Great app  just make sure to export your collection before upgrading Android On Android Nougat 7.1 it's has become impossible to sync your collection across devices rendering the cloud sync feature useless. This error appears when trying to login. Note: This error might happen when upgrading to Android 7  but a simple reinstallation should fix it so make sure to backup your collection beforehand. I've updated the review score to reflect this. A clean install SHOULDN'T encounter this issue so it's only relevant for previous users.
October 31 2016