# Reserve vs Prima公式アプリ

The clearest difference is update cadence: Reserve at every 4 weeks against Prima公式アプリ's every 38 months. Prima公式アプリ's advantage is iOS requirement (12.0 vs 14.0). 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.

Reserve ships an update every 4 weeks, Prima公式アプリ every 38 months. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Reserve | Prima公式アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 38 months |
| Size | 29 MB | 17 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ENGROW INC.](https://appshunter.io/developer/1398649438) | [MARIKA IKAWA](https://appshunter.io/developer/1494119052) |

## What reviewers say

### Reserve

[App page](https://appshunter.io/ios/app/reserve/id1437229181)

**Features:** macOS Compatibility

**In-app purchases:** none


### Prima公式アプリ

[App page](https://appshunter.io/ios/app/prima/id1494119053)

**In-app purchases:** none


## Frequently asked questions

### Is Reserve free?

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

### Is Prima公式アプリ free?

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

### Do Reserve or Prima公式アプリ have ads?

Neither Reserve nor Prima公式アプリ shows ads.

### Which is updated more often, Reserve or Prima公式アプリ?

Reserve ships an update every 4 weeks, and Prima公式アプリ every 38 months. Most recently, Reserve was updated on October 1, 2026 and Prima公式アプリ on October 2, 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.*