About Pupillary Distance

Pupillary Distance is an iPhone app from Appcellent. It uses the front-facing TrueDepth camera and AR face tracking to measure your pupillary distance — the millimeter gap between your pupils that you need to order eyeglasses online — and reports your far, near, and left/right monocular PD. It can also suggest eyeglass frame styles for your face shape. It's free to try and ad-free.

Why we built it

Buying glasses online is easy until you're asked for your PD — a number most people don't have. We thought: every modern iPhone already ships with a TrueDepth camera precise enough to measure it. So we built a simple, private, on-device app around it.