Build vs Auth0
The auth platform. Feature-complete, enterprise-ready.
Strengths
- Feature complete
- Enterprise SSO
- Good docs
- Compliance
- Extensible
Weaknesses
- Expensive
- Can be complex
- Pricing unpredictable
- Okta acquisition concerns
Build / Vibe when...
- Basic email + OAuth only
- Using framework auth
- Auth0 pricing is prohibitive
Buy Auth0 when...
- Enterprise customers need SSO
- Compliance matters
- MFA required
- Complex auth flows
Our Verdict
Start with Supabase Auth or NextAuth (free). Buy Auth0 when enterprise customers demand SSO/SAML. Clerk is often a better value.