It seems like Firestore is meant to replace their old realtime DB eventually. They have a good comparison page on them: https://firebase.google.com/docs/databa

It seems like Firestore is meant to replace their old realtime DB eventually. They have a good comparison page on them: https://firebase.google.com/docs/database/rtdb-vs-firestore https://firebase.google.com/docs/database/rtdb-vs-firestore