The text explains the critical role of databases in app development, highlighting their function in storing, managing, and retrieving digital information. Databases are essential for apps to collect and display data, with relational databases, like those using SQL, being the most common type due to their ability to manage complex data relationships through tables. Non-relational databases, or NoSQL databases, offer flexibility and efficiency in data storage but have limitations in data retrieval. Bubble, a no-code platform, is presented as a comprehensive solution for app development, integrating design, logic, and database management into a single, user-friendly interface. This platform allows users to create apps without programming experience, addressing security, scaling, and database handling needs effectively.