That's You! is a companion app designed for the PlayStation 4 system to play the hilarious party game. Developed by PlayStation Mobile, this full version app acts as a controller for the That's You! game and requires the game and the PlayStation 4 system to play. The game is categorized as an adventure game and is perfect for playing with friends.

Using the That's You! app, players can swipe, type, snap and draw their answers for the PS4 game. The app allows players to take pictures of themselves and their friends, and then doodle on them to answer the game questions. It also provides an option for players to create their own word and picture questions to play on PS4. Additionally, players can play 'Pass It On' using just the app to get a taste of the full PS4 experience. The app also lets players share their pictures and questions on social media.

The app supports multiple languages, including English, French, German, Italian, Spanish, Dutch, Portuguese, Swedish, Danish, Norwegian, Finnish, Russian, Polish, Turkish, Brazilian Portuguese, and Mexican Spanish. However, it is important to note that the app requires the That's You! game and the PlayStation 4 system to play, which are sold separately.