### Which is updated more often, 穩動 Udon：健身運動紀錄助手 or trifit Strength Log?

穩動 Udon：健身運動紀錄助手 ships an update every 3 weeks, and trifit Strength Log fortnightly. Most recently, 穩動 Udon：健身運動紀錄助手 was updated on October 16, 2026 and trifit Strength Log on October 15, 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.*