# Sudoktor — the Sudoku doctor

> Sudoku solver and generator with advanced analysis tools. (iPhone/iPad app by TablEdit.)

- Source: https://appshunter.io/ios/app/sudoktor/id673673295 (this page in markdown: same URL + `.md`)
- Developer: [TablEdit](https://appshunter.io/developer/492060416)
- Category: Games, Board, Puzzle
- Price: $0.99
- Rating: 3.00/5 from 6 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 2 MB
- Languages: American English, French (France), German (Germany)
- Released: 2013-07-20
- Data updated: 2026-09-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/sudoktor/id673673295/reviews.md

## What is Sudoktor?

Sudoktor is a Sudoku solving assistant. It helps you to solve and understand Sudoku puzzles but it can also be used to create and solve unlimited Sudoku puzzles.
See the support page for more details and screenshots. 
App's key features:
- generates valid 9x9 sudoku puzzles of any choosen level (from easy to fiendish)
- allows to rate objectively the difficulty of the current puzzle
- allows to enter to enter standard 9x9 Sudokus manually or by copy-and-paste
- offers an intuitive and quick entry method
- shows or hides pencil marks, updates them automatically
- full Undo/Redo feature
- offers advanced analysis on demand:
  - candidates
  - wrong values
  - solution
  - subsets, grid analysis, forcing chains, almost locked subsets...
  - ability to save and to reopen the games

## Key features

- Generates unlimited Sudoku puzzles
- Rates puzzle difficulty
- Manual puzzle entry and copy-paste
- Automatic pencil mark updates
- Full Undo/Redo functionality
- Advanced analysis (candidates, subsets, chains)

## Chart rankings

- #189 in Top Paid · Board (US App Store)

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/sudoktor/id673673295/reviews.md

### 1/5 — Disappointed

*2026-03-13*

There is no option to write you own pencil mark.  You should make a video to show how to use it as it’s not user friendly

**Developer response:** Of course, you can enter your own pencil marks.  It's the first button on the right in the top row There's also a built-in help feature (the info button).

### 1/5 — Won’t work

*2023-08-10*

Should have read the reviews. Do not purchase, there is no way to get a refund.

**Developer response:** I don't know why you wanted to be reimbursed for your $0.99 investment. I guess it's the crash problem when you create a new random puzzle on latest versions of iOS. This problem is corrected in the current version (1.4). I agree with you that an app that crashes systematically should be reimbursed but I'm not responsible of Apple's refund policies.

### 1/5 — Total bust

*2023-02-27*

Unusable. Can’t tell if it is good or bad. Could not get that far. Locks up 100% of the time after just a few button pushes on latest iOS devices. Tried it on two iPads, Mini and Gen-3 12.9 inch. Same thing.

**Developer response:** Sudoktor worked without a hitch with earlier versions of iOS. But for at least a year now, it's been crashing when you want to create a new random puzzle. This is fixed in version 1.4.

### 1/5 — Non functioning app

*2022-02-05*

Constantly freezes. Hope they can refund the money.

**Developer response:** It is strange. I have never seen Sudoktor freeze or crash. Could you send me a screenshot of when this happens?

### 5/5 — Different in a good way

*2021-02-22*

I have reached the point in my Sudoku journey where a lot of puzzles are not quite hard enough. Sudoktor has fiendish puzzles which are challenging enough for me. 

I like that Sudoktor will calculate and continuously update possible candidates for me, I can do this for myself but honestly it's a tedious unchallenging part of solving a puzzle.

One element of Sudoktor which as far as I am aware is unique, is the user interface it uses when entering either your guess or a pencil mark. You select the cell you want to work with and the display pops up a larger square containing the values that you may choose. The really clever part of this is that it represents pencil marks as small digits and guesses as large digits. This feature has once and for all ended the problem of accidentally entering a guess instead of a pencil mark because it is obvious which you are about to do.

I also like very much the ability to import and export puzzles, other apps have this but Sudoktor seems to go one step further and allow many options for import and export format.

The analysis feature is interesting, it's not just on or off, you can select the type(s) of analysis that you want the program to use. I find ths helpful as a learning aid when stuck. The display shows exactly what your next move should be and more importantly shows you why. You can see the explanation on the actual puzzle you are working on.

All in all Sudoktor is a step ahead of any other Sudoku app I have seen.

