Auth0 vs SuperTokens
Pricing
Auth0: Free up to 7k MAU, from $23/mo
SuperTokens: Free self-hosted, managed from $0 (up to 5k MAU)
Description
Auth0: Enterprise-grade auth that handles every login method, from social login to SAML SSO
SuperTokens: Open-source authentication you can self-host for free or use their managed service
Pros
- Supports every auth method: social, email, passwordless, SAML, LDAP
- 7,000 MAU free tier is solid for early-stage products
- Battle-tested at scale, used by thousands of companies
- Fully open source (Apache 2.0): inspect every line, fork it, no vendor lock-in
- Self-hosted option means zero recurring cost for auth, ever
- Pre-built login UI with session management, MFA, and social login
Cons
- Way more complex than you need if you just want Google login
- Pricing tiers jump steeply: you can go from free to $240/mo quickly
- Documentation is extensive but can be hard to navigate
- Self-hosting requires running a Java backend service alongside your app
- Smaller community and fewer integrations compared to Auth0 or Clerk
- Documentation covers the basics but thins out for advanced customization
Details
Auth0 is the auth provider you pick when your app needs enterprise features: SAML SSO, LDAP, MFA policies, organization management. It supports every login method that exists and has been battle-tested by companies from startups to Fortune 500s. It is now part of Okta.
For solo founders, Auth0 is often more than you need. If you just want social login and email/password, Clerk or Supabase Auth is simpler and faster to set up. Where Auth0 earns its complexity is when you need to sell to companies that require SSO, or when compliance demands specific auth flows. Start with something simpler and migrate to Auth0 when enterprise requirements show up.
SuperTokens is an open-source auth provider that gives you a real alternative to paying per-user fees. Self-host the SuperTokens core (a Java service) alongside your app, and you get email/password, social login, passwordless, session management, and MFA without paying anyone anything. The managed version is free up to 5,000 MAU if you do not want to run infrastructure.
The tradeoff is operational complexity. Self-hosting means you own the auth infrastructure: updates, monitoring, backups. The core service runs on Java, which adds a dependency some teams would rather avoid. If you are building a product where long-term auth costs matter (high user count, thin margins), SuperTokens can save you thousands per year. If you just want auth working in an afternoon and do not mind paying Clerk or Auth0 later, those are faster to set up.
Verified
