Happy Sudoku :)
Optimized gameplay, no ads
About
This app offers a customizable Sudoku experience with interactive lessons to help players improve their skills. It features a vast number of puzzles, daily streaks, and thoughtful gameplay design, with an optional purchase for advanced hints and features.
What's New in Happy Sudoku
1.3
October 24, 2026
• Hints now work however many pencil marks you've written. If the next step needs marks you haven't pencilled yet, the hint picks out just those cells and can fill them in for you. • Hints point out pencil marks that can't be right, such as a number that's already in the same row, column or box. • Show me no longer adds pencil marks you didn't write.
MoreSubscriptions & In-App Purchases
$4.99
Happy Sudoku Plus
Hints, lessons and practice, colors and statistics.
Developer apps
FAQ
Does Happy Sudoku have ads?
No, Happy Sudoku is completely free of advertisements. The developers emphasize an ad-free experience for all users, ensuring uninterrupted gameplay.
Can I play Happy Sudoku offline?
Yes, Happy Sudoku works offline. Puzzles are generated on your device, meaning you can enjoy the game without an internet connection.
What makes Happy Sudoku different from other Sudoku apps?
Happy Sudoku focuses on player improvement with interactive lessons for 56 techniques and a customizable board. It also offers daily streaks and a unique character that evolves with your progress.
How many puzzles are available in Happy Sudoku?
The app comes with approximately 80,000 prebuilt puzzles. Additionally, a puzzle generator provides effectively infinite replayability.
What are the benefits of Happy Sudoku Plus?
Happy Sudoku Plus, a one-time purchase, offers advanced hints that teach techniques step-by-step, practice boards for specific techniques, color sets, key layout customization, and detailed statistics.
Is Happy Sudoku suitable for all ages?
Happy Sudoku has an age rating of 4+, making it suitable for a wide range of players. The game's adjustable difficulty levels cater to both beginners and experienced players.
How often is Happy Sudoku updated?
Happy Sudoku was last updated on October 19, 2026, with version 1.1. This indicates regular updates to improve gameplay and add content.
Does Happy Sudoku track my data?
No, Happy Sudoku does not track your data. Puzzles and your progress are stored locally on your device, with optional iCloud sync for cross-device sharing.
