# けいさんかけっこ vs ACS2学生

The clearest difference is update cadence: ACS2学生 at every 9 days against けいさんかけっこ's every 2 months. けいさんかけっこ's advantage is iOS requirement (15.6 vs 17.6). 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.

けいさんかけっこ ships an update every 2 months, ACS2学生 every 9 days. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | けいさんかけっこ | ACS2学生 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 54 MB | 11 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [株式会社ハートビートシステムズ](https://appshunter.io/developer/1603550669) | [ホクコウ](https://appshunter.io/developer/1286975653) |

## What reviewers say

### けいさんかけっこ

[App page](https://appshunter.io/ios/app/id6444204289)

**Features:** macOS Compatibility

**In-app purchases:** none


### ACS2学生

[App page](https://appshunter.io/ios/app/acs2/id6751188596)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is けいさんかけっこ free?

けいさんかけっこ is free to download, with no in-app purchases.

### Is ACS2学生 free?

ACS2学生 is free to download, with no in-app purchases.

### Do けいさんかけっこ or ACS2学生 have ads?

Neither けいさんかけっこ nor ACS2学生 shows ads.

### Which is updated more often, けいさんかけっこ or ACS2学生?

けいさんかけっこ ships an update every 2 months, and ACS2学生 every 9 days. Most recently, けいさんかけっこ was updated on September 17, 2026 and ACS2学生 on September 21, 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.*