"Don't just save data. Sync it.
When data changes, apps built with Firebaseupdate instantly across every device -- web or mobile. Firebase-powered apps work offline. Data is synchronized instantly when your app regains connectivity.
"Works on every platform
Firebase has full-featured libraries for all major web and mobile platforms andbindings for the most popular frameworks. Need something special? Don't worry, our REST API has you covered."
143 000 developer downloads; Now part of Google.