For ages 8–12 · Maths
Fraction Pizzeria
Make pizza, run your own pizzeria and discover fractions through play.
The first 15 in-game days are free, then one optional purchase unlocks the full game. No subscriptions.
For all ages · Puzzles
Sudoku Plaza
A calm daily sudoku with five levels and hints that explain every step. Compare your times with friends.
The daily puzzle and five puzzles a day are free. Plus costs €0.79 a month, with the first month free.
Independent studio · Made in the Netherlands
Thoughtful games for curious minds.
Calm, ad-free games for iPhone and iPad that help you learn, think and unwind, whether you’re 8 or 80.
What you can count on
No ads
Nothing pops up to interrupt play, and no one pays to reach you or your child.Your data stays yours
We don’t track you across other apps or sell your data. Our privacy notices say plainly what we collect, and why.Clear, fair prices
Every game starts free. Paying is optional, and you always see the price first.Real support
Questions go straight to the studio that made the game. We usually reply within three business days.
About the studio
Strum App Development is an independent app studio in the Netherlands. We make the kind of games we’d happily give to our own family: easy to understand, calm to play and respectful of your privacy.