Comparison

Sudoku Premium vs Sudoktor

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Sudoku Premium

This app offers a digital Sudoku experience with multiple difficulty levels and input modes. It features intelligent hints, auto-save, and unlimited undo/redo. Compete with others by submitting results and tracking progress online.

Highlights
  • 4 difficulty levels
  • 3 input modes
  • Pencil marks with auto fill
  • Highlighting options
  • Intelligent hints
  • Auto-save and unlimited undo/redo
  • Online progress tracking and competitions
Features
Read full description

The complete Sudoku, with no ads and nothing to buy – just you and the puzzle. Pick your challenge – Easy, Medium, Hard or Extreme – and solve with an interface that keeps every tool a tap away. Interrupted? Just leave: your puzzle is saved exactly as you left it. Want to see how you compare? Upload your results, check the top scores, or join the weekly Sudoku competition. Features: * 4 difficulty levels: Easy, Medium, Hard, Extreme * Custom mode: enter any puzzle and solve it in the same familiar interface * 3 input modes: "Digit first", "Cell first" or pop-up * Pencil marks (notes) with automatic fill and erase * Highlighting of the selected digit, plus crosshairs for the current row, column and box * Digit counts show how many of each digit are placed * Smart hints that use logic only – never guesses * Two levels of automatic error checking * Unlimited undo and redo * Night and Day modes * Auto-save * Plays offline – no internet needed to solve * Works on iPhone and iPad * Online results, top scores, history and real-time competitions Questions or suggestions? Contact us at sudoku@genina.com. Like us on Facebook: https://www.facebook.com/Genina-135806803144543 Follow us on X: @GeninaDotCom Or visit us online: http://www.genina.com/apps/sudoku/ Enjoy!

About

Sudoktor

This app assists in solving Sudoku puzzles, offering features to generate unlimited puzzles of varying difficulty, analyze existing ones, and provide detailed solving strategies. It allows manual puzzle entry and includes advanced tools for a deeper understanding of Sudoku mechanics.

Highlights
  • 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)
Features
Currently charting
Read full description

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

Screenshots

Sudoku Premium4 screens
Sudoktor4 screens

Verdict

The call

The clearest difference is rating: Sudoku Premium at 4.4 against Sudoktor's 3.0. Sudoku Premium also leads on review sentiment (89% vs 50%) and update cadence (every 2 months vs every 36 months). Sudoktor's advantage is price ($0.99 vs $4.99) and chart position (#192 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Sudoku Premium costs $4.99 and Sudoktor $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sudoku Premium holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: Sudoku Premium has 59 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 89% of Sudoku Premium's written reviews are positive against 50% of Sudoktor's.

UpkeepUpdate frequency

Sudoku Premium ships an update every 2 months, Sudoktor every 36 months. Both last shipped on October 29, 2026.

Scorecard7 real differences · 4 level
Sudoku Premium versus Sudoktor: the parameters behind the verdict, then further details
ParameterSudoku PremiumSudoktor
Price$4.99$0.99 — better
Rating4.4 (59 ratings) — better3.0 (6 ratings)
Positive reviews89.4% of reviews — better50.0% of reviews
Number of ratings59 — better6
Update frequencyEvery 2 months — betterEvery 36 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#192 — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.68.0 — better
Further details — not scored
Size11 MB2 MB
Age rating4+4+
Developergenina.comTablEdit

Customer experience

Sudoku Premium

All ratings58 ratings
Positive84.5%
Neutral5.2%
Negative10.3%
Written reviews265 reviews
Positive89.4%
Neutral3.4%
Negative7.2%

Sudoktor

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews8 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Sudoku Premium

Reported bugs

5 issues
  • Crashes when uploading scores
  • Buttons not working after completing puzzles
  • Incompatibility issues with latest iOS versions
  • Freezing and performance problems
  • Inconsistent behavior when entering numbers

Requested features

5 requests
  • Ability to lock cells
  • Pencil mark coloring
  • Undo/redo functionality in-game
  • More puzzle variety and regular updates
  • Seamless transition from free to premium

Sudoktor

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Sudoku Premium

No in-app purchases

None

Sudoktor

No in-app purchases

Questions

Is Sudoku Premium free?
Sudoku Premium costs $4.99, with no in-app purchases.
Is Sudoktor free?
Sudoktor costs $0.99, with no in-app purchases.
Which has better reviews, Sudoku Premium or Sudoktor?
Sudoku Premium is rated higher. Sudoku Premium averages 4.4 out of 5 from 59 ratings, while Sudoktor averages 3.0 from 6 ratings.
Do Sudoku Premium or Sudoktor have ads?
Neither Sudoku Premium nor Sudoktor shows ads.
Which is updated more often, Sudoku Premium or Sudoktor?
Sudoku Premium ships an update every 2 months, and Sudoktor every 36 months. Most recently, Sudoku Premium was updated on October 29, 2026 and Sudoktor on October 29, 2026.

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