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Firebase is geared towards building applications that need to update their data in realtime. When you change data in Firebase (either by adding data or modifying something that's already there), all connected clients are notified of the change, allowing you to update your UI to match the new data. While many people use it as a backend, it really shines when you take advantage of these notifications.

Ah OK. Thanks for the info. It saves you having to write a database system, the API and implement web sockets then. Thanks!

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