Product overview — Authentication & Identity
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Medium
Auth0
Auth0 is CIAM for product teams needing flexible customer login flows and enterprise SSO readiness. Costs typically step up as MAUs and enterprise features become mandatory.
Sources linked — see verification below.
Freshness & verification
Who is this best for?
This is the fastest way to decide whether Auth0 is in the right neighborhood.
Best for
- SaaS products needing customer login with flexible auth flows
- Teams that need enterprise SSO readiness for B2B deals
- Multi-tenant apps needing org/tenant separation patterns
- Product teams that want to avoid running identity infrastructure
- Apps that need many identity providers (social + enterprise)
Who should avoid
- You want only AWS-native primitives and minimal external dependencies
- You need ultra-low-cost auth at very high MAU scale without tier jumps
- You don’t want vendor-specific extensibility patterns
- Your auth needs are extremely simple and can be handled by Firebase
- You require full control over data residency and custom infra
Sources & verification
Pricing and behavioral information comes from public documentation and structured research. When information is incomplete or volatile, we prefer to say so rather than guess.