# air（エアー） vs SHIMA

air（エアー） and SHIMA are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, SHIMA every 15 months. The most recent releases landed on June 5, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | air（エアー） | SHIMA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 15 months |
| Monetization | Free | — |
| Size | 3 MB | 3 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Naoya Takahashi](https://appshunter.io/developer/1301211980) | [shingo kamei](https://appshunter.io/developer/1256845824) |

## 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


### SHIMA

[App page](https://appshunter.io/ios/app/shima/id1175985016)

**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 SHIMA free?

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

### Do air（エアー） or SHIMA have ads?

Neither air（エアー） nor SHIMA shows ads.

### Which is updated more often, air（エアー） or SHIMA?

air（エアー） ships an update every 9 months, and SHIMA every 15 months. Most recently, air（エアー） was updated on June 5, 2026 and SHIMA on September 13, 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.*