TL;DR - Firebase Authentication
- Backend authentication service
- Multiple sign-in methods
- Easy integration
Pricing: Free plan available
Best for: Growing teams
Pricing Plans
Spark (Free)
Free
- 50,000 MAU
- All auth methods
- Basic features
Blaze (Pay as you go)
- Unlimited MAU
- Phone auth: $0.01-0.06/verification
- Advanced features
About Firebase Authentication
Firebase Authentication provides backend services and SDKs to authenticate users in your app. Support email/password, phone auth, and popular identity providers like Google, Facebook, Twitter, and Apple. Features include email verification, password reset, anonymous auth, and custom claims for access control. Works seamlessly with other Firebase products. Drop-in UI components available for iOS, Android, and web applications.
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Firebase Authentication FAQ
Yes, Firebase Auth is free for up to 50,000 monthly active users for most auth methods. Phone auth has separate pricing.
Firebase supports email/password, phone, Google, Apple, Facebook, Twitter, GitHub, and anonymous auth.