Ranked in these QuestionsQuestion Ranking
Pro Supports many cloud services
Pro Scans automatically for music in the cloud and adds it to the music library
Without downloading the actual song unless wished otherwise.
Pro Adds artwork
Where it finds it, the app automatically adds artwork (it's an option that can be switched on/off).
Pro Free version available
Pro Support for Dropbox
Pro Support for Microsoft OneDrive
Pro Support for Google Drive
Pro Support for Box
Pro Support for MEGA
Pro Support for Nextcloud
Con Scan for new Music on the cloud server quite slow
Maybe it's a feature and supposed to save resources, but scanning the online library for the first time takes its time.