# CT UPGRADE

> CT UPGRADE (iPhone/iPad app by 开才 周.)

- Source: https://appshunter.io/ios/app/ct-upgrade/id1477423347 (this page in markdown: same URL + `.md`)
- Developer: [开才 周](https://appshunter.io/developer/1523248311)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 9.0 · 19 MB
- Languages: American English, Czech, Danish, Dutch, French (France), German (Germany), Greek, Hungarian, Italian, Japanese and 8 more
- Released: 2019-08-26
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/ct-upgrade/id1477423347/reviews.md

## What is CT UPGRADE?

智能手环专用固件升级工具


## Version history (last 5 releases)

### 1.1.3 — 2020-06-13

- update ota address

### 1.1.2 — 2020-01-08

- Dfu mode offline upgrade firmware compatible.

### 1.1.1 — 2019-10-31

- Compatible with 5-bit model number

### 1.1 — 2019-08-29

固件下载优化

### 1.0 — 2019-08-27

No release notes.

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## More apps by 开才 周

- [CT Fit](https://appshunter.io/ios/app/ct-fit/id1436606144)
- [MANS PRO](https://appshunter.io/ios/app/mans-pro/id1440457137)
- [WELTBILD FIT](https://appshunter.io/ios/app/weltbild-fit/id1461661296)
- [CT S FIT](https://appshunter.io/ios/app/ct-s-fit/id1466895249)
- [Smart+ Watch](https://appshunter.io/ios/app/smart-plus-watch/id1468042087)

All apps by 开才 周: https://appshunter.io/developer/1523248311

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*