# air（エアー） vs CSグループ

The clearest difference is update cadence: CSグループ at monthly against air（エアー）'s every 9 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.

air（エアー） ships an update every 9 months, CSグループ monthly. The most recent releases landed on June 5, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | air（エアー） | CSグループ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | Free | — |
| Size | 3 MB | 30 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Naoya Takahashi](https://appshunter.io/developer/1301211980) | [ENGROW INC.](https://appshunter.io/developer/1398649438) |

## What reviewers say

### air（エアー）

[App page](https://appshunter.io/ios/app/air/id926670297)

This official app simplifies booking services with 24/7 availability. Manage reservations, view history, and cancel appointments easily through your personal page. Stay updated with the latest news and offers.

**Highlights:** Easy 24/7 booking, Reservation management, Booking history, Cancellation options, Personal account page, Notifications

**In-app purchases:** none


### CSグループ

[App page](https://appshunter.io/ios/app/cs/id1455420505)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is air（エアー） free?

air（エアー） is free to download, with no in-app purchases.

### Is CSグループ free?

CSグループ is free to download, with no in-app purchases.

### Do air（エアー） or CSグループ have ads?

Neither air（エアー） nor CSグループ shows ads.

### Which is updated more often, air（エアー） or CSグループ?

air（エアー） ships an update every 9 months, and CSグループ monthly. Most recently, air（エアー） was updated on June 5, 2026 and CSグループ on June 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.*