I must admit I was a little skeptical about Simple Contacts at first, but now I'm a satisfied customer! I was surprised how easy it was to enter in my current lens prescription by scanning the barcode on the lens packaging using the app. Simple Contacts was also able to renew my expired prescription for another year. All I had to do was follow the simple eye test in the app and submit my results. In less than a week, my new contacts were at my door! Prices were pretty fair too, and I had a promo code which saved me even more. Not to mention a trip to the optometrist. The only reason Simple Contacts does not get a 5/5 stars from me is because the mobile app was pretty glitchy at times. Basically the forward facing camera would turn off completely during the eye test and buttons in the app would randomly stop working. Not sure if this is due to a bug in the app's programing or if my security app was interfering with it. Since it was a new app and it was continually accessing my cell's cameras and microphone. My security app doesn't like that, it sees it as a hacker's attempt to spy on or record me without my knowledge. Wasn't too much of a hassle though. The simple fix was to close and relaunch the app, which saved my progress with each reset.