BlueSky Social is a free social networking application for mobile devices developed by BlueSky PBLLC. It is a social media platform in development by former Twitter CEO Jack Dorsey. The platform aims to be decentralized and open, allowing users and creators to create freely without being locked into a single platform. It boasts a new technology called AT Protocol, which gives users control over their online algorithms. The app is still in active development and not yet available to the public, but interested users can join the beta program.