I thought this would be a good way to quickly scan instax prints, similar to Polaroids's app for their prints. Not really. The scanning features seem to be good, until I realized that I was only getting low resolution scans, with a big boxy blank area around the print. Sure, you can decorate that outside area with different backgrounds if that's what you're looking for, but for those of us that just want decent digital copies of our prints, this is not instaxUPScaninstaxphotos to do it.
This is more of a share your photos in a cutesy way kind of app, not a good choice to backup or share your photos in high resolution. (Clearly they are aiming at a younger demographic) I would recommend Polaroid's app instead, or Google scan for decent scans. It's too bad, because I've certainly bought plenty of Fuji film over the years. But I can't recommend instaxUPScaninstaxphotos.