Launching today

Sudoku Custom
The Sudoku app that teaches you how to think
1 follower
The Sudoku app that teaches you how to think
1 follower
Free Sudoku solver: 30+ technique tutorials with step-by-step demos, tens of thousands of puzzles (7 difficulty levels), photo recognition (high accuracy, fast scan), powerful solver (solves world's hardest Sudoku), global leaderboard, specialized training, customizable theme & board. Learn X-Wing, Swordfish, ALS, Forcing Chains.



Hey Product Hunt! 👋
I'm an avid Sudoku player, and I was frustrated that most Sudoku apps
just give you puzzles — but never explain WHY a move works.
So I built Sudoku Custom. The goal was simple: help players actually
understand the logic, not just guess their way through.
Here's what we offer:
🔍 Smart Solver — Import any puzzle, get step-by-step solutions with
full technique explanations. No ads.
📖 30+ Techniques — From Single Candidate to ALS and Forcing Chains,
every technique has visual demos and interactive examples.
🎮 10,000+ Puzzles — 7 difficulty levels, daily challenges, and a
global leaderboard to compete worldwide.
📷 Photo Recognition — Snap a puzzle from a newspaper or magazine and
import it instantly with high accuracy.
🎯 Specialized Training — Target specific techniques to level up faster.
⚙️ Fully Customizable — Theme colors, board styles, operation settings
and more, tailored to your preference.
🏆 Track Your Stats — Save puzzles to your library, monitor your
solving statistics, and climb the global leaderboard.
Available on iOS App Store.
Would love to hear your feedback — especially from fellow Sudoku fans! 🧩