Amazon Cognito vs WorkOS
Answer: As of 2026-10-30: Amazon Cognito wins 1k users · no SSO at $0/mo ($0/yr less than WorkOS); Amazon Cognito wins 10k users · 1 SSO at $2.25/mo ($1,473/yr less than WorkOS); Amazon Cognito wins 50k users · 5 SSO at $234.25/mo ($4,689/yr less than WorkOS); Amazon Cognito wins 100k users · 10 SSO at $524.25/mo ($8,709/yr less than WorkOS).
Cost by MAU (no SSO)
| Monthly users | Amazon Cognito | WorkOS |
|---|---|---|
| 10k users | $0 Lite | $0 AuthKit |
| 50k users | $220 Lite | $0 AuthKit |
| 100k users | $495.00 Lite | $0 AuthKit |
With enterprise SSO
| Scenario | Amazon Cognito | WorkOS |
|---|---|---|
| 1k users · no SSO | $0 Lite | $0 AuthKit |
| 10k users · 1 SSO | $2.25 Lite | $125 AuthKit |
| 50k users · 5 SSO | $234.25 Lite | $625 AuthKit |
| 100k users · 10 SSO | $524.25 Lite | $1250 AuthKit |
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
WorkOS
AuthKit free to 1M MAU then $2,500/mo per additional 1M. SSO and Directory Sync each: $125 (1–15), $100 (16–30), $80 (31–50), $65 (51–100).
Source: workos.com/pricing · 2026-10-30
Also see: Amazon Cognito alternatives · WorkOS alternatives · all vendors by MAU
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