Showly is described as '2.0 is free, open source, modern TV Shows tracking app' and is an app in the Video & Movies category. There are more than 25 alternatives to Showly for a variety of platforms, including Online / Web-based, Android, iPhone, iPad and Android Tablet. The best alternative is Trakt.tv, which is free. Other great apps like Showly are Simkl (Freemium), TV Time (Free), SeriesGuide (Free Personal, Open Source) and Flox (Free, Open Source).
Simkl is a TV, anime, and movie tracker that keeps a history of all the shows and movies you watch in one, central location. It’s a mobile app, a website, Google Chrome extension to keep track of everything you watch and integrates with many TV apps.
Find shows to track SeriesGuide suggests currently trending shows (powered by trakt) and is backed by the huge TV show catalog of TheTVDb. Even access your trakt recommendations and library after connecting your account.