A joyful sudoku-solving experience built natively for iPhone and iPad. Never played before? Move by Move validation in Settings can tell you whether your moves are correct as you make them. Features: - Fully offline - Ad-free - Real-time move checking - Timer: Track your sudoku-solving speed. The timer can be hidden in Settings if time pressure isn't your thing. - Difficulty Modes: Easy, Medium, Hard - Haptic Feedback - Notes: Users can keep track of all the candidates for a cell with two modes: - the default which supports up to 4 notes which is ideal for easy and medium puzzles - the expanded version which supports up to 9 notes (Settings → More Settings → Expanded Notes) - Auto-clear Notes: When a number is placed, all instances of that number in notes in the same row, column and grid are cleared. - Undo: Take back the last action. - Streak: Number of consecutive days in which you’ve solved a puzzle. - Best Time: The shortest amount of time it has taken you to solve a puzzle (separate for easy, medium and hard) - Charts (Pro): - Track your solve speed over time for each of the difficulties - See how many games of each difficulty you played - Highlighter: When the user taps a number, the app highlights all the places where that number appears, making solving much faster. - Game Controls: Start over or start a new game at any time - Daily Sudoku Reminder: Sends a notification at the time the user chooses. For those who like playing a daily puzzle and don’t want to lose their streak. - Display Modes: Supports light and dark modes as well as switching between them within the app. - Themes: Switch up the app theme to freshen up the experience. Some colors require Pro. - Fun Alternate App icons (Pro). - Unlimited puzzles (Pro) Users can play a daily sudoku game for free while leveraging all the powerful features of the app. Unlimited games can be unlocked with a small one-time purchase (Pro). Pro supports family sharing.