Pupil Distance PD Measure 4+

Quick & Accurate PD Measure


    • $7.99



App Store's highest-rated app to measure your Pupil Distance quickly and accurately. Measure your PD in seconds and order your next pair of glasses online for less.

PD, short for Pupillary Distance, is the distance between the center of your pupils in millimeters. This measurement is vital for the manufacturing of your prescription eyeglasses. This measurement is also useful for VR (Virtual Reality) Headsets.

App provides:
• Distance PD - For making regular glasses for everyday use.
• Reading PD - For making reading only glasses, useful for phone/tablet use.
• Computer PD - Useful for desktop, laptop and notebook computers.
• VR PD - For use in Virtual Reality headsets.

Our app uses advanced algorithms to calculate your PD. Check out our positive reviews by thousands of satisfied customers.


• For iPhone X and later models, fully automated PD measurement in less than 3 seconds.
• Over 300 readings are taken and our advance algorithm provides the most accurate results.


• For models before iPhone X, Measure your PD in 3 quick steps.
• User-friendly interface and detailed help step-by-step.
• Advance algorithm fine-tuned over five years, calculates and gives precise results.
• Pupils are automatically detected.

What’s New

Version 2.0.1

• Bugfixes and improvements.

• NEW: For iPhone X and later, Fully automatic PD measurement done within 3 seconds with extreme accuracy.
• NEW: Computer PD and Virtual Reality PD measurement are also available now.
• NEW: Mono (Right and Left separately) PDs are now also available.
• A description has been added for each result for better understanding.
• Redesigned crosshair is easier to see and position on pupils.
• Maximum photo zoom has been increased for easier crosshair positioning.
• Completely redesigned camera with front and back camera flash and timer.
• Improved algorithm for better accuracy.
• Automatic pupil detection.

Ratings and Reviews

4.6 out of 5
2.7K Ratings

2.7K Ratings

almosley ,

Works great!

This is a great app to use if your eye doctor’s office is refusing to give you your PD. I had gotten my exam done and ordered a pair of glasses but after receiving them I was not happy at all and wanted to return them and look into buying online, but you need the PD. So I called and they said that it changes with each pair of glasses so it’s not part of my prescription and they can’t tell me, which I knew was crap, they just wanted to keep me buying from them. So I downloaded this app and did it a bunch of times and took the average of all those and then when I went and returned my glasses they pulled out all my paperwork and sure enough my PD was listed and it was the EXACT SAME as what I had averaged on here. Well worth the price when you’re saving by buying online.

Developer Response ,

Thank you for your kind words. We are always working to make the app better.

Hovi Babyy ,

Easier than it should be

You'd think with how much of a hassle it is to get someone to give you your PD measurement that an app like this couldn't work. I measured my PD 10 times and went with the average. Glasses are as good as anything I've bought in store. Would recommend to anyone who wants to buy glasses online.

I would echo complaints about dragging the cross hairs. It's a bit finicky. A directional pad would be nice to get it centered with less hassle. Still 5 stars because I didn't have to leave my desk.

Developer Response ,

Thank you for your kind words. We are always working to make the app better. A new version with improved crosshair movement is coming soon.

well vetted ,

Value buy given options

I found any website that allows you to use web cam or device will lure you in with their measuring tool, only to hit a paywall or find you need to order. For $2.99, and especially if there are a few family members it's worth it. If you don't get fitted for frames at your exam you likely don't have your PD. I want the value of online frames, so need the PD.

I took my measurement twice for both assurance and experienced drawback with tool: when aligning the target over your eyes...you drag it with your finger which makes it VERY difficult to see if your are centered because your finger controlling the target is over the eye.

Developer feedback: make the targets have a control pad (4 directional arrows or what ever can be done) so that you can move the target without covering the eye!

Developer Response ,

Thank you for your kind words. We are always working to make the app better.
Improved crosshair controls are coming soon.

App Privacy

The developer, GlassifyMe, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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