Backend & Database
Firebase
Google's app backend: auth, Firestore database, hosting, functions and analytics
Pros
- Truly free starting tier
- Great for mobile apps and realtime data
Cons
- NoSQL data model differs from Postgres
- Usage billing can surprise at scale
backend & databasemobile appsdeploy & hostingapp building
Where it ranks
- Best for building a mobile app
Fit rank #3. Free backend for auth, data and push notifications.
Best for mobile backends on a budget. Skip if you want SQL/Postgres.
- Best backend & database for vibe coders
Fit rank #2. Free Spark tier and great realtime/mobile support.
Best for mobile and realtime apps. Skip if you want relational SQL.