# 星　〜囲碁 星の定石〜 vs iサン吉くん

The clearest difference is update cadence: 星　〜囲碁 星の定石〜 at every 2 months against iサン吉くん's every 33 months. 星　〜囲碁 星の定石〜 also leads on device support (3 vs 1) and iOS requirement (10.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

星　〜囲碁 星の定石〜 ships an update every 2 months, iサン吉くん every 33 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 星　〜囲碁 星の定石〜 | iサン吉くん |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 33 months |
| Size | 20 MB | 5 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [masashi kamiyama](https://appshunter.io/developer/1137427176) | [morio ota](https://appshunter.io/developer/1639966243) |

## What reviewers say

### 星　〜囲碁 星の定石〜

[App page](https://appshunter.io/ios/app/id1230462153)

**Features:** macOS Compatibility

**In-app purchases:** none


### iサン吉くん

[App page](https://appshunter.io/ios/app/i/id1639966241)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 星　〜囲碁 星の定石〜 free?

星　〜囲碁 星の定石〜 is free to download, with no in-app purchases.

### Is iサン吉くん free?

iサン吉くん is free to download, with no in-app purchases.

### Do 星　〜囲碁 星の定石〜 or iサン吉くん have ads?

Neither 星　〜囲碁 星の定石〜 nor iサン吉くん shows ads.

### Which is updated more often, 星　〜囲碁 星の定石〜 or iサン吉くん?

星　〜囲碁 星の定石〜 ships an update every 2 months, and iサン吉くん every 33 months. Most recently, 星　〜囲碁 星の定石〜 was updated on November 2, 2026 and iサン吉くん on November 3, 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.*