Flatbias — Reckona Inc.
Email t.kaniwa@reckona.co.jp with questions, bug reports, or billing issues. Please include your device model and OS version. We reply in English or Japanese, usually within a few business days.
Each puzzle gives you the unfolded net of a polyhedron. Its faces are divided into cells, with a start and a goal. Tap cells to lay a road — you only get a limited number — then fold the net up. If the road links start to goal on the folded solid, you clear the puzzle. Faces that look far apart on the net can become neighbors once folded; that is the whole trick.
New puzzles arrive every Saturday. If the list looks stale, pull down on the home screen to refresh, and check that the device is online.
Flatbias Pass is an auto-renewing subscription (monthly or yearly) that unlocks every puzzle and the back catalog, removes ads, and gives unlimited hints. A 7-day free trial is available on first purchase.
The App has no accounts. Progress and settings live on the device, so deleting the App removes them. See the Privacy Policy for what analytics and advertising data is collected and how to opt out.