# AIGym vs 智慧護膝3+3

The clearest difference is update cadence: 智慧護膝3+3 at every 2 weeks against AIGym's every 2 months. 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.

AIGym ships an update every 2 months, 智慧護膝3+3 every 2 weeks. The most recent releases landed on September 16, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | AIGym | 智慧護膝3+3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/aigym/id6444099885/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 35 MB | 191 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yung Hui Huang](https://appshunter.io/developer/1041310220) | [智遊科技服務股份有限公司](https://appshunter.io/developer/1724284475) |

## What reviewers say

### AIGym

[App page](https://appshunter.io/ios/app/aigym/id6444099885)

This app displays fitness data powered by AI technology, offering personalized training experiences. Users can view workout history, adjust goals, and customize sessions by scanning equipment with a QR code. It also integrates with some home body fat scales.

**Highlights:** AI-powered fitness data display, View workout history, Modify training goals, QR code scanning for customized workouts, Integrates with home body fat scales

**In-app purchases:** none


### 智慧護膝3+3

[App page](https://appshunter.io/ios/app/3-plus-3/id6761870008)

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

**In-app purchases:** none


## Frequently asked questions

### Is AIGym free?

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

### Is 智慧護膝3+3 free?

智慧護膝3+3 is free to download, with no in-app purchases.

### Do AIGym or 智慧護膝3+3 have ads?

Neither AIGym nor 智慧護膝3+3 shows ads.

### Which is updated more often, AIGym or 智慧護膝3+3?

AIGym ships an update every 2 months, and 智慧護膝3+3 every 2 weeks. Most recently, AIGym was updated on September 16, 2026 and 智慧護膝3+3 on September 28, 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.*