Sites and apps similar to Tvmarks include IMDb, which has a free version. Other options are Tonkatsu Box, Simkl, Trakt.tv and Letterboxd. You're spoiled for choice with Movie Databases like Tvmarks: we list more than 50 alternatives for Android, iPhone, iPad, self-hosting and Mac.
Suggestream is a movie and T.V. show recommendation app that will allow you to discover unknown and strange movies/shows, but has also a few limitations. The more movies/shows you rate, the better the recommendations become.
Cinematics: The Movie Guide for Android (a TMDb client): The fastest, easiest way to find and discover movies, actors and shows on your device. Includes The Movie Database (TMDb), IMDb, Metacritic, and Rotten Tomatoes ratings and reviews!
