Solve puzzles by filling 9×9 grids with digits 1-9. Choose from four difficulty levels. Store notes for possible numbers. Use hints to fill missing digits. Complete daily challenges. Clear grids when all numbers are placed.
Perform general calculations including addition, subtraction, multiplication, division, and square roots. Use memory functions for storage and retrieval. Apply thousands separators and handle numbers up to 60 digits.
Play Sudoku puzzles with adjustable difficulty levels for all skill levels. Customize game settings and choose from various options. Solve puzzles on any screen size with touch-friendly controls. Track progress and adjust game experience preferences.
Solve puzzles in five categories: Normal, Cross, Jigsaw, Cross Jigsaw, and Inequality. Each category contains 500 puzzles. Features include puzzle selection, hint system, and progress tracking. Play all puzzles for free.
Solve puzzles in 6x6, 9x9, and jigsaw formats. Access thousands of levels with varying difficulty. Track progress and replay previous games. Sync puzzles across devices.
Learn to drive through interactive missions and realistic simulations. Choose from multiple car models and customize settings. Practice in various weather conditions and challenging environments. Improve parking skills with targeted exercises.
Study and test knowledge of the 20 standard acids through customizable quizzes. Topics include names, structural formulas, 1-letter and 3-letter codes, codons, and side chain classes. Quizzes are available for free. Remove ads with an in- purchase.
Learn numbers and counting in English, Spanish, and French with correct pronunciation. Tap characters to hear sounds and speak with them. Practice animal sounds by calling frogs, dogs, and chickens.
Play with pencil and interface. Use Apple Pencil for writing and erasing. Auto-fill notes on demand. Solve puzzles with interactive solver mode. Add pencil marks and highlights. Check for errors with one click.
Play Sudoku with puzzles of varying difficulty: easy, medium, hard, and expert. Solve grids with hints and track progress through game center achievements and leaderboards. Share scores and compete globally. Export puzzles and customize backgrounds.
Learn colors, numbers, shapes, and alphabets through 13 educational games with professional voice guidance. Choose from 12 languages and three skill levels. Interact with a 3D kitten guide for navigation and support.
Play with customizable themes and exclusive events. Style numbers with 26 fonts and choose modern color schemes. Track progress and solve in varying difficulty levels. Share achievements and compete with friends.
Play and KenKen puzzles in five difficulty levels. Choose between classic and KenKen modes. Access daily challenges to progress from novice to expert. Solve puzzles with varying complexity to enhance logical thinking.
Solve sudoku puzzles by filling grids with numbers following sudoku rules and region sum constraints. Enter notes with a dedicated key. Adjust puzzle difficulty and track progress across multiple games.