VariantDoku: Variant Sudoku

VariantDoku: Variant Sudoku

Killer, Kropki & Logic Games

7 ratings
4 reviews
Free
In-App Purchases

Details

Released
May 7, 2026
Updated
October 29, 2026

Features

VariantDoku: Variant Sudoku screenshot #1 for iPhone
VariantDoku: Variant Sudoku screenshot #2 for iPhone
VariantDoku: Variant Sudoku screenshot #3 for iPhone
VariantDoku: Variant Sudoku screenshot #4 for iPhone
VariantDoku: Variant Sudoku screenshot #5 for iPhone
VariantDoku: Variant Sudoku screenshot #6 for iPhone
iphone
ipad
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About

This app offers a vast library of over 3,000 logic-based variant Sudoku puzzles, including Killer, Kropki, and zero-givens. It features interactive tutorials, advanced solving tools, and accessibility options like VoiceOver and color-blind support. Enjoy a pure logic experience with no ads or guessing required.

✓3,000+ variant and zero-givens puzzles
✓Logic-checked puzzles with single solutions
✓Daily puzzle with leaderboard
✓Interactive tutorials for all variants
✓Advanced solving tools (notes, colors, hints)
✓Accessibility features (VoiceOver, color-blind support)
✓Dark mode and calm interface
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+1

What's New in VariantDoku

1.4.2

October 29, 2026

• Chaos Construction puzzles • Bug fixes and improvements

3

Subscriptions & In-App Purchases

Variant+ Monthly

Unlimited puzzles & error checks. Cancel anytime.

$4.991 Month
7 Days trial
How to cancel VariantDoku subscription ⁉️

Events

Read more about Thermo Week

Thermo Week

Seven days of thermometer sudoku dailies

Nov 1, 2026 — Nov 8, 2026

Read more about Killer Week

Killer Week

Seven days of killer sudoku dailies

Oct 1, 2026 — Oct 8, 2026

User reviews

Great puzzle game

No ads. Tricky but solvable puzzles. Exactly what I was looking for.

Response from developer

Thank you! I'm glad you’re enjoying the challenging but solvable puzzles - and the ad-free experience!

Interested

I’m very like it

Response from developer

Thank you! I’m very glad you like the app!

Great mindbender

Was tired of regular sudoku and found this Variant puzzle. It’s a cool app to focus and detach. You have to solve it by the book, but the app gives you ZERO inputs to work with. It’s so satisfying once you get the hang of the mechanics, and moving up from 4x4 boards to 6x6 and higher just makes it way more addictive and engaging
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Response from developer

Thank you for the thoughtful review! I’m glad the variant puzzles gave you a fresh challenge and that progressing from 4×4 to larger boards feels so rewarding. Happy solving!

This app need some work

App looks nice. Puzzles are all the same computer generated stuff. It's obvious from the names alone. Each puzzle just mashes together a bunch of rules. You cannot select for specific rules to be left out. Nothing like logicmasters or CTC

Response from developer

Thanks for the feedback! The puzzles are created with the help of computational tools, which are also commonly used by puzzle setters for constructing and validating puzzles. I'm continuing to work on improving the variety of puzzles and would also like to offer more control over which rules are included.

FAQ

Does VariantDoku have ads?

No, VariantDoku is 100% ad-free, whether you use the free version or the paid Variant+ subscription. This ensures an uninterrupted, pure logic solving experience.

What types of variant Sudoku puzzles are available in VariantDoku?

VariantDoku features over 3,000 puzzles including Killer cages, Kropki dots, XV, thermos, arrows, renban, German whispers, palindromes, diagonals, anti-knight, and more. It also includes multi-constraint and zero-givens puzzles.

How does VariantDoku help new players learn variant Sudoku rules?

VariantDoku offers step-by-step interactive tutorials for every variant, starting from basic grids to complex mixed-constraint puzzles. The guided first-launch experience matches puzzles to your skill level.

What are the benefits of the Variant+ subscription?

Variant+ removes the hint limit, provides step-by-step explanations of logical deductions, offers unlimited puzzles, unlimited error checking, and enables offline library play. It is available as a monthly or annual subscription with a 7-day free trial.

Can VariantDoku be used offline?

Yes, the Variant+ subscription includes offline library play, allowing you to solve puzzles without an internet connection. The free version may require connectivity for certain features like the daily puzzle.

What accessibility features does VariantDoku offer?

VariantDoku supports VoiceOver for full board narration, allowing users to hear cell details and connections. It also includes color-blind support with distinct dash patterns for rule lines and respects Reduce Motion settings.

How often are new puzzles added to VariantDoku?

The app features a growing library of over 3,000 puzzles, with a new daily puzzle available for everyone. While specific update frequency for the library isn't detailed, the app is actively maintained with version 1.4.2 released on October 29, 2026.

What devices is VariantDoku compatible with?

VariantDoku is fully optimized for iPad in both portrait and landscape modes and also runs on Mac. It is available on iPhone and iPad devices.