Small apps.
Big delight.
Quantratum LLC designs calm, beautiful software for families and curious minds. No ads, no tracking, just products made with care.
Meet Bloomdoku.
Bloomdoku
Sudoku for kids and grown-ups where every solved puzzle grows a garden. Starring Pip and the Ninelings.
Discover Bloomdoku →
More on the way. Quantratum is a home for a growing family of products.
Software that feels calm.
We're an independent studio in the United States. We build fewer things, and build them well, guided by three principles.
Privacy first
No ads, no tracking, no selling data. Wherever possible, everything runs right on your device.
Made for families
Friendly for kids, rewarding for grown-ups, with parental gates wherever purchases appear.
Crafted to last
Fair one-time prices over endless subscriptions, and thoughtful updates for years to come.
Let's talk.
Questions, partnerships or feedback. We read every message.
connect@quantratum.com