Solve puzzles with adjustable difficulty levels. Choose from easy, medium, and hard grids. Track progress and restart puzzles. Highlight numbers for clues. Share completed puzzles via social media.
Solve puzzles with unlimited generated grids. Choose from six difficulty levels. Features a vintage 1920s design. Offers a clean interface for focused play. Provides mental exercise and entertainment. Available offline for anytime use.
Solve puzzles by filling grids with digits. Enter numbers in rows and columns to match clues. Avoid repeating digits in any row or column. Access a large library of free puzzles. Track progress and restart puzzles.
Solve puzzles with 4 difficulty levels and expert mode. Play against others or solo. Auto save progress and check for errors. Customize themes, use pen, pencil, and eraser tools. Track statistics, achievements, and leaderboards.
The app presents a logic puzzle for touch screens. Users draw rails to create a working monorail system, connecting all stations to form a single loop.
Solve algebra equations step-by-step. Practice arithmetic operations anytime. Access over 100,000 grade-specific word problems with explanations. Receive personalized feedback and progress tracking.
Solve puzzles with 4 difficulty levels and daily challenges. Use notes, hints, and undos. Customize with colors. Export puzzles as PDF via email. Features symmetric designs and advanced generation algorithm. Compatible with VoiceOver.