BeFourTec, founded in 2014, specializes in designing various types of apps, ranging from communication tools to games, with a focus on delivering exceptional user experiences. Their first app, Shake and Bla (SBLA), is a social game that aims to revive verbal communication. To join the SBLA community, users can download the free app and register using a username, password, and email address for password retrieval purposes. No personal data is required for registration.