# WatchSudoku — Play 9x9 Sudoku on your wrist!

> Smartwatch Sudoku game with touch and digital crown controls. (iPhone/iPad app by John Tran.)

- Source: https://appshunter.io/ios/app/watchsudoku/id1535627577 (this page in markdown: same URL + `.md`)
- Developer: [John Tran](https://appshunter.io/developer/1054736625)
- Category: Games, Entertainment, Puzzle, Trivia
- Price: $0.99
- Rating: 4.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 1 MB
- Languages: English
- Released: 2020-10-20
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/watchsudoku/id1535627577/reviews.md

## What is WatchSudoku?

Full 9x9 Sudoku controlled via touch and digital crown.
Touch control is intuitiv to understand. Change the number with the digital crown. 
Sudoku is a number puzzle where the objective is to fill every row, column and box (3x3 grid) with the numbers from 1-9. Each unit (row, column or box) must have each number exactly once. The game starts with a number of fields pre-filled. Your objective is to fill the rest of the fields without breaking the constraints that each number can only be once in each row, column and box.

## Key features

- 9x9 Sudoku puzzles
- Touch controls
- Digital crown number selection
- Classic number puzzle gameplay
- Designed for smartwatches

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/watchsudoku/id1535627577/reviews.md

### 2/5 — Watch returns to watch face

*2022-10-19*

Game goes into sleep mode during game on watch ultra

### 4/5 — Issue appears fixed now. There is a flaw in the algorithm

*2021-08-22, version 1.2*

Seems to be fixed now and working as expected. 

I've noticed a flaw in the game where on some boards a number is repeated in a sequence it shouldn't be rendering that boasts unsolvable. I clicked the app support link but it takes me to a non-existent page.

**Developer response:** Hi, thank you for the review. I fixed this problem with the next version which is currently in the app store review process. My details are also updated, so you can contact me in case. I hope you still enjoy the app.

## Frequently asked questions about WatchSudoku

### What is WatchSudoku?

WatchSudoku is a 9x9 Sudoku puzzle game specifically designed for smartwatches. It allows you to play the classic number-filling game using touch and the digital crown for input.

### How do I play WatchSudoku?

You fill in rows, columns, and 3x3 boxes with numbers 1-9, ensuring each number appears only once in each unit. Touch controls are intuitive, and the digital crown is used to select numbers.

### What devices does WatchSudoku support?

WatchSudoku is supported on Apple Watch, iPhone, and iPod devices, offering a portable puzzle experience across multiple Apple products.

### How much does WatchSudoku cost?

WatchSudoku is a paid application, available for $0.99. This one-time purchase grants you access to the full game without any additional costs.

### Does WatchSudoku have ads?

No, WatchSudoku does not contain advertisements. As a paid app, it offers an uninterrupted gaming experience without any ad interruptions.

### What is the age rating for WatchSudoku?

WatchSudoku has an age rating of 4+, making it suitable for a wide range of players, including younger individuals interested in logic puzzles.

### When was WatchSudoku last updated?

The latest version of WatchSudoku, version 1.3, was last updated on January 4, 2022. This indicates a stable release with potential for future improvements.

### Can I play WatchSudoku offline?

While not explicitly stated, Sudoku games typically do not require an internet connection to play. You can likely enjoy WatchSudoku offline on your supported devices.

## Version history (last 4 releases)

### 1.3 — 2022-01-04

Added a requested feature, where you can delete a selected number. Just long press on that number you want to revert.

### 1.2 — 2021-06-20

- Fixed a problem, when sometime unsolvable puzzles are generated (same numbers occur in a line or a box)

### 1.1 — 2020-11-02

-  Touchcontrol improvement when selecting a number to change the value.

### 1.0 — 2020-10-20

No release notes.

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## More apps by John Tran

- [WatchSnake](https://appshunter.io/ios/app/watchsnake/id1535904860)
- [ChessOn](https://appshunter.io/ios/app/chesson/id1535993963)
- [WatchMahjong](https://appshunter.io/ios/app/watchmahjong/id1538388799)
- [Towers of Hanoi -on your Wrist](https://appshunter.io/ios/app/towers-of-hanoi-on-your-wrist/id1542027254)
- [Minesweeper (on your wrist)](https://appshunter.io/ios/app/minesweeper-on-your-wrist/id1543603182)

All apps by John Tran: https://appshunter.io/developer/1054736625

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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 2026-06-10.*