Sum Fun
Sharpening minds since 2015
Free · Designed for iPad
Sum Fun – The Number Puzzle Game for Sharp Minds
If you enjoy Sudoku, Kakuro, or other number-based puzzles, you’ll love the unique twist of Sum Fun.
Sum Fun combines logic, numbers, and strategy into endlessly replayable puzzles that have been delighting players of all ages for the last decade!
Whether you want a relaxing break or a mental workout, Sum Fun has you covered with a variety of creative board shapes, including:
Hexagon • Square • Pyramid • Star • Heart • Turtle • Snowflake … and many more!
How To Play: (aka the 3 simple rules for Having Sum Fun):
1. Place a number into any empty slot
2. If it matches the last digit of the sum of its neighbors, they get blasted away!
3. No matches? Place a number that sets up a future sum, and keep blasting until the board is empty!
Why you’ll love Sum Fun:
• Easy to play, fun to master – simple rules, with a variety of depth and strategy
• Brain-boosting gameplay – by the time you’ve played a few times, you’ll be adding up numbers faster than you can say, ‘What’s six plus eight?’
• No time limits – play at your own pace and relax while keeping your mind sharp
• Challenge friends (and yourself!) – share puzzles and see who can win in fewer moves! No internet needed: share games via QR code, text code, or simply pass-and-play.
• No annoying pop-up ads – just banner ads and optional rewarded ads for extra content. No ads unexpectedly popping up and breaking your concentration while you figure out how to close them! Best to spend that mental energy playing a game you love!
Exercise your mind, master the numbers, and discover why Sum Fun has been loved world-wide for over 10 years!
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
To celebrate 10 years of Sum Fun, we’ve refreshed the gameplay and added sumptuous new features to set you up for the next decade of fun!
• New shapes including Star, Snowman, Snowflake, Plane, and new beginner-friendly games
• Play with hexagons as well squares
• A revamped interface to make it easier to play one-handed
• Customisable colour themes
• Easier to challenge your friends: scan a QR code and play the exact game, no internet needed
The developer, Greg Sharpe, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Wondrous Minds Company Limited
- Size
- 139.9 MB
- Category
- Puzzle
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
English and 4 more
- English, German, Japanese, Korean, Vietnamese
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2025 Wondrous Minds Company Limited
