223+ iOS apps & games curated and reviewed
Cool Online Sudoku is the household name in cool online sudoku, but it's far from the only option. We track 223+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.0★ (1) | No | No | May 2026 |
| 2 |  | Free | 4.8★ (305K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 4.9★ (87K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.7★ (104K) | Yes | No | Aug 2026 |
| 5 |  | Free | 4.6★ (11K) | Yes | Yes | Aug 2026 |
| 6 |  | Free | 4.8★ (20K) | Yes | No | Aug 2026 |
| 7 |  | Free | 4.8★ (8.4K) | Yes | Yes | Aug 2026 |
| 8 |  | Free | 4.7★ (38K) | Yes | Yes | Aug 2026 |
Engage with a vast collection of number puzzles. The objective is to fill a 9x9 grid with numbers so that each column, each row, and each of the nine 3x3 subgrids contain all of the digits from 1 to 9. Difficulty varies based on the number of initial hints.
Engage your mind with over 5,000 classic Sudoku puzzles across multiple difficulty levels. Enjoy daily challenges, smart hints, and customizable themes for a stress-free, offline gaming experience. Compete globally and explore new puzzle types.
Engage your mind with a classic Sudoku puzzle game offering thousands of challenges across four difficulty levels. Features include note-taking, auto-check, daily challenges, and hints to aid your brain training.
Enjoy the classic paper-and-pencil puzzle game on your phone with a clean, elegant design. Challenge your mind with multiple difficulty levels and helpful tools to aid your solving experience.
Experience Sudoku in a feudal Japan setting with beautiful graphics and advanced features. This app offers dual keypad entry, smart note-taking, and error checking to enhance your puzzle-solving. With multiple difficulty levels and thousands of puzzles, it caters to all skill levels.
Engage your mind with a classic Sudoku puzzle game offering an endless supply of challenges. Choose from four difficulty levels and utilize helpful tools like hints and auto-check to enhance your gameplay experience. Train your brain anytime, anywhere with this intuitive and polished application.
This app offers a digital Sudoku experience with multiple difficulty levels and input modes. It includes features like pencil marks, intelligent hints, and auto-saving, allowing you to track progress and compete with others online.
Engage with an unlimited supply of Sudoku puzzles, playable online or offline. This app offers six difficulty levels, daily challenges, and a clean, user-friendly interface designed for both novice and expert players. Enjoy a distraction-free experience with customizable settings and essential tools like undo/redo and note-taking.
Experience Sudoku with a unique point system, track your progress with runs, and compete globally on leaderboards. Enjoy thousands of free puzzles with adjustable difficulty and customizable looks.
Engage in a classic Sudoku experience with multiple difficulty levels suitable for all ages. Enjoy a clean interface, track your game history, and access unlimited solutions with a yearly subscription.
Engage in a classic Sudoku puzzle game designed to relieve stress and sharpen cognitive skills. Offers a vast library of puzzles with adjustable difficulty levels and helpful tools for both beginners and experts. Enjoy daily challenges and collect virtual rewards.
This classic sudoku puzzle game offers a clean, eye-friendly interface with large numbers and adjustable difficulty levels for all ages. Enhance your brain training and problem-solving skills with helpful features like auto-complete, hints, and note-taking.
Engage your mind with a challenging Sudoku game offering thousands of unique puzzles across multiple difficulty levels. Track your progress, use helpful tools, and connect with a community of fellow puzzle enthusiasts.
Engage in a classic logic puzzle experience with a vast collection of unique challenges. Enjoy multiple difficulty levels, helpful tools, and the ability to track your progress and compete with friends. Solve puzzles anytime, anywhere, with features designed to enhance your gameplay.
Engage your mind with a classic Sudoku puzzle game. Enjoy a clean interface and multiple difficulty levels. Track your progress and compete with others.
Engage in a classic number logic puzzle designed to sharpen your mind. With over 15,000 puzzles and multiple difficulty levels, it offers a challenging yet accessible experience for all players. Enjoy daily challenges, special events, and helpful tools to enhance your gameplay.
Engage your logic and memory with this classic number-placement puzzle game. It offers multiple difficulty levels, helpful tools like hints and undo, and daily challenges to sharpen your skills. Enjoy a relaxing yet mentally stimulating experience on your phone or tablet.
This app offers a comprehensive Sudoku experience with thousands of puzzles across multiple difficulty levels. It includes features like hints, step-by-step help, customizable gameplay, and offline play. Track your progress, unlock achievements, and explore classic and modern Sudoku variations.
Engage in a classic logic puzzle experience with an endless supply of Sudoku challenges. This app offers a sleek, modern interface designed for relaxing brain exercise, allowing you to hone your deduction skills and improve concentration. Track your progress, earn stars, and enjoy customizable gameplay across all your devices.
Engage your mind with this classic Japanese logic puzzle. Offers multiple difficulty levels, customizable backgrounds, and unique emoji number options. Track progress and compete with others.