Pretend You're Xyzzy is an Android card game app that lets you enjoy the popular online card game wherever you are. The game is simple: each round, a black card is randomly chosen from the deck, and everyone answers with their funniest white card. The judge then decides which player wins.

With the free version of the app, you can play with friends on a variety of servers, customize your game, play with custom decks, and create custom decks from the app. You can even add images (from a link) to your custom deck cards, with GIFs also being supported. Additionally, you can star your favorite cards and see your lifetime metrics, such as games played.

For those who want more, the overloaded features include creating your profile, setting a custom profile image (GIFs supported), accumulating achievements and stats (cards and rounds played, rounds won), making friends, privately chatting with friends, creating collaborative custom decks, uploading images to custom deck cards, seeing your friends' starred cards and custom decks, and synchronizing your starred cards and custom decks so you never lose them.

Overall, Pretend You're Xyzzy is a great app for card game lovers who want to enjoy the game on the go and customize their experience to their liking.