What is Google Firebase?
Google's managed backend: database, auth, hosting and AI.
Who is Google Firebase best for?
Google Firebase is best for app developers who want a managed backend for web and mobile apps without running servers.
Mobile and web app backends
Firestore, Realtime Database, Authentication and Cloud Storage come with SDKs for Apple platforms, Android, the web, Flutter, Unity and C++.
Prototypes on no budget
The Spark plan needs no payment method and covers 50K Firestore reads a day and sign-in for up to 50K monthly users.
Adding Gemini to an app
Firebase AI Logic connects your app to Gemini models, billed at Gemini Developer API or Google Cloud rates.
Shipping and monitoring releases
Crashlytics, Performance Monitoring, Remote Config and App Distribution handle crash reports, rollouts and tester builds, and most of them cost nothing.
How much does Google Firebase cost?
Google Firebase is free on the Spark plan within daily and monthly limits, and the pay-as-you-go Blaze plan keeps those free amounts and bills only what goes beyond them, such as $0.40 per million Cloud Functions calls after the first 2 million a month.
- Firestore: 1 GiB stored, 50K reads and 20K writes a day
- Hosting: 10 GB storage and 360 MB of transfer a day
- Sign-in free up to 50K monthly active users
- Spark's free usage included, counted daily
- Cloud Functions: 2M calls a month free, then $0.40 per million
- Hosting transfer $0.15 per GB, Realtime Database storage $5 per GB beyond the free amounts
Analytics, Crashlytics, Cloud Messaging, A/B Testing, App Distribution, In-App Messaging and Performance Monitoring are free on both plans. Cloud Functions, Cloud Storage, App Hosting and phone sign-in (billed per SMS) need Blaze. Firebase AI Logic is billed at Gemini Developer API or Google Cloud rates. The Cloud SQL database behind SQL Connect has a 3-month free trial, then starts at $9.37 a month. Firebase Studio is free for 3 workspaces. Some prices vary by location. Full pricing on firebase.google.com. We checked these prices on .
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What are the best Google Firebase alternatives?
Two tools on Recaply do Google Firebase's job. Both are open source, so you can run them on your own server.
Questions about Google Firebase
What is Google Firebase?
Google's managed backend: database, auth, hosting and AI.
Who is Google Firebase for?
Google Firebase is best for app developers who want a managed backend for web and mobile apps without running servers.
Is Gemini in Firebase free?
Yes. Gemini in Firebase, the AI help inside the Firebase console, Crashlytics, Messaging and SQL Connect, costs nothing. Calling Gemini models from your own app through Firebase AI Logic is different: that use is billed at Gemini Developer API or Google Cloud rates.
Is there an open source alternative to Google Firebase?
Yes. Appwrite and Supabase are open source tools that do the same job, so you can run your own.
What are the best Google Firebase alternatives?
The closest alternatives on Recaply are Appwrite and Supabase.
Where can I try Google Firebase?
On its official website, firebase.google.com.
When do I need the Firebase Blaze plan?
You need Blaze for Cloud Functions, Cloud Storage, App Hosting, phone sign-in, more than one Realtime Database per project, or any use past Spark's free limits. Blaze keeps the same free amounts and bills only what goes beyond them, so a small app on Blaze can still cost nothing.
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