VariantDoku: Variant Sudoku

VariantDoku: Variant Sudoku

Killer, Kropki & Logic Games

6 ratings
4 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • May 7, 2026
  • September 30, 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 1,800 logic puzzles, including various Sudoku variants. It features interactive tutorials for learning new puzzle types and tools to aid in solving without guesswork. Enjoy a calm, ad-free experience with progress tracking and customizable interface options.

✓1,800+ variant and zero-givens puzzles
✓Logic-checked puzzles with unique solutions
✓Daily puzzle with leaderboard
✓Interactive tutorials for all variants
✓Advanced solving tools (notes, colors, symbols)
✓Progress tracking and streaks
✓Dark mode and calm interface
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What's New in VariantDoku

1.4.0

September 30, 2026

• Achievements: 22 to collect, from your first solve to 30-day streaks, synced with Game Center • Daily Champion: finish a day at #1 on the 4×4 or 6×6 daily leaderboard • Themed weeks: the first 7 days of every month, both daily puzzles use one rule. October is Killer Week! • Bug fixes and improvements

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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 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 completely ad-free, whether you use the free version or the paid Variant+ subscription. The developers emphasize a pure-logic, distraction-free solving experience.

What types of Sudoku variants are available in VariantDoku?

VariantDoku features over 1,800 puzzles including killer cages, thermos, kropki dots, XV, arrows, renban, German whispers, palindromes, diagonals, and anti-knight variants, among others.

How does VariantDoku help new players learn?

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

Can I play VariantDoku offline?

Offline play is available for puzzles imported into your Library with the Variant+ subscription. The free daily puzzle requires an internet connection to download.

What are the subscription options for VariantDoku?

Variant+ offers monthly ($4.99/month) and annual ($24.99/year) plans, both including a 7-day free trial. Subscriptions unlock unlimited puzzles, unlimited error checking, and offline Library play.

How often are new puzzles added to VariantDoku?

The app provides a new puzzle daily for everyone. The library already contains over 1,800 puzzles, with ongoing additions to the growing collection of variant and zero-givens puzzles.

What devices does VariantDoku support?

VariantDoku is fully optimized for both iPhone and iPad, supporting portrait and landscape orientations on iPads. The interface is designed for long sessions and includes a dark mode.

What is the age rating for VariantDoku?

VariantDoku has an age rating of 4+, making it suitable for a wide range of players interested in logic and puzzle-solving games.