Classic Sudoku Master! vs SudoEarth

CLASSIC SUDOKU MASTER - A Classic Number Puzzle Game Challenge your mind with Sudoku Master, a clean and focused Sudoku puzzle game for iPhone and iPad. Whether you're a complete beginner or a seasoned expert, Sudoku Master has the perfect puzzle waiting for you. ---------------------------- WHY SUDOKU MASTER? ---------------------------- Sudoku is a classic number puzzle game that helps sharpen focus, improve memory, and relax the mind. Sudoku Master delivers a clean, distraction-free Sudoku experience on mobile - no clutter, just pure puzzle-solving pleasure. ---------------------------- KEY FEATURES ---------------------------- INFINITE PUZZLES Never run out of challenges! Every puzzle is uniquely generated with a guaranteed single solution. Play a new puzzle every time. 5 DIFFICULTY LEVELS - Easy (40 clues) - Perfect for beginners and casual players - Medium (32 clues) - Requires planning and logic - Hard (26 clues) - Advanced techniques needed - Expert (22 clues) - Designed for experienced puzzle solvers - Evil (17 clues) - Only the fearless survive SMART HINTS Stuck on a cell? Use a hint to reveal one answer without spoiling the whole puzzle. Hints are limited per difficulty to keep it challenging and rewarding. NOTES MODE Toggle pencil marks to write candidate numbers in any cell - just like solving on paper but cleaner and faster. UNLIMITED UNDO AND REDO Made a mistake? Undo any move instantly. No penalty, no stress. Experiment freely and redo moves you want back. TIMER AND PERSONAL STATS Track your solving time, best times per difficulty, total wins, win rate, and current streak. Watch yourself improve with every puzzle you solve. AUTO-SAVE Never lose your progress. Your game is saved automatically - just tap Continue to pick up exactly where you left off. BEAUTIFUL DARK THEME A stunning dark UI with vibrant blue highlights is easy on the eyes day or night. Designed for long, comfortable playing sessions. PLAY OFFLINE No internet required. All puzzles are generated on your device so you can play anywhere - on a plane, subway, or in the mountains. ---------------------------- BENEFITS OF SUDOKU ---------------------------- Playing Sudoku regularly is known to help with: - Logical thinking and problem-solving skills - Memory and concentration - Stress relief and mental relaxation - Keeping your mind active and engaged - A satisfying mental workout anytime ---------------------------- HOW TO PLAY ---------------------------- The rules are simple: 1. Fill every row with the numbers 1 through 9 2. Fill every column with the numbers 1 through 9 3. Fill every 3x3 box with the numbers 1 through 9 4. No number can repeat in any row, column, or box Tap a cell, tap a number, solve the grid. That is it! Use Notes mode for harder puzzles to track possibilities. ---------------------------- DESIGNED FOR iPHONE AND iPAD ---------------------------- Sudoku Master is built natively for iOS with smooth animations, haptic feedback, and a responsive layout that looks stunning on every iPhone and iPad - from the smallest SE to the largest iPad Pro. ---------------------------- DOWNLOAD AND PLAY ---------------------------- No account required. No subscription. Just install and start solving. Download Classic Sudoku Master now and enjoy the puzzle-solving experience! ---------------------------- SUPPORT AND FEEDBACK ---------------------------- We read every review and reply to every support email. Your feedback makes Classic Sudoku Master better for everyone. Email: sky.techno.biz@gmail.com

SudoEarth is a calm, zen-aesthetic sudoku game. No ads. No trackers. No notifications. Just sudoku, painted in watercolor across five real geographies — Iceland, Kyoto, Tuscany, Norway, and Scotland. A SUDOKU WORLD TOUR Each chapter is a place. Iceland's aurora-lit fjords. Kyoto's bamboo grove. Tuscany's honey hills. Norway's cold-blue waterfalls. Scotland's misty highlands. Solve 30 puzzles in each chapter to complete the journey. 150 hand-tuned puzzles in version 1.0, every one verified to have a unique solution. MIRA — A GENTLE COACH Stuck on a puzzle? Mira, your in-game guide, offers three-tier progressive hints — direction first, then technique, only the answer if you ask twice more. The hint flow respects your pace: nothing is given before you've asked. Mira's tier-3 ground-truth gate means the answer is always correct, never an AI guess. WILDLIFE COLLECTION Each chapter has a hand-painted anchor wildlife — Arctic fox, Japanese macaque, Tuscan owl, Norwegian reindeer, Scottish wildcat. Complete a level to unlock the painting. Walk into the Wildlife tab anytime to see your collection. DESIGNED FOR CALM SudoEarth's design language is rice-white paper, soft watercolor washes, italic serif chapter titles, hand-drawn ink icons. No saturated alarming red anywhere — even the "out of hints" state lands on warm gold, not shouty red. The whole app is locked to light mode for now, deliberately, to match the airy notebook feel. OFFLINE-FIRST Every puzzle works offline. The rule-engine fallback means even Mira's hints work without a network — your hints just route locally instead of through our server. Your puzzle progress is saved locally first, then optionally synced to your other devices via Apple Sign-in. PRIVACY-FIRST We do not track you. We do not sell your data. We do not show ads. SudoEarth uses Apple Sign-in's anonymous identifier — we never see your name or email. Crash diagnostics use Firebase Crashlytics with no personal information attached. Full details at sudoearth.app/privacy. PREMIUM SUBSCRIPTION Free play comes with 3 Mira hints per day. SudoEarth Premium unlocks unlimited Mira hints. Two plans — Monthly and Yearly. Both are auto-renewable subscriptions and renew unless cancelled at least 24 hours before the period ends; you can cancel anytime in iOS Settings → your name → Subscriptions. The yearly plan offers the best per-month value. REQUIREMENTS - iOS 26 or later - iPhone or iPad - Optional: Apple Sign-in for cross-device sync LINKS - Privacy Policy: https://sudoearth.app/privacy - Terms of Service: https://sudoearth.app/terms - Support: support@sudoearth.app Auto-renewable subscription terms and conditions: SudoEarth Premium subscriptions automatically renew unless turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period at the rate displayed at purchase. You can manage and cancel your subscription by going to iOS Settings → Apple ID → Subscriptions after purchase.