MongoDB vs Firebase | Which is Better? | NoSQL | Data Security | Authentication |

Wondering which one is better? MongoDB or Firebase
MongoDB is a versatile NoSQL database known for its flexibility in handling complex data structures and offering robust querying capabilities. It's ideal for applications that require scalability and intricate data manipulation.
Firebase, developed by Google, provides a real-time database and a suite of services for web and mobile app development. Its strength lies in real-time data synchronization across multiple devices, making it perfect for applications like live chat or gaming apps that demand immediate data updates. Firebase also offers additional integrated services for streamlined app development. Choosing between MongoDB and Firebase depends on specific application needs, with MongoDB suited for diverse data handling and Firebase tailored for real-time data synchronization and rapid app development.
What us MongoDB?
MongoDB is a popular, open-source NoSQL database that stores data in flexible, JSON-like documents. It's designed for scalability, flexibility, and high performance, allowing for efficient handling of large volumes of data across various applications.
What is Firebase?
Firebase is a comprehensive mobile and web application development platform offered by Google. It provides a suite of services including real-time database, authentication, hosting, cloud functions, and more, allowing developers to build, manage, and grow their applications quickly.
What is Authentication?
Authentication is the process of verifying the identity of users or entities trying to access a system, application, or resource. It ensures that only authorized users are granted access, usually through methods like passwords, biometrics, tokens, or other secure means.
What is Stability?
Stability refers to the reliability, consistency, and robustness of a system or application. In the context of software or technology, stability implies that the system operates without unexpected crashes, errors, or failures, maintaining its functionality consistently over time and under varying conditions.
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[@ajdinpipo08]

So for example, if I want to build web app for rental car, which should I pick regarding what you said?

[@techplanet001]

Firebase

[@NikkiKumari-ie9jf]

​@@techplanet001and if i want to build an super app by using flutter and want to start a startup which should i use for database mongodb or firebase ?? and for backend only firebase is ok or i have to use other lang. also like nodejs ?? and also should i use aws or firebase aws??