# 都道府県制覇 vs Prefectures

The clearest difference is ads: Prefectures at none against 都道府県制覇's shown. Prefectures also leads on update cadence (daily vs monthly). 都道府県制覇's advantage is iOS requirement (12.0 vs 18.0). 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.

都道府県制覇 ships an update monthly, Prefectures daily. Both last shipped on October 24, 2026.

## The numbers

| Metric | 都道府県制覇 | Prefectures |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Daily** |
| Monetization | Ad-supported | — |
| Size | 51 MB | 103 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sohta Itoh](https://appshunter.io/developer/965803614) | [Terran Kroft](https://appshunter.io/developer/1550589271) |

## What reviewers say

### 都道府県制覇

[App page](https://appshunter.io/ios/app/my-japan-map/id1562358991)

Create and visualize custom maps of prefectures you've visited in Japan. Mark visited locations, add notes, and save up to 10 different maps. Share your travel experiences as images or export data for analysis.

**Highlights:** Mark visited prefectures, Add notes to prefectures, Save up to 10 custom maps, Offline map editing, 15 language support, Share maps on social media, Export data in CSV format

**Features:** macOS Compatibility

**In-app purchases:** none


### Prefectures

[App page](https://appshunter.io/ios/app/prefectures/id6504094652)

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

**In-app purchases:** none


## Frequently asked questions

### Is 都道府県制覇 free?

都道府県制覇 is free to download, with no in-app purchases.

### Is Prefectures free?

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

### Do 都道府県制覇 or Prefectures have ads?

都道府県制覇 shows ads; Prefectures does not.

### Which is updated more often, 都道府県制覇 or Prefectures?

都道府県制覇 ships an update monthly, and Prefectures daily. Most recently, 都道府県制覇 was updated on October 24, 2026 and Prefectures on October 24, 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.*