# VariantDoku: Variant Sudoku — Killer, Kropki & Logic Games > Ad-free logic puzzle app with over 1,800 variant Sudoku puzzles and tutorials. (iPhone/iPad app by Uladzislau Artsemyeu.) - Source: https://appshunter.io/ios/app/variantdoku-variant-sudoku/id6763799102 (this page in markdown: same URL + `.md`) - Developer: [Uladzislau Artsemyeu](https://appshunter.io/developer/1853525975) - Category: Games, Board, Puzzle - Price: Free with in-app purchases - Rating: 4.20/5 from 5 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 13 MB - Languages: American English, Czech, French (France), German (Germany), Japanese, Korean, Polish, Russian, Chinese (Traditional, Taiwan), Ukrainian - Released: 2026-05-07 - Data updated: 2026-08-20 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/variantdoku-variant-sudoku/id6763799102/reviews.md ## What is VariantDoku? 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/ ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Variant+ Monthly | $4.99 | per month | | Variant+ Annual | $24.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Variant+ Lifetime | $39.99 | one-time | ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/variantdoku-variant-sudoku/id6763799102/reviews.md ### 5/5 — Interested *2026-08-15* I’m very like it ### 5/5 — Great mindbender *2026-08-15* 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 ### 2/5 — This app need some work *2026-08-12* 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 **Developer response:** 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. ## Frequently asked questions about VariantDoku ### 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. ## Version history (last 5 releases) ### 1.3.6 — 2026-08-14 • Stability and performance improvements ### 1.3.5 — 2026-08-03 • More reliable progress sync across iPhone, iPad, and Mac • Safer updates and progress recovery • Fixed cage rendering in imported and shared puzzles • Stability and performance improvements Thanks for playing VariantDoku! ### 1.3.4 — 2026-07-28 • Cloud sync across your devices • UI fixes Thanks for playing VariantDoku! ### 1.3.3 — 2026-07-13 Performance optimizations and bug fixes. Thanks for playing VariantDoku! ### 1.3.2 — 2026-06-26 • New 6×6 daily leaderboard • Performance improvements & bug fixes Thanks for playing VariantDoku! ## Related topics [variant sudoku](https://appshunter.io/ios/topics/variant-sudoku) --- *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 2026-08-20.*