Sites and apps similar to Series Reminder include Simkl, which has a free version. Other options are Trakt.tv, SeriesGuide, Next Episode and Episode Calendar. You can choose from more than 10 Episode Trackers like Series Reminder for Android, iPhone, iPad and Chrome OS.
Track an unlimited amount of TV shows with PogDesign's TV Calendar.
You can change the website's design (layout/style), you can have a public profile and you can mark shows as watched/unwatched.
TV Episode Guide and tracker is an episode tracker that shows you all the latest TV show and episode guide information from your favourite TV shows.
