Support
Questions, bugs or ideas: write to hello@foamula.app. If something is not working, please include your iPhone model, your iOS version and what happened.
How do I play?
You get two rows of numbers, IN and GOAL. Drag bubbles into and around the row to build a formula that turns every IN number into its GOAL number. Your result shows live in the YOURS row.
What does a move cost?
Taking a bubble from the basket costs 1 move. Moving a bubble along the row costs 1 move for each bubble it passes. Tossing a bubble back to the basket costs a penalty, usually 5 moves. Undo takes back your last move for free.
How are stars earned?
Three stars if you match the best possible number of moves or beat it, two if you stay within twice that number, one otherwise. The best number itself is not shown, not even after a win; only a hint shows it, together with the formula.
What is the daily puzzle?
One puzzle a day, the same for everyone. A new one arrives at midnight, your local time. Your first win is the one that counts; you can replay it for practice.
How do hints work?
One hint per puzzle: watch a short clip, and the game shows you the formula. It stays with the puzzle until you solve it. If a clip cannot be shown, nothing is used up.
Does the game work offline?
Yes. Everything except hint clips works without an internet connection.
Are there in-app purchases?
No. The game is free. The only ads are the optional clips for hints.
Where is my progress saved?
On your iPhone, and in its iCloud or computer backups if you make them. There is no account and no sync between devices. Deleting the app deletes your progress.
How do I start over?
Settings › Reset progress, then tap again to confirm. It clears your ladder and practice results; your daily results, your settings and any hint unlocked on an unsolved puzzle are kept.
Which devices are supported?
iPhone with iOS 16 or later.
Privacy
See the privacy policy.