Readerware Book Database - The easiest, fastest way to catalog your books, nothing else comes close.
Must App - Your personal movie assistant
Tellico - Tellico is a KDE application for organizing your collections.
Reelgood - Every streaming service in one place, from over 300 free and paid streaming services. Browse, track and watch all your TV shows and movies from one place.
Book Catalogue - This is a simple book catalogue application, to store a list of your books.
TMDb Movies & TV Shows - TMDb Movies & TV Shows app assists you in tracking all your favorite movies right on your mobile phone screen in order to watch them.