PD+ : Easy Pupillary Distance

Name: PD+ : Easy Pupillary Distance
Rating: 4.7 (405 reviews)
Author: Zernike LLC

Measure PD & Seg Height

Free · In‑App Purchases

405 Ratings
Ages

9+
Years
Category

Health & Fitness
Developer

Zernike LLC
Language

EN
English
Size

84.6
MB

PUPILLARY DISTANCE PD+ instantly measures pupillary distance (PD) by capturing & processing a single, hi-res facial photo. Measurement accuracy is guaranteed to be the highest achievable by the capability of your device's camera system. Far and near PD's -- binocular & monocular -- are always available at no cost. FITTING HEIGHT PD+ instantly measures Fitting Heights for the frames you currently have on. Accurate fitting height and PD measurements are needed to ensure that lenses being made for your frames are properly centered on your eyes to achieve optimal viewing clarity. In addition, Fitting Heights are used to position segments for fitting multifocal lenses. Please note: Fitting Height is currently only supported on devices equipped with the TrueDepth or LIDAR camera systems (e.g., iPhone X and later non-SE models). CALCULATORS - Rx Transposition - Vertex Adjustment - Crossed Cylinders (over-refraction) - Keratometry Conversion - Visual Acuity Scale - Estimated visual acuity - Minimum Blank Size (MBS) - Simple Magnifier and Spectacle Magnifications

Ratings & Reviews

4.7

out of 5

405 Ratings

Works great
12/08/2023

TheBooma
There were a couple others that I tried but this one worked great. It even has voice instructions. I would highly recommend this app

Developer Response
Thank you for your feedback! We are very glad that you have found PD+ to be useful.
Works great
12/08/2023

TheBooma

There were a couple others that I tried but this one worked great. It even has voice instructions. I would highly recommend this app
Developer Response 05/03/2024
Thank you for your feedback! We are very glad that you have found PD+ to be useful.
Friendly use
05/03/2025

frienx4ever
friendly use and accurate.
Friendly use
05/03/2025

frienx4ever

friendly use and accurate.
Artist/ painter
09/24/2022

Little steel
Like it very much . Very convenient and will follow up and discover more detail functions
Artist/ painter
09/24/2022

Little steel

Like it very much . Very convenient and will follow up and discover more detail functions
PD not quite there
06/22/2023

captnslo
Using an iPhone SE. PD’s for myself and my coworkers were constantly off by 4-6 mm. Calculations are a great tool to have for the pocket access, but since most people will probably use this to measure their PD for online glasses prescriptions, I would not recommend this. Best to get it measured by a real optician.

Developer Response
We really appreciate your honest review. The iPhone models with a single-lens camera (includes SE and devices that came before iPhone X) pose a challenge due to the lack of depth imaging capability. However, we are always finding ways to squeeze out more performance in all devices running at least iOS 15. We hope you would consider updating your review in a future PD+ release.
PD not quite there
06/22/2023

captnslo

Using an iPhone SE. PD’s for myself and my coworkers were constantly off by 4-6 mm. Calculations are a great tool to have for the pocket access, but since most people will probably use this to measure their PD for online glasses prescriptions, I would not recommend this. Best to get it measured by a real optician.
Developer Response 06/24/2023
We really appreciate your honest review. The iPhone models with a single-lens camera (includes SE and devices that came before iPhone X) pose a challenge due to the lack of depth imaging capability. However, we are always finding ways to squeeze out more performance in all devices running at least iOS 15. We hope you would consider updating your review in a future PD+ release.

Measure PDs and Fitting Heights from a photo loaded from your library (pro version only, A & DBL values required) Under-the-hood optimizations

Version 1.7.6

12/22/2025

Data Not Linked to You

The following data may be collected but it is not linked to your identity:
- User Content
- Identifiers
- Usage Data
- Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

Information

Seller
Size
Category
Compatibility
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Age Rating
In-App Purchases
Copyright

Privacy Policy

Supports

Family Sharing

Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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PD+ : Easy Pupillary Distance

Measure PD & Seg Height

Ratings & Reviews

What’s New

Version 1.7.6

App Privacy

Data Not Linked to You

Accessibility

Information

Supports

Family Sharing

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