Side-by-side comparison of free tiers, pricing changes, and stability. Catalogue dates here run to 2026-11-01.
Quick Verdict: Auth0 is the established enterprise auth platform with 25K MAU free. Kinde is the newer contender offering 10.5K MAU with feature flags included. Auth0 has deeper enterprise features; Kinde bundles more value per dollar.
Identity platform — 25K MAU (B2C), unlimited logins, social + database connections, Universal Login, 1 Enterprise Connection, 5 Organizations, 1 Custom Domain. No credit card required
Using the Free plan's custom domain requires a valid credit card on file for verification and fraud prevention. Auth0 does not charge it. (From auth0.com/docs/customize/custom-domains, read 2026-10-08.)
Free MAU: Auth0 offers 25K MAU — more than double Kinde's 10.5K MAU. For pure free tier size, Auth0 wins.
Bundled features: Kinde includes feature flags (10K events/month) in its free tier — no need for a separate LaunchDarkly or Flagsmith. Auth0 doesn't include feature management.
Enterprise maturity: Auth0 has been around since 2013 (acquired by Okta). Kinde launched in 2023. Auth0 has deeper docs, more integrations, and a larger community.
Multi-tenancy: Both support organizations/multi-tenancy, but Auth0's Organizations feature is more battle-tested for complex B2B scenarios.
Pricing Change History
Auth0
deprecatedeffective 2028-01-31medium impact
Auth0 keeps running. Auth0 Rules reach end of life on January 31, 2028, when they stop running and are removed. They have been read-only since November 18, 2024, and tenants created from October 16, 2023 never had them. Auth0 says to move to Actions. Source ↗
deprecatedeffective 2027-04-30medium impact
Auth0 keeps running. Auth0 Hooks reach end of life on April 30, 2027, when they stop running and are removed. They have been read-only since November 18, 2024, and tenants created from October 16, 2023 never had them. Auth0 says to move to Actions. Source ↗
increasedeffective 2024-09-24high impact
Auth0's Free plan went from 7,500 to 25,000 monthly active users, with unlimited social and Okta connections, Organizations, Passwordless authentication and a custom domain. Auth0 announced it on 2024-09-24, available that day. Source ↗
Kinde
No recorded pricing changes for Kinde.
Our Recommendation
Choose Auth0 if you need the largest free MAU count, enterprise-grade stability, or deep integrations with the Okta ecosystem.
Choose Kinde if you want auth + feature flags in one service, prefer a simpler setup experience, or are building an early-stage product that values bundled functionality over enterprise depth.
Auth0 is the established enterprise auth platform with 25K MAU free. Kinde is the newer contender offering 10.5K MAU with feature flags included. Auth0 has deeper enterprise features; Kinde bundles more value per dollar.
What is Auth0's free tier?
Auth0 offers a Free plan: Identity platform — 25K MAU (B2C), unlimited logins, social + database connections, Universal Login, 1 Enterprise Connection, 5 Organizations, 1 Custom Domain. No credit card required. Using the Free plan's custom domain requires a valid credit card on file for verification and fraud prevention. Auth0 does not charge it. (From https://auth0.com/docs/customize/custom-domains, read 2026-10-08.)
Choose Auth0 if you need the largest free MAU count, enterprise-grade stability, or deep integrations with the Okta ecosystem. Choose Kinde if you want auth + feature flags in one service, prefer a simpler setup experience, or are building an early-stage product that values bundled functionality over enterprise depth.