It's currently a prototype, so I haven't fully finished integrating all the computer vision algorithms which means that it may miss some data in certain situations - but the purpose at this stage was just to see if this is something people would genuinely use and to get general feedback to help me decide what features to prioritise going forward.
I have a side project I've been meaning to finish, where I would definitely use something like this (basically identifying price arbitrage opportunities across luxury fashion retailers).
I will bookmark and keep an eye out for your progress.