# SunfitLink vs TT运动

The clearest difference is ads: SunfitLink at none against TT运动's shown. SunfitLink also leads on iOS requirement (11.0 vs 15.0). TT运动's advantage is device support (3 vs 1). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SunfitLink ships an update every 3 weeks, TT运动 monthly. The most recent releases landed on September 8, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | SunfitLink | TT运动 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Subscription |
| Size | 21 MB | 351 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bokai Sunlight (Beijing) Technology Ltd.](https://appshunter.io/developer/1272740597) | [北京体提科技有限公司](https://appshunter.io/developer/1680431935) |

## What reviewers say

### SunfitLink

[App page](https://appshunter.io/ios/app/sunfitlink/id1272740598)

**Features:** macOS Compatibility

**In-app purchases:** none


### TT运动

[App page](https://appshunter.io/ios/app/tt/id6478207008)

This app analyzes your athletic movements by identifying key body points from videos. It offers detailed visual feedback and comparison tools to help you improve your form and performance.

**Highlights:** AI-powered body posture analysis, Key joint point identification, Action problem detection, Skeleton diagrams and fishbone lines, Two-person motion comparison, Frame-by-frame playback and slow-motion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SunfitLink free?

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

### Is TT运动 free?

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

### Do SunfitLink or TT运动 have ads?

TT运动 shows ads; SunfitLink does not.

### Which is updated more often, SunfitLink or TT运动?

SunfitLink ships an update every 3 weeks, and TT运动 monthly. Most recently, SunfitLink was updated on September 8, 2026 and TT运动 on September 11, 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.*