Auth & Backend · side by side
Firebase Auth vs WorkOS
Compare Firebase Auth, WorkOS by active-user allowances, social login, MFA, SSO, organizations and audit logs.
Auth & Backend pricing calculator
These providers bill in different units. Each estimate uses its own workload; there is no same-volume price winner.
Firebase Auth
WorkOS
Firebase Auth
$0 / mo
Spark · 25K MAUs
WorkOS
$0 / mo
AuthKit · 50K monthly active users
Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.
Auth & Backend overview & pricing
| Auth & Backend | Firebase Auth | WorkOS |
|---|---|---|
| Provider | WorkOS | |
| Billing unit | MAUs | monthly active users |
| Plan at selected usage | Spark | AuthKit |
| Monthly estimate | $0/mo | $0/mo |
| Workload | 25K MAUs | 50K monthly active users |
| Free access | 50,000 MAUs | 1M MAUs free (AuthKit) |
| Published plans | Spark, Blaze | AuthKit, Enterprise |
| Prices checked | Not listed | Not listed |
- Firebase Auth
- WorkOS
- WorkOS
- Firebase Auth
- MAUs
- WorkOS
- monthly active users
- Firebase Auth
- Spark
- WorkOS
- AuthKit
- Firebase Auth
- $0/mo
- WorkOS
- $0/mo
- Firebase Auth
- 25K MAUs
- WorkOS
- 50K monthly active users
- Firebase Auth
- 50,000 MAUs
- WorkOS
- 1M MAUs free (AuthKit)
- Firebase Auth
- Spark, Blaze
- WorkOS
- AuthKit, Enterprise
- Firebase Auth
- Not listed
- WorkOS
- Not listed
Auth & Backend monthly cost
Different workloads, separate estimates
Check how each provider defines an active user and separates consumer identity from enterprise organizations. SAML, MFA, custom domains and audit logs can be gated behind higher plans. A backend platform can also charge separately for storage, functions and traffic.
Auth & Backend feature comparison
| Auth & Backend | Firebase Auth | WorkOS |
|---|---|---|
| Monthly active users | 50,000 MAUs | 1M MAUs free |
| Social login | Google, Apple, GitHub… | |
| MFA / passkeys | SMS MFA (Blaze) | |
| Enterprise SSO (SAML) | $125/connection | |
| Organizations / B2B | Multi-tenancy (Blaze) | |
| Branding & custom domain | Basic | Custom domain $99/mo |
| Audit logs | Cloud Logging | Audit logs add-on |
| Support | Community |
- Firebase Auth
- 50,000 MAUs
- WorkOS
- 1M MAUs free
- Firebase Auth
- Google, Apple, GitHub…
- WorkOS
- Firebase Auth
- SMS MFA (Blaze)
- WorkOS
- Firebase Auth
- WorkOS
- $125/connection
- Firebase Auth
- Multi-tenancy (Blaze)
- WorkOS
- Firebase Auth
- Basic
- WorkOS
- Custom domain $99/mo
- Firebase Auth
- Cloud Logging
- WorkOS
- Audit logs add-on
- Firebase Auth
- Community
- WorkOS
Which authentication & backend providers fit your needs?
How to compare authentication & backend providers
Check how each provider defines an active user and separates consumer identity from enterprise organizations. SAML, MFA, custom domains and audit logs can be gated behind higher plans. A backend platform can also charge separately for storage, functions and traffic.
Browse Auth & Backend pricing