Amazon Cognito vs Supabase Auth
Answer: As of 2026-10-30: Amazon Cognito wins 1k users · no SSO at $0/mo ($0/yr less than Supabase Auth); Amazon Cognito wins 10k users · 1 SSO at $2.25/mo ($300/yr less than Supabase Auth); Supabase Auth wins 50k users · 5 SSO at $39.25/mo ($2,340/yr less than Amazon Cognito); Supabase Auth wins 100k users · 10 SSO at $54.25/mo ($5,640/yr less than Amazon Cognito).
Cost by MAU (no SSO)
| Monthly users | Amazon Cognito | Supabase Auth |
|---|---|---|
| 10k users | $0 Lite | $0 Free (platform) |
| 50k users | $220 Lite | $0 Free (platform) |
| 100k users | $495.00 Lite | $25 Pro (platform) |
With enterprise SSO
| Scenario | Amazon Cognito | Supabase Auth |
|---|---|---|
| 1k users · no SSO | $0 Lite | $0 Free (platform) |
| 10k users · 1 SSO | $2.25 Lite | $27.25 Pro (platform) |
| 50k users · 5 SSO | $234.25 Lite | $39.25 Pro (platform) |
| 100k users · 10 SSO | $524.25 Lite | $54.25 Pro (platform) |
Cheapest verified plan per vendor, monthly USD list price. How we calculate this.
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
Supabase Auth
Free: 50k MAU. Pro from $25/mo: 100k MAU then $0.00325/MAU. SAML SSO: 50 included then $0.015/MAU. Auth-only cost is entangled with the platform plan.
Source: supabase.com/pricing · 2026-10-30
Also see: Amazon Cognito alternatives · Supabase Auth alternatives · all vendors by MAU
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