
Fold Clock
PaidDuo-native
The time on one half, sleep sounds on the other
On the Duo: Duo-native. It requires iPhone Duo, its description says; its maker's site shows the hinge angle and today's folds on the left and the week's chart on the right on the open Duo. Checked November 5, 2026.
App Store data as of November 5, 2026

Anyone after a practical tool, since it only counts folds, and background counting needs two Shortcuts automations set up first.
Hingeworthy counts the times you open and close your iPhone Duo. It shows today's opens and closes, your all-time total and how often you open it flat or prop it up like a tent or laptop. A live gauge gives the hinge angle in degrees or as a percentage on both the outer and inner screen. History shows your busiest days and hours, streaks and milestones, with a new title every 500 folds. Small, medium and large Home Screen widgets show today's folds, today against yesterday and opens by hour. Two Shortcuts automations keep it counting when the app is closed, and everything stays on the phone.
It requires iPhone Duo, its description says. Its maker's site shows the Today screen on the open Duo, with a 180-degree hinge gauge, 44 folds today and the opens and closes on the left, and a chart of this week's folds with your busiest time, busiest day and longest open session on the right.