Select two numbers from the board, then choose an operation (+, −, ×, ÷). The result replaces both numbers. Keep combining until you reach the target number shown at the top. Try to do it in as few moves as possible!
A new puzzle is available every day at midnight (your local time). Everyone around the world gets the same puzzle on the same day.
Solve the puzzle each day to build your streak. If you miss a day, your current streak resets to zero. Your longest streak is always saved.
Tap the hint button to see how many moves the optimal solution takes (the "par"). You can also watch a short ad to reveal the next best move without spoiling the whole solution.
Yes! Puzzles are generated on your device, so no internet connection is needed. Your stats and progress are also stored locally.
After solving a puzzle, tap the share button on the win screen. It creates a spoiler-free summary showing your puzzle number, moves, and streak that you can share with friends.
Stats are stored locally on your device. If you uninstall and reinstall the app, or clear the app's data, your stats will be reset. There is currently no cloud backup.
Have a bug to report, a feature request, or a question not covered above?
Email us at support@synthsum.app
When reporting a bug, please include your device model, OS version, and a description of what happened.