HingeGauge is an angle and miter calculator for iPhone and iPad. Enter an angle from 0° to 180° to calculate equal miter cuts and supplementary angles, apply a relative zero, and save named records on your device. On supported foldable iPhones, the app can also read the physical hinge angle in real time. Manual input is clearly labeled and does not measure a physical angle. • Manual angle input and live hinge readings on supported devices • Hold, resume, relative zero and clear zero • Equal miter per piece and supplementary angle • Named records stored locally • English, Simplified Chinese and Traditional Chinese interface No account, advertising or cloud service. Requires iOS 27.0 or later; live hinge access requires a supported foldable iPhone with iOS 27.1 or later.
