# AR Isawa Castle vs AR芥川城

The clearest difference is update cadence: AR芥川城 at fortnightly against AR Isawa Castle's every 18 months. AR芥川城 also leads on iOS requirement (12.0 vs 15.0). 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.

AR Isawa Castle ships an update every 18 months, AR芥川城 fortnightly. The most recent releases landed on October 26, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | AR Isawa Castle | AR芥川城 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Fortnightly** |
| Size | 209 MB | 118 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [xeen](https://appshunter.io/developer/334646799) | [USAC SYSTEM CO.,LTD.](https://appshunter.io/developer/409320431) |

## What reviewers say

### AR Isawa Castle

[App page](https://appshunter.io/ios/app/ar-isawa-castle/id1455614446)

**In-app purchases:** none


### AR芥川城

[App page](https://appshunter.io/ios/app/ar/id6446186281)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AR Isawa Castle free?

AR Isawa Castle is free to download, with no in-app purchases.

### Is AR芥川城 free?

AR芥川城 is free to download, with no in-app purchases.

### Do AR Isawa Castle or AR芥川城 have ads?

Neither AR Isawa Castle nor AR芥川城 shows ads.

### Which is updated more often, AR Isawa Castle or AR芥川城?

AR Isawa Castle ships an update every 18 months, and AR芥川城 fortnightly. Most recently, AR Isawa Castle was updated on October 26, 2026 and AR芥川城 on October 15, 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.*