Supported Features
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VoiceOver
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Larger Text
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Dark Interface
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Sufficient Contrast
VariantDoku: Variant Sudoku
Killer, Kropki & Logic Games
Free · In‑App Purchases · Designed for iPad
Master 1,800+ variant sudoku puzzles with smart step-by-step hints, daily challenges, cloud sync, and no ads. Killer, Kropki, Thermo & more.
No ads. No guessing. Just pure-logic variant sudoku.
VariantDoku is built for solvers who want more than one daily grid — a growing library of 1,800+ variant and zero-givens puzzles, every one verified to have a single solution reachable by logic alone. No ads, ever — free or paid.
WHY SOLVERS STAY
- 1,800+ variant & zero-givens puzzles: killer cages, thermos, kropki dots, XV, arrows, renban, German whispers, palindromes, diagonals, anti-knight, and more
- Every puzzle is logic-checked: one unique solution, no guessing required
- A new daily puzzle, free for everyone — compare solve times on the daily leaderboard
- Home-screen widget keeps today's puzzle one tap away
- Audio narration reads the rules and tutorial steps aloud — listen while you study the grid
LEARN ANY VARIANT
- Step-by-step interactive tutorials for every variant, from your first 4x4 grid to mixed-constraint puzzles
- A guided first-launch experience matches puzzles to your level — you're never thrown into the deep end
- Already sharp? Skip straight to the expert grids
TOOLS THAT RESPECT YOUR SOLVE
- Candidate notes, corner marks, colors, and symbols for advanced solving
- Error checking and gentle hints — only when you ask
- Import puzzle links straight into your Library
- Search and filters by difficulty, grid size, and constraint type
- Streaks and solve history to track your progress
- Dark mode and a calm interface designed for long sessions
- Fully optimized for iPad in portrait and landscape
HINTS THAT COACH, NOT ANSWER
- Every hint names the next logical step — Hidden Single, X-Wing, W-Wing, Simple Coloring, Forcing Chain — and highlights the cells it depends on
- It reads the pencil marks you already made and builds on them
- It never reveals a digit that isn't logically deduced; when the logic only rules candidates out, it shows you that instead of handing you a number
THE VARIANTS LIST
Classic Sudoku, Killer Sudoku, Kropki, XV, Thermo, German Whispers, Renban, Palindrome, Between Lines, Lockout Lines, Region Sum Lines, Arrow Sudoku, Diagonal (Sudoku X), Anti-Knight, Anti-King — plus multi-constraint puzzles that combine several on one board, and zero-givens puzzles solved entirely from the variant rules.
Variant+ unlocks unlimited puzzles, unlimited error checking, and offline Library play. The app stays 100% ad-free — free or paid.
Whether you're learning your first killer cage or chasing your hundredth zero-givens solve, VariantDoku is a calm place to practice and improve.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
• Stability and performance improvements
The developer, Uladzislau Artsemyeu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Search History
- Usage Data
- Diagnostics
- Other Data
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Uladzislau Artsemyeu
- Size
- 14 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 9 more
- English, Czech, French, German, Japanese, Korean, Polish, Russian, Traditional Chinese, Ukrainian
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Variant+ Monthly $4.99
- Variant+ Annual $24.99
- Variant+ Lifetime $39.99
- Copyright
- © 2026 Uladzislau Artsemyeu
