Loop Sum
Add numbers, form a shape
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
A simple logic puzzle: select numbered squares so their sum equals the target.
[Rules]
- Tap bright numbered squares to select them (dark squares cannot be selected)
- Make the sum of the selected numbers equal the target shown at the top
- The selected squares must form one group connected edge to edge (up, down, left, or right)
- The selected group must not enclose any unselected squares (no holes)
When all the conditions are met, “Solved!” appears automatically and the next puzzle begins.
While you play, the bottom of the screen shows what still needs fixing, such as how far the sum is from the target or what is wrong with the shape.
[Features]
- A guided tutorial for first-time players: just tap the glowing squares
- 24 puzzles (3 difficulty levels, 8 each)
- No ads, no in-app purchases, and no data collection
- Play completely offline
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
When you solve the last puzzle, a completion screen now appears. Next time you open the game, you’ll continue from where you left off.
The developer, MASATO MIYAZAWA, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MASATO MIYAZAWA
- Size
- 76.4 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Japanese, Korean, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 MASATO MIYAZAWA