DApps, or decentralized applications, are fundamentally different from the apps we use in our daily lives. Data in ordinary apps is stored on centralized servers, giving platforms control to ban accounts and modify data. DApps run on public blockchains, with open-source code and data stored in a distributed manner across multiple nodes, without any single institution in control. Users control access to their own data and assets, while transactions and operations are automatically executed by smart contracts, with no need for third-party intermediaries. OpenSky Social on the Anwang public blockchain is one such DApp. DApps are an important vehicle for implementing Web3 and represent blockchain technology's move into the mainstream.