# Trainer vs 穩動 Udon：健身運動紀錄助手

The clearest difference is update cadence: Trainer at every 3 days against 穩動 Udon：健身運動紀錄助手's every 3 weeks. 穩動 Udon：健身運動紀錄助手's advantage is iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Trainer sells 2 in-app purchases, starting at $9.99 per month and 穩動 Udon：健身運動紀錄助手 sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Trainer ships an update every 3 days, 穩動 Udon：健身運動紀錄助手 every 3 weeks. The most recent releases landed on September 8, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Trainer | 穩動 Udon：健身運動紀錄助手 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trainer-strength-workout-log/id1440150385/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 276 MB | 234 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Joe Waldow](https://appshunter.io/developer/1037047208) | [YU QI Chen](https://appshunter.io/developer/1709631365) |

## What reviewers say

### Trainer

[App page](https://appshunter.io/ios/app/trainer-strength-workout-log/id1440150385)

This app helps you create personalized strength training plans, track your workouts with detailed logging, and analyze your progress. It features a comprehensive exercise library with 3D visuals and tools to help you lift the right weight.

**Highlights:** Personalized training plan creation, Guided workout tracking, Extensive exercise library with 3D visuals, Progress and performance analysis, Superset and triple set planning, Barbell and dumbbell calculators

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trainer Mitgliedschaft Monatlich | $9.99 | per month |
| Trainer Mitgliedschaft Jährlich | $69.99 | per year |


### 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 |


## Frequently asked questions

### Is Trainer free?

Trainer is free to download, with in-app purchases available.

### 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.

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

Neither Trainer nor 穩動 Udon：健身運動紀錄助手 shows ads.

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

Trainer ships an update every 3 days, and 穩動 Udon：健身運動紀錄助手 every 3 weeks. Most recently, Trainer was updated on September 8, 2026 and 穩動 Udon：健身運動紀錄助手 on September 12, 2026.

---

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