# JP Prefecture vs ディアビSST

The clearest difference is ads: ディアビSST at none against JP Prefecture's shown. ディアビSST also leads on update cadence (daily vs every 12 months). JP Prefecture's advantage is iOS requirement (8.0 vs 15.0). 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.

JP Prefecture ships an update every 12 months, ディアビSST daily. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | JP Prefecture | ディアビSST |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Daily** |
| Size | 572 MB | 92 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hajime Sasaki](https://appshunter.io/developer/1495619502) | [TECH Planning LLC.](https://appshunter.io/developer/1604758659) |

## What reviewers say

### JP Prefecture

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

**Features:** macOS Compatibility

**In-app purchases:** none


### ディアビSST

[App page](https://appshunter.io/ios/app/sst/id6761046886)

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

**In-app purchases:** none


## Frequently asked questions

### Is JP Prefecture free?

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

### Is ディアビSST free?

ディアビSST is free to download, with no in-app purchases.

### Do JP Prefecture or ディアビSST have ads?

JP Prefecture shows ads; ディアビSST does not.

### Which is updated more often, JP Prefecture or ディアビSST?

JP Prefecture ships an update every 12 months, and ディアビSST daily. Most recently, JP Prefecture was updated on October 16, 2026 and ディアビSST on October 20, 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.*