# Pro:Sudoku — Play Sudoku with Apple Pencil

> Sudoku game with Apple Pencil, solver, puzzle creation, and challenges. (iPhone/iPad app by Bruno Philipe Resende Silva.)

- Source: https://appshunter.io/ios/app/prosudoku/id1537203265 (this page in markdown: same URL + `.md`)
- Developer: [Bruno Philipe Resende Silva](https://appshunter.io/developer/605892017)
- Category: Games, Entertainment, Puzzle, Strategy
- Price: $4.99
- Rating: 3.50/5 from 2 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 4 MB
- Languages: American English
- Released: 2021-02-21
- Data updated: 2026-08-13
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/prosudoku/id1537203265/reviews.md

## What is Pro?

Pro:Sudoku is a fresh take on the traditional Sudoku game. This doesn't mean this app is just yet another Sudoku app. Pro:Sudoku brings powerful features to make your Sudoku puzzling even more fun and entertaining. Some of the features include:

* Support for Apple Pencil: Draw your numbers with Apple Pencil on iPad just like with Pen on Paper. Need to correct a mistake? Just draw an X over the number you want to remove and it will be gone. It's that easy! This feature is powered by handwriting recognition done with on-device intelligence, which means no data is taken anywhere to be processed. Plus you can play with Pro:Sudoku from anywhere, even with no connectivity. You can also input and clear pencil notes in your cells.

* Keyboard support: If you prefer to play with keyboard and trackpad on iPad, you can do it with Pro:Sudoku.

* Step-by-Step Solver: Got stuck with a puzzle? Pro:Sudoku comes with a solver to help you move ahead. The solver will also explain why that step can be taken, to help you understand advanced solving techniques. (Note that "diabolical"-level techniques are not yet supported.)

* Puzzle Author mode: So you can create your own puzzles and share them with friends.

* Full undo/redo support, including for changes made by the solver.

* Zen mode: Tap on the chevron next to the puzzle board to move the on-screen controls completely out of view. This option lets you focus entirely on your puzzle when playing with Apple Pencil.

* Light & Dark: Pro:Sudoku respects your system light/dark setting to make sure your puzzle solving always matches your current environment.

* Gameplay Options: Tap on a cell in the puzzle board to have Pro:Sudoku highlight other cells according to your options: You can change whether cells in the same column/row/group, or cells with the same number are highlighted. You can also set whether Pro:Sudoku should highlight mistakes or let you figure them out by yourself. You can also change the color used for numbers drawn in with Apple Pencil or placed with the on-screen controls.

* Challenges: Puzzles created by the famous Finnish mathematician and Sudoku puzzle creator Arto Inkala are included with Pro:Sudoku, so you can test your puzzle solving skills against the hardest known puzzles.¹

No Apple Pencil? You can still play with the on-screen controls on iPad, iPhone, and iPod touch, or even mix pencil-drawn strokes and numbers placed with controls on iPad.

Pro:Sudoku is under active development and even more exciting features will be unveiled soon.

¹ Arto Inkala's puzzles are used under permission.

## Key features

- Apple Pencil drawing and input
- Step-by-step solver with explanations
- Puzzle author mode for creation
- Zen mode for distraction-free play
- Light & Dark mode support
- Gameplay customization options
- Includes puzzles by Arto Inkala

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/prosudoku/id1537203265/reviews.md

### 3/5 — Great Sudoku using Apple pencil

*2021-10-14*

This is an amazing Sudoku that allows you to use the Apple pencil somewhat naturally. I would rate this 5 star if but for two major things:

1. When using the pencil - it can often misread if the numbers are not recognized or when crossing out a number, it will empty the whole cell instead of the one pencil mark. It can be a little frustrating at times. This needs to be made more smoother and accurate.

2. The Next Step Solver tips is crap. It will give me tips to the next step by actually undoing what I’ve done and adding in the number and then telling me to remove it as the next step. At first I thought I was crazy thinking I thought I had removed that pencil mark but upon closer inspection I noticed it was actually putting it back in and suggesting I remove it. CRAZY!!! What kind of stupidity is that. So that is a major major mark against the app.

### 5/5 — I might be in love

*2021-05-15*

I’ve searched for a long time for a sudoku app on my iPad that I can use my Apple Pencil with to actually write in my numbers... this one is by far the best app I’ve tried. Costs no more than a paperback sudoku book does, and it is well worth the price. Took a few minutes to get used to writing on it, but whomever was in charge of creating the writing recognition program is a genius. It does an amazing job. I would definitely recommend purchasing it!

### 3/5 — Apple Pencil problems

*2021-03-07*

The app has a hard time recognizing characters I write very neatly and follow recommendations for using applepencil but still it removes characters and counts correct figures as mistakes.

### 5/5 — Perfect !

*2021-02-23*

This the best Sudoku app i’ve tried.

Nice design with native iOS ui.

## Frequently asked questions about Pro

### What makes Pro:Sudoku different from other Sudoku apps?

Pro:Sudoku stands out with its Apple Pencil support for intuitive number drawing and correction, a step-by-step solver that explains techniques, and a puzzle author mode for creating and sharing your own challenges.

### Can I play Pro:Sudoku without an Apple Pencil?

Yes, you can play Pro:Sudoku using on-screen controls on iPad, iPhone, and iPod touch. You can also mix pencil-drawn strokes with numbers placed via controls on iPad.

### Does Pro:Sudoku have ads?

No, Pro:Sudoku is ad-free, allowing for an uninterrupted puzzling experience.

### What devices is Pro:Sudoku available on?

Pro:Sudoku is available on iPhone, iPad, and iPod touch devices.

### How much does Pro:Sudoku cost?

Pro:Sudoku is a paid app, priced at $4.99.

### Does Pro:Sudoku offer offline play?

Yes, the handwriting recognition for Apple Pencil is done with on-device intelligence, meaning you can play Pro:Sudoku from anywhere, even without an internet connection.

### What is the age rating for Pro:Sudoku?

Pro:Sudoku has an age rating of 4+, making it suitable for a wide range of players.

### How often is Pro:Sudoku updated?

Pro:Sudoku was last updated on April 29, 2021, and is under active development with more features planned for future releases.

## Version history (last 2 releases)

### 1.0.1 — 2021-04-29

Fixed issue with controls pane getting clipped on smaller iPads
Fixed issue with "game menu" button being clipped on certain layouts

### 1.0 — 2021-02-21

No release notes.

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## More apps by Bruno Philipe Resende Silva

- [x2048](https://appshunter.io/ios/app/x2048/id906723703)
- [Is It Down? – Uptime Checker Widget](https://appshunter.io/ios/app/is-it-down-uptime-checker-widget/id921001850)
- [Kodex](https://appshunter.io/ios/app/kodex/id1038574481)

All apps by Bruno Philipe Resende Silva: https://appshunter.io/developer/605892017

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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.*