3 stars: Good... But can't be used to measure some walls and window isles for some reason, I'm guessing it has to do with a lack of colour/contrast differences, if the edges are the same colour it has difficulty.. needs to enhance the image contrast in the background to do better edge/wall detection.. otherwise it's fun, but not useful for real world use when you actually need to measure something for construction or buying window shades etc...
5 stars: *UPDATE 1/9/20* - Not sure when, but a recent update has fixed it so the app works well on my phone now. ORIGINAL - The last update broke this app. I used to have no problems with it, but now i just get a white screen when i open it.
4 stars: Good app, would be better if it was merged into the Google Camera app.
3 stars: Needs a lot of stability improvements. App with great potential though.
5 stars: Truly amazing! When I first saw this app being used, I thought it was an elaborate trick. Great for doing rough estimates.
5 stars: Best ar ruler as of now.. But this is still far from perfect.. The markers are unstable.. Difficult to hold it steady.
5 stars: Great for estimates! I think at most there was up to 5% difference in measurements from looking at an inch off for 5 feet and half a centimeter for 60 cms
5 stars: Incredible, works perfectly and it's Sooooo useful, I mean, who tf walk with a measurement tape on the pocket?
3 stars: Used to work but now I can't get past the move phone from left...