# ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ vs ambiance

The clearest difference is ads: ambiance at none against ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ's shown. ambiance also leads on iOS requirement (13.0 vs 15.6). ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ's advantage is update cadence (every 8 months vs every 41 months). On price, 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.

ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ ships an update every 8 months, ambiance every 41 months. The most recent releases landed on October 9, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ | ambiance |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 8 months** | Every 41 months |
| Size | 80 MB | 4 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JOHNNY MAEDA](https://appshunter.io/developer/1352875766) | [HIROKI MITANI](https://appshunter.io/developer/1621990907) |

## What reviewers say

### ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ

[App page](https://appshunter.io/ios/app/id1352875767)

**Features:** Apple Wallet

**In-app purchases:** none


### ambiance

[App page](https://appshunter.io/ios/app/ambiance/id1621990905)

**In-app purchases:** none


## Frequently asked questions

### Is ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ free?

ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ is free to download, with no in-app purchases.

### Is ambiance free?

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

### Do ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ or ambiance have ads?

ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ shows ads; ambiance does not.

### Which is updated more often, ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ or ambiance?

ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ ships an update every 8 months, and ambiance every 41 months. Most recently, ＲＥＸ　ｈａｉｒ　ｇｒｏｕｐ　公式アプリ was updated on October 9, 2026 and ambiance on November 3, 2026.

---

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