# Iodoku vs Sudoku Tutor

The clearest difference is in-app purchases: Sudoku Tutor at none against Iodoku's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Iodoku sells 2 one-off in-app purchases. Sudoku Tutor asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Iodoku | Sudoku Tutor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iodoku/id6753880944/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 13 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Seppi](https://appshunter.io/developer/1845444357) | [Kenichi Nakagawa](https://appshunter.io/developer/1831663034) |

## What reviewers say

### Iodoku

[App page](https://appshunter.io/ios/app/iodoku/id6753880944)

This intelligent Sudoku app adapts to your skill level with AI-powered puzzles and a personal coach. Learn advanced techniques, track your progress, and enjoy a clean, customizable interface. Offers both free and premium experiences.

**Highlights:** 9 Difficulty Levels, AI-Powered Puzzle Generation, Personal AI Coach, Adaptive Difficulty, Interactive Tutorial, Detailed Statistics, Customizable Themes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Iodoku Premium (Lifetime) | $4.99 | one-time |
| Premium Lifetime | $9.99 | one-time |


### Sudoku Tutor

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Iodoku free?

Iodoku is free to download, with in-app purchases available.

### Is Sudoku Tutor free?

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

### Do Iodoku or Sudoku Tutor have ads?

Both Iodoku and Sudoku Tutor show ads.

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

Iodoku ships an update every 3 weeks, and Sudoku Tutor every 3 weeks. Most recently, Iodoku was updated on October 2, 2026 and Sudoku Tutor on September 30, 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.*