# Prefectures vs OhbagAI

The clearest difference is update cadence: Prefectures at daily against OhbagAI's weekly. OhbagAI's advantage is iOS requirement (15.1 vs 18.0). 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.

Prefectures ships an update daily, OhbagAI weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Prefectures | OhbagAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Weekly |
| Size | 103 MB | 108 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Terran Kroft](https://appshunter.io/developer/1550589271) | [Archeco Inc](https://appshunter.io/developer/1462423330) |

## What reviewers say

### Prefectures

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

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

**In-app purchases:** none


### OhbagAI

[App page](https://appshunter.io/ios/app/ohbagai/id6768578146)

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Prefectures free?

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

### Is OhbagAI free?

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

### Do Prefectures or OhbagAI have ads?

Neither Prefectures nor OhbagAI shows ads.

### Which is updated more often, Prefectures or OhbagAI?

Prefectures ships an update daily, and OhbagAI weekly. Most recently, Prefectures was updated on October 24, 2026 and OhbagAI 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.*