This app measures pupillary distance (PD) and fitting heights using your device's camera. It offers various optical calculators for lens adjustments and acuity estimations. Accurate measurements are crucial for optimal lens centering and multifocal lens positioning.
1.8.0
July 28, 2026
Measure your pupillary distance instantly with our App Clip—no full app download required. Launch it from a supported link or QR code.
$7.99
Lifetime Subscription
A lifetime premium subscription.
This app measures your pupillary distance (PD) and fitting heights for eyeglass frames using your device's camera. It also includes several useful optical calculators for lens adjustments and visual acuity estimations.
Measurement accuracy is guaranteed to be the highest achievable by the capability of your device's camera system. Both far and near PDs, binocular and monocular, are available at no cost.
Fitting height is measured for the frames you currently have on. Accurate fitting height measurements are needed to ensure lenses are properly centered for optimal viewing clarity and to position segments for multifocal lenses. This feature is supported on devices with TrueDepth or LIDAR camera systems.
The app includes calculators for Rx Transposition, Vertex Adjustment, Crossed Cylinders (over-refraction), Keratometry Conversion, Visual Acuity Scale, Estimated visual acuity, Minimum Blank Size (MBS), and Magnifications.
The core features, including pupillary distance measurements and several optical calculators, are available at no cost. However, some advanced features or functionalities may be available through in-app purchases.
