PopSign is an educational bubble shooter game developed by the Georgia Institute of Technology and RIT/NTID's Center on Access Technology. This iPhone game aims to teach over 500 American Sign Language (ASL) signs based on the MacArthur-Bates Communicative Development Inventories. The game's main objective is to provide a fun and interactive way for users to learn ASL, especially those who are hearing and want to communicate with the deaf community.

One of the significant challenges faced by deaf infants is the lack of access to sign language when born to hearing parents. This game aims to bridge that gap by providing a platform to learn ASL signs effectively. By matching videos of ASL signs with bubbles containing written English words, players can pop them and reinforce their learning. This gamified approach makes learning ASL engaging and accessible to a wide range of users.

PopSign is a free game available on the iPhone platform. It falls under the Education & Reference category and is a valuable resource for anyone interested in learning American Sign Language.