The Smartest Sudoku Experience Ever Created
Challenge your brain, track your IQ progress, and compete globally. Experience revolutionary gameplay with Chaos Mode, daily challenges, and beautiful themes.
Not just another Sudoku app. A complete brain training experience.
Our proprietary algorithm tracks your performance across puzzles and estimates your IQ score. Watch your brain power grow as you solve more puzzles!
The world's first Sudoku with dynamic box swapping! Boxes randomly swap during gameplay using isomorphic transformations - keeping puzzles valid but deliciously unpredictable.
New puzzle every day! Compete with players worldwide on the same puzzle and climb the global leaderboard.
Daily, monthly, and all-time leaderboards. See how you rank against puzzle masters from around the world.
Progress through 60+ carefully crafted levels. Earn XP, level up, and unlock achievements as you master each difficulty.
From Classic to Aurora Borealis to Neon Cyber - find the perfect look for your puzzle experience.
Stuck? Use hints strategically to learn techniques and improve your skills. Hints explain the logic, not just the answer.
Advanced note-taking system to track possibilities. Essential for harder puzzles and expert strategies.
Perfect for learning. Gentle introduction to Sudoku fundamentals.
Relaxing gameplay. Great for unwinding while keeping your brain active.
Balanced challenge. Where most players find their sweet spot.
Serious brain workout. Requires advanced techniques and patience.
Ultimate challenge. Only for true puzzle masters. Are you ready?
Yes! Sudoku IQ+ is completely free to download and play. All core features including Daily Challenges, Story Mode, and all difficulty levels are free. Premium features like ad-free experience and unlimited hints are available through optional purchases.
Chaos Mode introduces the world's first dynamic box-swapping in Sudoku. During gameplay, boxes can randomly swap positions using isomorphic transformations - this keeps the puzzle mathematically valid while creating an exciting, unpredictable challenge unlike anything you've experienced.
Our proprietary algorithm analyzes your solving speed, accuracy, difficulty level, and consistency across multiple puzzles. It estimates your IQ based on proven cognitive science correlations between logical puzzle-solving ability and general intelligence.
Yes! All game modes work offline. Daily Challenges require internet to submit your score to the global leaderboard, but you can still play them offline and submit later.
Your game progress is saved locally on your device. Cloud sync feature is coming soon!
Every day at midnight (UTC), a new puzzle is available for all players worldwide. Complete it to earn points and compete on the global leaderboard. The faster and more accurately you solve it, the higher you rank!
Join thousands of players challenging their minds with Sudoku IQ+