Firebase Authentication
Firebase Authentication provides backend services and SDKs to authenticate users in your app.
Our verdict
Who it's for
Backend authentication by Google
Who should look elsewhere
Vendor lock-in
Pros
- +Easy to implement
- +Multiple auth methods
- +Free generous tier
- +Good security
Cons
- −Vendor lock-in
- −Limited customization
- −Part of Google ecosystem
Key features
- ✓Authentication service
- ✓Multiple providers
- ✓Anonymous auth
- ✓Phone auth
- ✓Custom claims
- ✓Security rules
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Spark (Free) | $0 | month | 50,000 MAU; All auth methods; Basic features |
| Blaze (Pay as you go) | — | month | Unlimited MAU; Phone auth: $0.01-0.06/verification; Advanced features |