Expanse is an open blockchain platform that lets anyone build and use decentralized applications that run on blockchain technology. Like Bitcoin, no one controls or owns Expanse – it is an open-source project built by many people around the world. But unlike the Bitcoin protocol, Expanse was designed to be adaptable and flexible. It is easy to create new applications on the Expanse platform, and with the Homestead release, it is now safe for anyone to use those applications.