# PlaySudoku.io vs Sudoku Note

The clearest difference is rating: PlaySudoku.io at 5.0 against Sudoku Note's 3.5. PlaySudoku.io also leads on in-app purchases (none vs 1) and iOS requirement (17.6 vs 26.0). Sudoku Note's advantage is update cadence (weekly vs monthly). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Sudoku Note sells 1 one-off in-app purchase. PlaySudoku.io asks for nothing beyond the download.

PlaySudoku.io holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

PlaySudoku.io ships an update monthly, Sudoku Note weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PlaySudoku.io | Sudoku Note |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/playsudokuio/id6738934774/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/sudoku-note/id6757120330/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 46 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alfredo Perry](https://appshunter.io/developer/1782998664) | [Eunjeong Im](https://appshunter.io/developer/1530216032) |

## What reviewers say

### PlaySudoku.io

[App page](https://appshunter.io/ios/app/playsudokuio/id6738934774)

Engage your mind with a classic Sudoku experience featuring customizable interfaces and multiple difficulty levels. This game offers auto-save and candidate number support for strategic play, perfect for daily mental exercise or quick gaming sessions.

**Highlights:** Three difficulty levels, Auto-save functionality, Candidate number support, Customizable interface, Intuitive controls, Built-in timer, Offline play

**Features:** macOS Compatibility

**In-app purchases:** none


### Sudoku Note

[App page](https://appshunter.io/ios/app/sudoku-note/id6757120330)

Enjoy Sudoku with a paper-like experience using your finger or Apple Pencil. This app features handwriting recognition for input and puzzles designed with step-by-step difficulty explanations.

**Highlights:** Handwritten number input, Apple Pencil support, Handwriting recognition, Step-by-step puzzle difficulty, Detailed solving technique explanations

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sudoku Note I | $3.99 | one-time |


## Frequently asked questions

### Is PlaySudoku.io free?

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

### Is Sudoku Note free?

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

### Which has better reviews, PlaySudoku.io or Sudoku Note?

PlaySudoku.io is rated higher. PlaySudoku.io averages 5.0 out of 5 from 1 ratings, while Sudoku Note averages 3.5 from 2 ratings.

### Do PlaySudoku.io or Sudoku Note have ads?

Neither PlaySudoku.io nor Sudoku Note shows ads.

### Which is updated more often, PlaySudoku.io or Sudoku Note?

PlaySudoku.io ships an update monthly, and Sudoku Note weekly. Most recently, PlaySudoku.io was updated on October 30, 2026 and Sudoku Note on October 31, 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.*