MongoDB vs Firebase [closed]

MongoDB vs Firebase

What are some quantitative advantages of using Firebase over MongoDB? (not opinions)

I know that Firebase is a cloud-based service with its own API, but I feel like Mongo may give me greater control in the long run.

• Firebase is a real-time engine with backward connectivity. I.e. you might build a cross-platform app where clients subscribe to events on specific data and server actively informs clients about changes
• The data layer is hosted for you. Mind that it is highly scalable. It's a nice kickstarter solution. Including auth management
• Geo-Fire. Real-time geo coordinates solution.
• Evident drawbacks of Firebase are:
  • You have to pay for it as soon as you start growing
  • You can't host datalayer (if owning data is critical or you develop an app for some separated subnet)

EDIT: here is a nice article how to replace Firebase in your app with Node.js+MongoDb. It shows how much work you would have to do on your own, and explains, IMHO, why a startup (small app) should begin with Firebase (if real-time updates to clients are required) and proceed with MongoDb (in any case self-written solution) if the project keeps evolving

EDIT 2: after being acquired by Google Firebase now offers various perks on top of its basic features which you would struggle to build on your own:

• For development

  • Cloud Messaging: Deliver and receive messages across platforms reliably
  • File Storage: Easy file storage (including iOS)
  • Hosting: deliver static files from Firebase's servers (Included in Free plan)
  • Crash Reporting: Not a full logging service, but crucial help

• For growth

  • Remote Config: Customize your app on the fly: suitable for A/B testing
  • Dynamic Links: Send users to the right place inside your app
  • Notifications: Engage with users at the right moment

Apples and oranges. Firebase is a Backend-as-a-Service containing identity management, realtime data views and a document database. It runs in the cloud.

MongoDB on the other hand is a full fledged database with a rich query language. In principle it runs on your own machine, but there are cloud providers.

If you are looking for the database component only MongoDB is much more mature and feature-rich.