# Signature II

> Signature II (iPhone/iPad app by michael cha.)

- Source: https://appshunter.io/ios/app/signature-ii/id6760736124 (this page in markdown: same URL + `.md`)
- Developer: [michael cha](https://appshunter.io/developer/1387377464)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 26 MB
- Languages: American English
- Released: 2026-03-26
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/signature-ii/id6760736124/reviews.md

## What is Signature II?

Control your Osaki massage chair with your smartphone. The Osaki Smart App allows you to easily control your massage chair and customize your relaxation experience.


## Version history (last 1 release)

### 1.0.0 — 2026-03-27

No release notes.

## More apps by michael cha

- [Osaki Ekon](https://appshunter.io/ios/app/osaki-ekon/id1387377465)
- [OS-4D Pro Ekon+](https://appshunter.io/ios/app/os-4d-pro-ekon-plus/id1571606617)
- [Osaki Platinum - Xrest 4D](https://appshunter.io/ios/app/osaki-platinum-xrest-4d/id6443444227)
- [Osaki Platinum - 4D Master](https://appshunter.io/ios/app/osaki-platinum-4d-master/id6444843513)
- [Osaki 4D DuoMax](https://appshunter.io/ios/app/osaki-4d-duomax/id6464078369)

All apps by michael cha: https://appshunter.io/developer/1387377464

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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 2026-05-16.*