The full math watch, plus a no-peeking Challenge mode that hides the time until you solve it — or tap to reveal. Free on the web, and on iPhone.
Download on theApp StoreThe time stays hidden until you solve both equations — or give in and tap to reveal. A quick round whenever you've got thirty idle seconds.
Put the math face on your Home Screen, or a slimmer version on the Lock Screen. The puzzle is the first thing you see, all day.
No sign-up, no subscription, no ads. Open it and start solving. The same engine that drives the watches and the website.
The app isn't a separate product. It's the same math face you'll find on the web watch and the physical Pop, Studio, and Grande. Each one re-chalks two fresh equations every minute and hands a little thinking back.
Want to try before anything's installed? Challenge mode runs in your browser right now.
Yes. The web watch and Challenge mode are free today, and the iPhone app is free too — no account, no subscription, no ads.
It's out now — download it free on the App Store. Runs on iPhone, with Home Screen and Lock Screen widgets included.
Not yet. iPhone comes first; the web watch works on any phone in the meantime — just open it and add it to your Home Screen.
The app is the math face on your phone. The Pop, Studio, and Grande are physical clocks for a desk or wall. Same puzzles, different places to keep them.
