# JP Prefecture vs Onomanabi

The clearest difference is in-app purchases: JP Prefecture at none against Onomanabi's 2. JP Prefecture also leads on iOS requirement (8.0 vs 16.4). Onomanabi's advantage is ads (none vs shown) and update cadence (every 6 days vs every 12 months). On price and device support there is nothing between them.

Both are free to download. Onomanabi sells 2 one-off in-app purchases. JP Prefecture asks for nothing beyond the download.

JP Prefecture ships an update every 12 months, Onomanabi every 6 days. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | JP Prefecture | Onomanabi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 6 days** |
| Size | 572 MB | 93 MB |
| Requires iOS | **8.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hajime Sasaki](https://appshunter.io/developer/1495619502) | [Takeshi Nogi](https://appshunter.io/developer/1861683073) |

## What reviewers say

### JP Prefecture

[App page](https://appshunter.io/ios/app/jp-prefecture/id1531833260)

**Features:** macOS Compatibility

**In-app purchases:** none


### Onomanabi

[App page](https://appshunter.io/ios/app/onomanabi/id6785002188)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onomanabi Premium (Welcome) | $11.99 | one-time |
| Onomanabi Premium | $14.99 | one-time |


## Frequently asked questions

### Is JP Prefecture free?

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

### Is Onomanabi free?

Onomanabi is free to download, with in-app purchases available.

### Do JP Prefecture or Onomanabi have ads?

JP Prefecture shows ads; Onomanabi does not.

### Which is updated more often, JP Prefecture or Onomanabi?

JP Prefecture ships an update every 12 months, and Onomanabi every 6 days. Most recently, JP Prefecture was updated on October 16, 2026 and Onomanabi 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.*