# Sudoku Tutor vs Sudoku Scanner

The clearest difference is ads: Sudoku Scanner at none against Sudoku Tutor's shown. Sudoku Scanner also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (13.0 vs 17.6). 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.

Sudoku Tutor ships an update every 3 weeks, Sudoku Scanner every 4 days. The most recent releases landed on November 9, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sudoku Tutor | Sudoku Scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 13 MB | 40 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kenichi Nakagawa](https://appshunter.io/developer/1831663034) | [TECH MOON, K.K.](https://appshunter.io/developer/6781580223) |

## What reviewers say

### Sudoku Tutor

[App page](https://appshunter.io/ios/app/sudoku-tutor-camera-solver/id6755796331)

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

**In-app purchases:** none


### Sudoku Scanner

[App page](https://appshunter.io/ios/app/sudoku-scanner-snapdoku/id6781580221)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Tutor free?

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

### Is Sudoku Scanner free?

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

### Do Sudoku Tutor or Sudoku Scanner have ads?

Sudoku Tutor shows ads; Sudoku Scanner does not.

### Which is updated more often, Sudoku Tutor or Sudoku Scanner?

Sudoku Tutor ships an update every 3 weeks, and Sudoku Scanner every 4 days. Most recently, Sudoku Tutor was updated on November 9, 2026 and Sudoku Scanner on October 25, 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.*