Do you want to track everything that you have watched? Be it TV shows, movies or anime, Trakt.tv allows you to track everything you have watched easily without costing you a penny.
The website looks classy and has a record of everything that you might want to watch. You can sign up for the free account by clicking this link: https://trakt.tv/auth/join
The free account allows you to do much stuff. You can add what, how many times, and when you have watched a particular thing. You can follow other people, participate in discussions, maintain watchlists, and much more. It gives you useful statistics about your watched content.
The VIP subscription provides a lot of cool features along with No Ads at a reasonable cost of $30 per year. It is worth the money. I would give that much money even for the free version.
I have been using it for a couple of months now. You can check my profile at https://trakt.tv/users/itsharshag