Happy Sudoku - Free Classic Sudoku Puzzle Game on Windows Pc

Free professional Sudoku game app for Android phones, simple, easy-to-use and with strong functions. Thousands of Sudoku puzzles in different levels, from easy to expert. You can find the proper level and get started!

Sudoku is the best puzzle game for fun and education. By solving Sudoku puzzles, you can pass the leisure time without even noticing and train your brain and logic thinking as well. The more you play, the more you will enjoy Sudoku. It’s also a good choice for spending time with kids. You can develop their perception of numbers and interest in Maths.

Sudoku app is a new way to play Sudoku puzzles. If you want to try, you will find it’s much more convenient and easier than Sudoku on paper and with the same fun. This free Sudoku app is a new but professional Sudoku app. We have a group of Sudoku lovers in our team and want to offer the best sudoku app for those who love Sudoku much like us.

In this app, we choose and collect thousands of classic Sudoku puzzles in different levels. Whether you are a new player or a Sudoku expert, you will find the proper Sudoku puzzle.


Based on our own game experience, we include following useful features to offer you the best game experience:

Simple design: clean and simple design can give you a better mood and concentrate more on solving puzzles.
Four levels of difficulty: Easy Sudoku, medium Sudoku, hard Sudoku and expert Sudoku. Meet different Sudoku lovers’ demands.
Powerful features you can use when solving the Sudoku puzzle:
✔️Notes Taking: turn on the pencil mode to add or remove numbers in the cell.
✔️Highlight Duplicates: Highlight duplicates in a row, column and 3*3 grid.
✔️Unlimited Undos: use it when you fill wrong numbers in several steps.
✔️Intelligent Hints - guide you through the numbers when you get stuck.
✔️Hide Used Numbers: hide the numbers placed in 9 different cells correctly.
✔️Auto Remove Notes: update the notes when a number is filled in a cell.

Auto-save: if you exit the Sudoku app, the sudoku puzzle will be saved exactly as you see it. You can open the app and continue the game at any time.
Game Records: Record the game data. of you your best time in each level and follow your progress.
Personalized Settings You can choose to turn on/off all the settings in the settings area.
Game Instructionsbasic guide for new players to learn how to play Sudoku.

Besides, according to the research, Sudoku has many benefits for players. Some are as following:
☀️Pass time in a healthy way;
☀️Boost logical thinking;
☀️Improve memory;
☀️Develop quick-thinking skills;
☀️Improve concentration;
☀️Stimulates your mind;
☀️Thinking as whole as well as element level
☀️It also improves your decision making skill
☀️ Reduces the risk of dementia.
☀️ A hobby cost nothing
☀️ Calm you down
☀️… ...

So many benefits explain the reason why Sudoku is a classic and popular puzzle game in the world.

Thank you for your interest and hope you like our App. If you have any questions or suggestions, feel free to contact us with coolappsteam01@gmail.com.

Play Sudoku and challenge your brain now! It may become your next lifelong hobby.

▶ Add new puzzles to Classic Sudoku: Easy, Medium, Hard and Expert
▶ Add Custom sudoku feature: now you can custom your sudoku (can be found on More page)
▶ Add on tap solve sudoku feature: when you stuck, try on tap solve feature
▶ Improve app stability and quality
▶ Other improvements

Allows applications to open network sockets.
Allows applications to access information about networks.
Allows an application to read from external storage.
Allows an application to write to external storage.
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.