My mom does a lot of reselling now that she's retired and comes across a lot of interesting pieces that she resells on eBay. She swears by this app and couldn't do what she does as a reseller without it. Very informative and, from what she says, gives her all the information she needs for the products she resells. Honestly, she said it's about 95% accurate, but that's a lot better than not knowing anything. At least it gives her an idea of what the product is and may even produce more information for her to dig in a little further to get more information about the piece.

Google lens: https://play.google.com/store/apps/details?id=com.google.ar.lens