Pupil Meter App Reviews

Bought this app despite the bad reviews. Its very easy to use and (hopefully) pretty accurate, too.

If you really need accuracy (and you do unless you want your glasses to make the world look wonky), this wont get you in the right range. If you do try it, track down a YouTube video for instructions. The instructions on the app itself are baffling.

I tried this app despite other reviews and it works great! Very accurate and easy to use. Make sure you are in a well lit area to see whites and pupils of eyes, and make sure you are looking at lens with a "thousand yard stare". The reason the measurements for other users were off is because you have to use the straight lines to first measure the credit card width and then use the pupil measurement lines. Use it for the outside sales events we do.

Helpful in figuring out the PD, but it has some limitations. One fixable limitation is that it would be easier to use if it allowed one to rotate the picture as will as zoom and center. Surprisingly difficult to take a perfectly level photo of oneself! Another fixable minor item is the app setting says credit card is 86.5mm but googling this says 85.6mm - easily fixable by a custom width. The more challenging limitations are: (1) for measurements relative to the credit card width to be accurate, the distance form the camera to the credit card needs to be exactly the distance form the camera to the pupils. The more I tried to figure out how to tilt the head to compensate, the less confident I was it was accurate. The front facing camera is at the top of the iPhone so the distance to the pupils is closer than the credit card. Trying the credit card on the forehead just above the pupils may be a bit more accurate, though the pupils are always a bit more inset that the credit card will be. If I spend half a day I could probably use my physics background to do some calculations so that if the camera is level with the eyes the math is built into the app for the credit card just below the nose…that might be a good improvement for the next version. (2) Very, very difficult to try to do a distant stare so the distance PD is measured and not a close PD focused not the camera just a foot away. For the next version might be good to incorporate some physics calculations into the math so that you do focus at 1 foot on the camera and the app give both the close PD and then calculates a distant PD. Those 2 changes would certainly deserve a 5 star

I tried all the suggestions from the individuals below who said it works. I did it so many times and kept getting around 57mm. I figured great, a consistent number it must be right. Then i had my optometrist measure it and it came back at 66mm. Way off. Dont waste your money. And for the people who accepted the value because it gave you a consistent number, dont be foolish. Measure it manually, its not hard.

Ignore the bad reviews of this app; those people are not using it correctly. If you use a credit card as the reference, take a half-decent picture of yourself with the front-facing camera, and remember to first measure the card using the "virtual calipers" before measuring your eyes, you will get consistent accurate results. The only thing this app cant do is provide the "split" distances as a result of asymmetry of the face. I got consistent readings of 60 to 61mm. I then went to the optometrist after deciding not to purchase glasses on-line, and the measurement they took was 29.5/31.5 (split). In other words, 61mm. Not too shabby.

I tested several apps and this was the closest. However, do yourself a favor and download a pupillary distance print out for free. Measure each eye separately... Make sure it has a cut out for your nose.

Gave me a pupil distance of a child.

Unintuitive, worthless app

Does not work. Terrible. Dont buy this app

I want a refund. Would rate the zero but the system wont allow it.