Trakt.tv is a platform that does many things, but primarily keeps track of TV shows and movies you watch. It integrates with media centers (like Kodi) to enable scrobbling, so everything is automatic. Discover new shows and movies, follow people with similar tastes and voice your opinion by using the Trakt.tv website.
Kodi is a free and open source media center for playing videos, music, pictures, games, and more. Kodi runs on Linux, OS X, Windows, iOS, and Android. Learn more and install from Kodi’s website.
wako supports third party add-ons created by the community. These add-ons will add some new feature to wako. You can install add-ons in wako's settings.
If you want to create your own add-on, follow the instructions on: https://github.com/wako-app/addon-starter-kit