Authentication & Identity Comparison
Auth0 vs Firebase Auth
Firebase Auth wins with 80.1
Updated 2026-03-19Auth0
76.7vs
Firebase Auth
80.1Winner
Dimension Breakdown
Auth0Firebase Auth
Value
5582
Capability
9280
Experience
6880
Reliability
9088
Support
8272
Ecosystem
9085
Momentum
6562
The Verdict
Auth0 is the enterprise auth standard with SAML SSO, machine-to-machine auth, and compliance certifications. Firebase Auth is simpler and cheaper but lacks enterprise features. Use Firebase for mobile-first apps, Auth0 for B2B SaaS.
Pricing Comparison
| Tier | Auth0 | Firebase Auth |
|---|---|---|
| Free | Free | Free |
| Essentials | $35/mo | Pay as you go |
| Professional | $240/mo | - |
Feature Comparison
Auth0
- ✓ Universal Login
- ✓ Social login (50+ providers)
- ✓ MFA
- ✓ Passwordless
- ✓ Organizations
- ✓ Machine-to-machine
- ✓ Actions (serverless hooks)
- ✓ Marketplace
Firebase Auth
- ✓ Email/password
- ✓ Social login
- ✓ Phone auth
- ✓ Anonymous auth
- ✓ Custom claims
- ✓ Multi-tenancy
- ✓ Mobile SDKs
- ✓ Admin SDK
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