Plai.tv

Simple and free app to curate and share “miniseries” style video playlists of videos your favourite from any URL (i.e. YouTube, Vimeo etc.) or upload. Mix your own content with that from others to create easy tutorials, highlights videos and more.

Simple and free app to organize videos from different sites in private playlists. Great if you want to save/watch videos from different providers in one place. Supports a lot of providers with more to come.