# Japan Prefectures Puzzle vs Study Flight

The clearest difference is in-app purchases: Study Flight at none against Japan Prefectures Puzzle's 1. Study Flight also leads on ads (none vs shown). Japan Prefectures Puzzle's advantage is update cadence (weekly vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Japan Prefectures Puzzle sells 1 one-off in-app purchase. Study Flight asks for nothing beyond the download.

Japan Prefectures Puzzle ships an update weekly, Study Flight every 3 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Japan Prefectures Puzzle | Study Flight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 165 MB | 49 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YU KORIKI](https://appshunter.io/developer/6776222963) | [Yuito Kobayashi](https://appshunter.io/developer/6810911024) |

## What reviewers say

### Japan Prefectures Puzzle

[App page](https://appshunter.io/ios/app/japan-prefectures-puzzle/id6796940804)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


### Study Flight

[App page](https://appshunter.io/ios/app/study-flight/id6810911022)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Japan Prefectures Puzzle free?

Japan Prefectures Puzzle is free to download, with in-app purchases available.

### Is Study Flight free?

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

### Do Japan Prefectures Puzzle or Study Flight have ads?

Japan Prefectures Puzzle shows ads; Study Flight does not.

### Which is updated more often, Japan Prefectures Puzzle or Study Flight?

Japan Prefectures Puzzle ships an update weekly, and Study Flight every 3 weeks. Most recently, Japan Prefectures Puzzle was updated on October 29, 2026 and Study Flight on October 25, 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.*