**Developer response:** I should have thanked you sooner for this review.

### 5/5 — This is EXACTLY THE LAYOUT I WANTED!!!

*2020-11-07*

I remember making a “map” of sudoku puzzles just like the layout of this app where the immediate possibilities are shown for the the yet unknown positions probably 15 years ago when I had time to kill and absolutely HAD to solve the sudoku in the paper! And it doesn’t seem to appear in other apps! The input is simple but powerful in that you can put in a series of numbers and it reads it like a charm! I made a mistake in my first input and how the program reformats the raw number input is beautiful in its simplicity without needing to go in and out of input boxes and how it can reformat it into a very readable layout is fabulous! I haven’t tried out turning off analysis mode features mentioned in the other review, but turning off where it makes the correct answer red makes it maybe a bit too easy. I do like where it highlights the boxes in yellow though. I’m a programmer myself and I appreciate good engineering and this is pretty fabulous!

**Developer response:** Thank you for taking the time to make such a detailed comment. Much appreciated. If you like Sudoktor, you're going to love Duplikat ;-)

### 5/5 — A Whole New Game

*2019-07-22*

I’ve been enjoying sudoku on my iPhone for several years now and never seem to tire of playing. I downloaded Sudoktor after finding a puzzle in a magazine I wanted to tackle, because my original app does not allow me to enter a puzzle myself. This app is very powerful, but still allows you to control just how much help you want. You can “go it alone” or ask for guidance. This has encouraged me to learn more about the complex logic behind eliminating incorrect candidates. It’s like discovering a whole new game.

**Developer response:** Thank you for this nice comment. Much appreciated.

### 5/5 — Reservė aux experts

*2014-05-03*

Sudoktor est  capable de résoudre par logique des grilles extrêmement difficiles et montre le raisonnement. Dommage que les explications données ne soient pas toujours limpides quand il utilise des techniques avancées.

## Frequently asked questions about Sudoktor

### What is Sudoktor?

Sudoktor is a Sudoku solving assistant that helps users solve and understand Sudoku puzzles. It can also be used to create and solve an unlimited number of puzzles.

### How much does Sudoktor cost?

Sudoktor is a paid app and costs $0.99. There are no in-app purchases or subscriptions required.

### Does Sudoktor have ads?

No, Sudoktor does not contain advertisements. It is a completely ad-free experience.

### What devices is Sudoktor available on?

Sudoktor is available for iPhone and iPod devices. It is not currently listed for Android or other platforms.

### How often is Sudoktor updated?

The latest version of Sudoktor is 1.4, last updated on September 29, 2023. This indicates relatively infrequent but recent updates.

### What age rating is Sudoktor?

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

### Can Sudoktor help me learn Sudoku strategies?

Yes, Sudoktor offers advanced analysis features such as candidates, wrong values, subsets, and forcing chains, which can help users understand and learn Sudoku strategies.

### What is the user sentiment for Sudoktor based on ratings?

Sudoktor has an average rating of 3.0 stars from 6 ratings. This suggests a mixed to moderate user reception.

## Version history (last 5 releases)

### 1.4 — 2023-09-29

- it is now possible to save the games, including their pencil marks
- the crash when creating a new random game or rating an existing game has been fixed

### 1.3 — 2019-08-27

- Bug fix: the Options window now allows to remove analysis options.

### 1.2 — 2016-10-07

- French and German localizations
- Tooltips

### 1.1 — 2013-10-14

- export to PDF then send the file per e-mail, print it or open it in another app,
- new button to show the strong chains

### 1.0 — 2013-07-20

No release notes.

## Apps similar to Sudoktor

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Clean Sudoku - Play and Solve](https://appshunter.io/ios/app/clean-sudoku-play-and-solve/id6472871294) | — | Free | Games |
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| [Viva Sudoku:Free Puzzle Master](https://appshunter.io/ios/app/viva-sudokufree-puzzle-master/id6730115448) | 5.0 (1) | Free | Games |
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| [Sudoku Craft](https://appshunter.io/ios/app/sudoku-craft/id6461118987) | — | Free | Games |
| [Sudoku Solver - Puzzle Game](https://appshunter.io/ios/app/sudoku-solver-puzzle-game/id1618814060) | — | Free | Games |

## More apps by TablEdit

- [TEFview](https://appshunter.io/ios/app/tefview/id492060413)
- [TEFpad](https://appshunter.io/ios/app/tefpad/id517830471)
- [Duplikat](https://appshunter.io/ios/app/duplikat/id1281728394)

All apps by TablEdit: https://appshunter.io/developer/492060416

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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 2026-09-01.*