
Support
Isometry
Something not working, or a question about a level? Write to me and I'll get back to you.
How to fold
Tap a flap to choose it, then turn its dial or drag up and down anywhere on the screen. Hold it on its mark, or let go there, and it creases. Choosing another flap lays the first one back flat at no cost.
On iPhone Duo
Tap a fold and the flap takes the phone's angle: fold the phone to fold the flap, hold it on its mark until it creases, and close the phone to shut the lid. The Hinge switch at the bottom of a level hands the folding back to your finger.
On Apple TV
Circle your thumb round the Siri Remote's clickpad to fold the flap in hand, and click when it's on its mark to crease it. Click an edge of the clickpad for the next flap, press Play/Pause to undo the last crease, and Back to leave the level.
Levels
Levels open in order: finish one to open the next. Tap a locked level to see which one opens it. Each level is marked out of three; every slip (a wasted fold, a bump, an undo) costs a mark.
Light and dark
Isometry follows your device's light or dark appearance. The look button switches between Hairline Signal and Hairline in light, and between Hairline Night and Plain Night in dark; Settings has all four.
Starting over
Your progress is kept on your device and, if you're signed in to iCloud, in your iCloud, so your other devices and a reinstall pick it up. To start again from level 1, open Settings and choose "Start again from level 1".