GlassesOn 4+

Manufacturer-6over6 Vision Ltd

6over6 vision LTD

    • 4.9 • 9K Ratings
    • Free



#1 Ranked App for measuring Pupillary Distance.
The only medical grade app that lets you measure your PD (Pupillary Distance) and get your glasses details!

Finding your glasses parameters has never been easier!
Get everything you need to buy new glasses or AR / VR headset from the comfort of your home.
Measure your PD (Pupillary Distance) in less than a minute and get your glasses Rx details in less than 10 minutes!!!

GlassesOn uses cutting-edge computer vision to scan your glasses and extract their optical parameters, to provide you with your complete Rx details including sphere (power), cylinder (astigmatism), axis, and PD (Pupillary Distance).

Key features:
-Free PD (Pupillary Distance) measurement
-Free glasses scan
-Fast and easy to use
-Clinically tested; Meets industry guidelines for accuracy (ANSI-80.17): Rx within 0.25D, PD within 2mm.
FDA, CE and TGA listed

How it works:
-To use GlassesOn to measure your PD you will need any standard magnetic card (e.g. a library card), light colored cards work best
To use GlassesOn to extract your glasses parameters you will need:
-A 12"-27" flat computer screen
-Your current pair of glasses
-Any standard magnetic card (e.g. a library card), light colored cards work best

How to measure your PD (pupillary distance)?
-Tap “Start PD” on the home page and follow the voice instructions. GlassesOn will do the rest, it’s that easy! No ruler, No mirrors and no manual adjustments needed :)
Who can use GlassesOn?
-Anyone can use GlassesOn to get their PD and Glasses Rx for FREE!

Use GlassesOn Lenses Scanner to extract your glasses details if you:
- Are a healthy individual, 18 or older
- Have stable vision, and are happy with your current prescription
- Have a Single Vision prescription between -6.00 and +3.00
- Have a cylinder measurement up to -2.50

You should not use GlassesOn to extract your Rx details if you:
- Have multifocals/bifocals/progressives eyeglasses
- Have a prescription that includes a prism measurement
- Have a high single vision distance, reading, and/or astigmatism power
- Take any medication that affects your vision
- Have any illness or condition that affects ocular health (ask your doctor)

* We respect your privacy.
Our privacy policy clearly states what information we collect when you visit our website and/or use our app. See our full privacy policy here:

** Note: GlassesOn is a registered Class 1 Exempt Medical Device on the FDA Medical Device Listings, CE (EU) self-declared Class 1 and a registered Class 1 Medical Device on the TGA Medical Device Listings. However, GlassesOn does not provide medical advice and does not replace a full eye health exam. We encourage you to visit your eye doctor periodically.

Manufactured by 6over6 Vision Ltd.
For more details go to

What’s New

Version 5.51.0

Minor bug fix

Ratings and Reviews

4.9 out of 5
9K Ratings

9K Ratings

nottellingyomyname ,

Very helpful!

I downloaded 3 PD measurement apps. This was the only one that gave a consistent number no matter where I held my phone. For those of you thinking you need to use a credit or debit card to do this, you do not. You can use any standard *credit card sized* card with a magnetic strip on it (line it up with your bank card to make sure it’s the right size). You don’t show the front of the card only the back with the strip. I used my AAA card. It has zero personal information on the back. The instructions are very clear and say use *any* standard sized card with a magnetic strip on it so I’m not sure why anyone is freaking out about having to divulge sensitive personal info because you don’t.

Developer Response ,

Thank you so much for your 5 star review!!!

dbshin ,

beware of data collection policy

To measure, the app requires a magnetic strip card. In most cases, people will use credit cards found in their wallets. By virtue of taking an image of the card, the app collects your credit card information, partially or fully. It is not clear if the images used are deleted or retained, and if the image scanned are used to extract additional information (e.g. name, card number, exp date, institution, etc) beyond distance/scaling measurements. Normally I would think about these issues before using any app, but now I am regretting having used it knowing a picture of my credit card is on their servers.
EDIT: the developer policy states the company will make “reasonable efforts” to apply an obfuscation algorithm on the image for details. It is still not clear if the initial raw images are saved somewhere and how good this algorithm is.
2nd EDIT: developer response is reassuring.

Developer Response ,

Thank you for your feedback. GlasssesOn's mission is to make vision care accessible and affordable. Accuracy is our #1 priority. To achieve the highest level of accuracy we ask the user to use *any* magnetic card (e.g. library card, metro card etc...). We do not collect, track or identify any data on those cards. We respect our users' privacy and take multiple steps to ensure it. Thank you again for taking the time, you may contact us directly at with any additional questions and concerns. The 6over6 Team

labtechtwo ,

Thank god for this app

Thank god for this app!! I saw my optometrist for my annual back in May already knowing that I wanted to order glasses online, as my health insurance coverage is most beneficial to get contacts in office. I thought when the office gave me my eyeglasses script, it would have my PD on it. Apparently that’s an extra type of fitting with a $25 charge 🙄 I Googled and found this app being recommended, so I downloaded it - happily, as it already had 4.9/5 star reviews. I measured my PD a total of five times and took the average of the five results to ensure my PD was as accurate at possible and ¡voila! It was perfect. THANK YOU TO THE CREATORS OF THIS APP!!!

Developer Response ,

Thank you so much for your 5 star review!

App Privacy

The developer, 6over6 vision LTD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Health & Fitness
  • Location
  • Usage Data
  • Diagnostics

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

More By This Developer

You Might Also Like

PDCheck AR
Health & Fitness
Prescription Scanner
Pupil Distance Meter - Eye PD
Health & Fitness
Eye MeasureーPupillary Distance
Health & Fitness
Virtual Vision Test