Sudoku: Brain Flow

Sudoku, refined. No Ads. No Subscription. No Registration. Pay once and enjoy a complete Sudoku experience on iPhone and iPad. What you get: • Unlimited unique, solvable puzzles with 5 difficulty levels • Smart Hints with board highlights and step-by-step explanations • Notes mode + Auto-Candidates for faster, cleaner solving • Daily Challenge with streak tracking and calendar progress • Detailed Statistics: best times, accuracy, mistakes, activity trends • iCloud sync for settings and statistics across your devices • Offline play, Light/Dark mode, and a clean Liquid Glass interface Built for focus: • Fast controls and smooth gameplay • Undo/Redo, Reset, Quick Hint • No account required, no ad clutter, no interruptions