Firebase Vs MongoDB – Out of The Two Which One To Choose?
https://www.xongolab.com/blog/firebase-vs-mongodb/
Confused about choosing the best database between Firebase vs MongoDB? In this blog, we have mentioned a detailed comparison of which database is better for web or app development.
I feel interms of real time data updates and sync for features such as messaging, notifications etc. firebase can be really good. Although can tend to get really expensive. Personally MongoDB wins for be in terms of flexibility and overall performance
I am using Firebase, not only for database but for everything (hosting and cloud functions). Highly recommend