Playlists are the collections of photos that are downloaded or being read in the frame. It is also allowed to customize the order of the photos for playback on the frame. All Photos in a Playlist are also copies of Photos from an Album. Your Playlists may be enabled/disabled or whenever you want to see them in your frame.
Albums/Content Library is the main storage of the account where the photos that have in the account are stored. You will notice that the photos are segregated based on who uploaded them. Albums are the place where original photos are backed up on the Nixplay Cloud.
GOOD TO KNOW: Photos initially uploaded in the Playlists are automatically found inside the Albums called. But, if you initially upload the photos inside the Albums, they will not be in the Playlists unless you add them after.
My Uploads are the ones uploaded using the account while the others are based on the email address or Nixplay accounts of friends sending you photos. You can also add an album separately and name them to your preference.