Japsum vs SudokumApp

Japsum (short for "Japanese Sum") is a free, logic-based, combinatorial number-placement puzzle game. It’s similar to Kakuro or Sudoku puzzles, but with its own unique twist. Starting with an empty grid, you’ll use hints provided on the sides and top to place numbers or black boxes in the grid. The hints indicate the sums of consecutive numbers, with no black boxes in between. Multiple hints mean that sequences of numbers are divided by one or more black boxes. By using logical reasoning and interpreting these hints, you’ll make steady progress in filling in the grid with numbers and black boxes. Be prepared—especially with the larger grids, these puzzles can get very challenging! The app offers grid sizes ranging from 3x3 to 22x22—the largest puzzles of this kind, as far as I know. Every puzzle has exactly one unique solution, ensuring a fair and rewarding challenge. As you solve puzzles, your level increases, unlocking larger grids and fun bear avatars that you can choose to represent your progress. Best of all, Japsum is completely free—so you can dive into the world of Japanese Sum puzzles at no cost. Are you ready to test your logic and take on the ultimate puzzle challenge? Download Japsum today and start solving!

Train your brain and relax with the timeless logic challenge of Sudoku — now with modern features in a clean, minimalist design. This offline Sudoku app includes 100 handcrafted puzzles across 4 difficulty levels: Easy, Medium, Hard, and Expert. Each level contains 25 unique games, ensuring endless fun and mental stimulation. Whether you’re a beginner or a Sudoku master, you’ll enjoy features designed to enhance gameplay: No Internet Needed – Play anywhere, anytime. Lives System – Each game gives you 3 lives to make it more strategic and engaging. Hint System – Varying number of hints based on difficulty (use them wisely!). Scoring & Progression – Earn points and track completed levels as you go. Timer & Performance Tracker – Beat your best times and improve your solving skills. Haptic Feedback – Smooth and responsive gameplay that feels great. Dark Mode Support – Eye-friendly for night-time players. Sudoku is more than just a puzzle—it's a daily mental workout. With no ads, no distractions, and no forced logins, this app keeps it simple and focused. Ready to boost your logic skills and climb your way from Easy to Expert? Download now and start solving!