CrossSum: Puzzle Game
Circle & Solve
Only for iPhone
Free · In‑App Purchases
iPhone
CrossSum — the addictive number puzzle that's easy to learn and hard to put down.
Every grid gives you a set of numbers and a target sum for each row and column. Your job: circle the numbers you need to keep, and erase the ones you don't, until every row and column adds up exactly right. No two puzzles play the same, and every level is generated fresh with a single, logical solution — pure deduction, zero guesswork.
HOW TO PLAY
• Tap a number to circle it — that means you're keeping it in your sum.
• Switch to Erase mode and tap the numbers that don't belong.
• Match every row and column target to clear the level.
• Make a mistake and you'll lose a heart — run out, and it's back to the start of the level.
WHY YOU'LL LOVE IT
• Quick to learn, genuinely tricky to master — a built-in tutorial gets you playing in seconds.
• Bite-sized levels that are perfect for a coffee break or a long commute.
• Difficulty ramps naturally from simple 3x3 grids to challenging 6x6 puzzles as you progress.
• Clean, distraction-free design with satisfying taps, haptics, and a confetti celebration when you solve a tough one.
• Stuck? Use a hint to reveal one correct move and keep your streak alive.
• Your progress is always saved — pick up exactly where you left off.
CrossSum is built for anyone who loves a good number puzzle: fans of Sudoku, Kakuro, and logic games will feel right at home, and newcomers will be solving puzzles within their first minute.
Play a level whenever you have a spare moment, or settle in and chase a personal best. Either way, CrossSum is the kind of puzzle game that turns "just one more level" into your new favorite habit.
Download CrossSum now and start circling your way to sharper thinking, one grid at a time.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Fixed an issue preventing in-app purchases from completing
- Minor bug fixes and performance improvements
Thanks for playing!
The developer, Ahmed Mehmood, 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:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ahmed Mehmood
- Size
- 10.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Remove Ads $2.99
- Copyright
- © Ahmed Mehmood
