Released in both the iOS and Android app stores, the Game of Thrones Companion serves as an easy, $0.99 refresher to the lands of Westeros and beyond. The app is a fan-compiled encyclopedia of creative commons sourced background information. Included is every character and house covered in all of the Song of Ice and Fire series books published to date. It’s an immense collection of information, so be warned, there are spoilers abound from all four books. It’s the perfect way to bone up on your trivia before Game of Thrones becomes what everybody is talking about.