# SUKOH vs Calc Ninja

The clearest difference is ads: SUKOH at none against Calc Ninja's shown. SUKOH also leads on device support (3 vs 1) and iOS requirement (9.1 vs 18.0). Calc Ninja's advantage is update cadence (monthly vs every 16 months). On price 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.

SUKOH ships an update every 16 months, Calc Ninja monthly. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SUKOH | Calc Ninja |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 16 months | **Monthly** |
| Size | 181 MB | 118 MB |
| Requires iOS | **9.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Takemi Matsumoto](https://appshunter.io/developer/570173509) | [kotaro yamada](https://appshunter.io/developer/1193903506) |

## What reviewers say

### SUKOH

[App page](https://appshunter.io/ios/app/sukoh/id1208511629)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calc Ninja

[App page](https://appshunter.io/ios/app/calc-ninja-mental-math-games/id6784948949)

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

**In-app purchases:** none


## Frequently asked questions

### Is SUKOH free?

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

### Is Calc Ninja free?

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

### Do SUKOH or Calc Ninja have ads?

Calc Ninja shows ads; SUKOH does not.

### Which is updated more often, SUKOH or Calc Ninja?

SUKOH ships an update every 16 months, and Calc Ninja monthly. Most recently, SUKOH was updated on October 26, 2026 and Calc Ninja on October 28, 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.*