Sumday — Daily Number Puzzle
Nine numbers. One solution.
Only for iPhone
Free
iPhone
A fresh number puzzle every day, plus free practice whenever you want. Play offline, build a streak, and share your result. No ads or purchases.
Nine numbers. One perfect balance.
Make a little room for logic with Sumday. Place 1–9 once each so every row, column, and diagonal adds up to its target. Every puzzle has exactly one solution.
YOUR DAILY MOMENT
A fresh daily puzzle gives everyone the same challenge. Finish consecutive daily puzzles to build your streak.
KEEP PLAYING
Switch to Practice for another puzzle whenever you like. All practice puzzles are free.
A HAND WHEN YOU NEED IT
Use a hint to reveal one correct number, erase an entry, or undo a move. Matching sums show a checkmark so you can follow your progress.
PLAY ANYWHERE
No internet connection or account is required. Your puzzle progress saves automatically on your device.
SHARE THE SATISFACTION
Share a spoiler-free result with the puzzle date and your hint count.
All puzzles and features are free. No ads, subscriptions, or in-app purchases.
Daily puzzles reset at midnight UTC. Progress stays on your device and does not sync between devices.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Andrew Beckerman, 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
- Andrew Beckerman
- Size
- 496.6 KB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Andrew Beckerman