When comparing Trakt vs taste.io, the Slant community recommends Trakt for most people. In the question“What are the best movie recommendation websites?” Trakt is ranked 2nd while taste.io is ranked 11th. The most important reason people chose Trakt is:
The Trakt.tv API powers hundreds of apps on all the popular platforms like Kodi, Plex, MediaPortal, VLC, iOS, Android, Apple TV, Apple Watch, and more.
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Pros
Pro Multi-platform support
The Trakt.tv API powers hundreds of apps on all the popular platforms like Kodi, Plex, MediaPortal, VLC, iOS, Android, Apple TV, Apple Watch, and more.
Pro Auto scrobbling
It integrates with your media center or home theater PC to enable scrobbling, so everything is automatic.
Pro Recommendation engine
Based on your favorites, trakt recommends additional shows and movies you'll enjoy
Pro TV series recommendations
Recommends TV series as well.
Pro Personalized recommendations
You build your taste on website and it gives recommendations instead of generic ranking.
Pro Easy search
Search works really good.
Pro Link to streaming services
Gives direct links to Netflix, Amazon Prime, Hulu, HBO Now.
Pro When to watch
Movie is also classified into if it should be watched with friends, family or self.
Cons
Con Not great support for non-english shows
Will only show content that has english titles. So even though the show you are looking for can have all the metadata with name, posters descriptions etc on "source" portals it will not appear on trakt unless it has english metadata to come with it.
Con Adding new shows/movies can be proven tricky
In order to add new shows you often need to jump through hoops via different sites (which differ for movies and tv shows).
The shows MUST have english title to be added at all.
Con Takes a lot of time to build your profile/taste.
I you were to start building your taste on the website, expect 1 to 2 hours of manually entering your ratings for movies you have seen. After that the recommendation is really good.
Con Few anime suggestions
There are very few anime in the database, mostly that are available on Netflix.