# s＊カルク vs KeisanReflex

The clearest difference is ads: s＊カルク at none against KeisanReflex's shown. s＊カルク also leads on iOS requirement (15.6 vs 17.0). 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.

## The numbers

| Metric | s＊カルク | KeisanReflex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | — |
| Size | 0 MB | 6 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seigo Mizouchi](https://appshunter.io/developer/1880010064) | [TOHRU HIRANO](https://appshunter.io/developer/1871149066) |

## What reviewers say

### s＊カルク

[App page](https://appshunter.io/ios/app/s/id6759860921)

**Features:** macOS Compatibility

**In-app purchases:** none


### KeisanReflex

[App page](https://appshunter.io/ios/app/keisanreflex/id6771355937)

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

**In-app purchases:** none


## Frequently asked questions

### Is s＊カルク free?

s＊カルク is free to download, with no in-app purchases.

### Is KeisanReflex free?

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

### Do s＊カルク or KeisanReflex have ads?

KeisanReflex shows ads; s＊カルク does not.

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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.*