# Sudoku (Oh No! Another One!)

> Symmetrical Sudoku puzzles with multiple difficulty levels and helpful tools. (iPhone/iPad app by Sonya Marcarelli.)

- Source: https://appshunter.io/ios/app/sudoku-oh-no-another-one/id421385004 (this page in markdown: same URL + `.md`)
- Developer: [Sonya Marcarelli](https://appshunter.io/developer/409702204)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free
- Rating: 4.50/5 from 46 App Store ratings · 86 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 29 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Russian, Chinese (Simplified, China), European Spanish
- Released: 2011-03-20
- Data updated: 2026-08-13
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-oh-no-another-one/id421385004/reviews.md

## What is Sudoku (Oh No! Another One!)?

Quick and funny!

- Symmetrical 
- 4 difficulty levels + daily Sudoku
- Notes, hints, undos
- Sudoku with colors  
- Send the pdf of your Sudoku by email 
- Advanced generation algorithm for a huge number of symmetric Sudoku
- Accessible with VoiceOver

## Key features

- Symmetrical Sudoku puzzles
- 4 difficulty levels
- Daily Sudoku challenge
- Notes, hints, and undos
- Sudoku with colors
- Send Sudoku as PDF
- VoiceOver accessibility

## Recent user reviews (10 of 86)

All indexed reviews: https://appshunter.io/ios/app/sudoku-oh-no-another-one/id421385004/reviews.md

### 5/5 — Хорошо

*2025-06-06*

На 2025 год все отлично работает. Игра хороша, удобна и визуально приятна. Рекламы нет вообще!

### 5/5 — Aplicativos com acessibilidade com o VoiceOver

*2021-12-11*

Meu nome é Vandy de São Paulo. Quero parabenizar a desenvolvedora Sonya Marcarelli pela inclusão dos deficientes visuais em seus aplicativos. Muitos jogos que eu achei que nunca mais iria jogar, encontrei nos aplicativos da Sonya. Mais uma vez, muito obrigada pela inclusão.

### 1/5 — Все испортили

*2021-02-22*

Последнее обновление испортило мою любимую игрушку. Пришлось удалить

### 3/5 — New bug

*2021-02-16*

The latest update causes the app to crash upon completion of the puzzle.

**Developer response:** Hi thank you for your review and for using my game. I fixed the bug in version 5.17.

### 1/5 — Судоку.

*2021-02-12*

Второй день вылетает. Последний ход и все закрывается.
Сегодня уже четвертый день, и ничего не изменилось.

**Developer response:** Привет, спасибо за обзор и за использование моей игры. Я исправил ошибку в версии 5.17.

### 4/5 — Вылетает

*2021-02-11*

Ошибка при вводе первой цифры на единицу (5 вместо 4, 7 вместо 6 и т. д.)
После последнего обновление приложение вылетает в конце игры.

**Developer response:** Привет, спасибо за обзор и за использование моей игры. Я исправил ошибки в версии 5.17.

### 3/5 — Ошибка

*2020-11-02*

Перестали обновляться задачи(.

### 3/5 — Quelques regrets

*2020-07-18*

Il serait plus logique la ligne A1 soit en haut. Demande beaucoup de manipulations pour écrire les chiffres à placer.

### 4/5 — Не умещается на ipad 2019

*2019-12-31*

Игрушка прекрасная, но не умещается на экране ipad 2019 iOS 13.3. Исправьте, пожалуйста.

### 5/5 — Outstanding accessibility!

*2019-12-30*

This app works great with VoiceOver and my braille display.  I like how it notes "given" or "conflict" next to a number, rather than depending on the color of the number to communicate its status.  The only suggestion I have is to make the announcement that it is solved automatic, as soon as the final number is in place.  The only way I have found to confirm it is by tapping one of the numbers below the board.

## Frequently asked questions about Sudoku (Oh No! Another One!)

### What is Sudoku (Oh No! Another One!)?

This application provides a Sudoku puzzle experience designed to be quick and fun. It features a large number of symmetrical Sudoku puzzles generated by an advanced algorithm, with options for different difficulty levels and a daily challenge.

### What are the key features of this Sudoku app?

Key features include symmetrical puzzle generation, four difficulty levels plus a daily Sudoku, tools like notes, hints, and undos, the ability to play with colors, and the option to send completed puzzles as PDFs via email. It also supports VoiceOver for accessibility.

### Is Sudoku (Oh No! Another One!) free to use?

Yes, the app is free to use. However, it does display advertisements as its monetization model.

### What devices is this Sudoku app compatible with?

While specific device compatibility isn't detailed, the app is designed for mobile use and mentions VoiceOver accessibility, suggesting compatibility with iOS devices that support this feature.

### Who would enjoy playing this Sudoku app?

Anyone who enjoys Sudoku puzzles, from beginners to experienced players, would find this app enjoyable. Its various difficulty levels, helpful tools, and accessibility features make it suitable for a wide range of users looking for a casual or challenging puzzle game.

## Version history (last 5 releases)

### 7.1 — 2025-09-22

Thanks for choosing Sudoku! This release includes stability and performance improvements.

### 7.0 — 2025-01-20

Thanks for choosing Sudoku! This release includes stability and performance improvements.

### 6.3 — 2024-10-09

Thanks for choosing Sudoku! This release includes stability and performance improvements.

### 6.2 — 2023-01-03

Bug fixes and stability improvements

### 6.1 — 2021-03-14

Fixed bugs for support of VoiceOver
Bug fixes and stability improvements

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## More apps by Sonya Marcarelli

- [Fifteen puzzle!](https://appshunter.io/ios/app/fifteen-puzzle/id409702201)
- [Scopa!](https://appshunter.io/ios/app/scopa/id455507367)
- [Tic Tac Toe: Another One!](https://appshunter.io/ios/app/tic-tac-toe-another-one/id474437657)
- [My Contraction Tracker](https://appshunter.io/ios/app/my-contraction-tracker/id524806308)
- [Briscola!](https://appshunter.io/ios/app/briscola/id536996823)

All apps by Sonya Marcarelli: https://appshunter.io/developer/409702204

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-13.*