Auth0 vs Supabase Auth
Answer: As of 2026-10-30: Auth0 wins 1k users · no SSO at $0/mo ($0/yr less than Supabase Auth); Auth0 wins 10k users · 1 SSO at $0/mo ($327/yr less than Supabase Auth).
Cost by MAU (no SSO)
| Monthly users | Auth0 | Supabase Auth |
|---|---|---|
| 10k users | $0 Free | $0 Free (platform) |
| 50k users | — | $0 Free (platform) |
| 100k users | — | $25 Pro (platform) |
With enterprise SSO
| Scenario | Auth0 | Supabase Auth |
|---|---|---|
| 1k users · no SSO | $0 Free | $0 Free (platform) |
| 10k users · 1 SSO | $0 Free | $27.25 Pro (platform) |
| 50k users · 5 SSO | — | $39.25 Pro (platform) |
| 100k users · 10 SSO | — | $54.25 Pro (platform) |
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
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: Auth0 alternatives · Supabase Auth alternatives · all vendors by MAU
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