Blockchain app development involves creating decentralized applications (dApps) that run on blockchain networks, enabling transparent and secure interactions without a central authority. These apps leverage smart contracts to automate processes like transactions, authentication, and record-keeping. Blockchain apps are widely used in sectors like finance, supply chain management, healthcare, and real estate. Developers focus on scalability, security, and user experience when building blockchain apps. Blockchain app development offers businesses innovative solutions for automation, efficiency, and enhanced data integrity.