Auth0 vs Amazon Cognito
Answer: As of 2026-10-30: Auth0 wins 1k users · no SSO at $0/mo ($0/yr less than Amazon Cognito); Auth0 wins 10k users · 1 SSO at $0/mo ($27/yr less than Amazon Cognito).
Cost by MAU (no SSO)
| Monthly users | Auth0 | Amazon Cognito |
|---|---|---|
| 10k users | $0 Free | $0 Lite |
| 50k users | — | $220 Lite |
| 100k users | — | $495.00 Lite |
With enterprise SSO
| Scenario | Auth0 | Amazon Cognito |
|---|---|---|
| 1k users · no SSO | $0 Free | $0 Lite |
| 10k users · 1 SSO | $0 Free | $2.25 Lite |
| 50k users · 5 SSO | — | $234.25 Lite |
| 100k users · 10 SSO | — | $524.25 Lite |
Cheapest verified plan per vendor, monthly USD list price. How we calculate this.
Auth0
Free to 25k MAU with 1 Enterprise Connection, Self-Service SSO and inbound SCIM. B2C Essentials $35/mo and Professional $240/mo are published at up to 500 MAU; higher MAU and B2B volume tiers are custom.
Source: auth0.com/pricing · 2026-10-30
Amazon Cognito
Essentials (default) free 10k MAU then $0.015/MAU (direct/social). Lite free 10k then $0.0055 / $0.0046 bands. Plus $0.020/MAU no free tier. Federated SAML/OIDC: 50 free then $0.015/MAU.
Source: aws.amazon.com/cognito/pricing/ · 2026-10-30
Also see: Auth0 alternatives · Amazon Cognito alternatives · all vendors by MAU
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