GlassifyMe PD Meter App is the perfect tool to measure your PD quickly and accurately. Measure your PD in minutes 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.

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

● 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.
● Provides both your distance and reading PDs.

● Get exclusive discounts for shopping at

What’s New

Version 1.3

● Now you can take the photo hands-free with a 5-second delay timer option for better ease of use.
● Crosshair design has been improved to easily see and center the pupil for even more precision.
● Added automatic pupil detection indicator.
● Other enhancements and bug fixes.

Ratings and Reviews

4.6 out of 5
1.8K Ratings

1.8K Ratings

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 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.

Bifsubjkfxc ,

Not bad

I had my boyfriend measure my pd a few days ago and he said it was 63 then I asked him a day after to check it again just in case and he still said 63 but then he said 64.

I didn’t doubt him but I needed to make sure the measurement was right so I got this app and it said 63.5 which honestly sounds about right.

I took 2 different photos and I got the same measurement so I can’t believe the app is pretty accurate c:

Developer Response ,

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


0980578 B.C. LTD.
26.4 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like