Guess What Wall Lab is an educational game developed by Wall Lab for iPhone. This game is a research study conducted by Stanford University for parents of children aged 1.5 to 12 years. The goal of this game is to help researchers analyze behaviors expressed by children while interacting with family members via home video using machine learning and artificial intelligence.

In Guess What Wall Lab, players can choose from a variety of different decks and enjoy playing charades with their kids. Additionally, players have the option to contribute to research on developmental delay by sharing their videos with the research team.

The game also offers an in-app survey where players can leave feedback. Their suggestions may even appear in future updates of the game. Guess What Wall Lab provides an interactive and engaging way for parents to participate in research while having fun with their children.