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Productivity · iPhone Duo app
by Nicholas Palmer
An odometer for your hinge, counting every fold on metal-framed drums.
iPhone Duo support
Confirmed
Checked by hand against the App Store.
Screenshots
Screenshots from the App Store. Tap one to see it full size.
On iPhone Duo
Crease Meter keeps a lifetime tally of every fold of your iPhone Duo, rolling it across six odometer drums with a haptic tick. A paper log, widget and Apple Watch app track your days and streaks.
Yes. iPhone Duo support is confirmed in the App Store description of Crease Meter version 1.0, released Nov 6, 2026.
Crease Meter is free to download on the App Store.
Crease Meter is made by Nicholas Palmer and is in the Productivity category.