Backend as a Service (BaaS) is a cloud-based model offering prebuilt and managed backend infrastructure, designed to ease the development process by handling server configuration, database management, authentication, and notifications. BaaS allows developers to focus on creating unique app features by offloading the complex and time-consuming tasks of backend development, reducing both operational costs and security risks. This model can significantly accelerate app deployment, offering a competitive advantage by ensuring faster market entry and enhanced scalability. Mobile Backend as a Service (MBaaS) caters specifically to mobile applications, providing additional features like push notifications and offline data synchronization. While BaaS offers numerous advantages such as reduced development time and improved user experience, it may pose challenges like limited customizability and potential vendor lock-in. Developers can mitigate these issues by selecting BaaS providers with flexible features and export options. BaaS can be combined with Frontend as a Service (FEaaS) to further streamline the development process, thereby enhancing efficiency and reducing costs across the project lifecycle.