Heads Up!: An iPhone app made by Ellen DeGeneres has gone viral as a great party game. Kind of like the game Catch Phrase, a player in Heads Up holds a phone to their head and it displays a word. It's their job to then guess the word as the other players in the game try to describe it without using the word. The game is designed to catch funny moments because it will video record each round of guessing so you can share your triumphs (or miserable failures) with others online.
Evil Apples: This one is for adults only. Inspired by games like Cards Against Humanity and Apples to Apples, Evil Apples is a game you can play as a group on your phone for free. With three friends in the same room, or in an online round, you takes turns answering funny questions — like a fill in the blank for what's kid tested and mother approved. All the answers tend to be raunchy or terrible, so play this with a crowd that has your same sense of humor.
Bounden: Made by the Dutch National ballet, this game for two people teaches you how to dance, but not just by showing you the steps. Instead, you and a partner hold the edges of a phone and try to maneuver a small cursor over a three-dimensional ball. It sounds harder than it is, but without realizing it, your body will dance to the music as you move it around. Just make sure you don't drop your phone as you dance.