I know it seems like all Glasses.com all the time around here this week, but I just discovered the site, and the app happened to come out while I was waiting for my at-home try-on frames to arrive. This is a very detailed review of my experience and the frames, so I hope it answers any questions you might have. So far, I'm very impressed with Glasses.com, so I have no qualms about banging on about them a bit. (Let me reiterate that I am not affiliated with Glasses.com or being paid to review their products. I kinda wish someone over there would give me some free glasses, though! Sadly, I'm sure they don't even know I exist.)
Things I forgot to mention: My credit card was never charged, and I did receive an email confirmation when Glasses.com got the frames back. The message encouraged me to try a few more if I wanted to, so the at-home trial does appear to be unlimited.
