Kinde vs Supabase Auth
Answer: As of 2026-10-30: Kinde wins 1k users · no SSO at $0/mo ($0/yr less than Supabase Auth); Kinde wins 10k users · 1 SSO at $0/mo ($327/yr less than Supabase Auth); Supabase Auth wins 50k users · 5 SSO at $39.25/mo ($8,155/yr less than Kinde); Supabase Auth wins 100k users · 10 SSO at $54.25/mo ($17,755/yr less than Kinde).
Cost by MAU (no SSO)
| Monthly users | Kinde | Supabase Auth |
|---|---|---|
| 10k users | $0 Free | $0 Free (platform) |
| 50k users | $716.25 Pro | $0 Free (platform) |
| 100k users | $1533.85 Plus | $25 Pro (platform) |
With enterprise SSO
| Scenario | Kinde | 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 | $718.85 Plus | $39.25 Pro (platform) |
| 100k users · 10 SSO | $1533.85 Plus | $54.25 Pro (platform) |
Cheapest verified plan per vendor, monthly USD list price. How we calculate this.
Kinde
Free $0 / Pro $25 / Plus $75 / Scale $250. Each includes 10,500 MAU; Pro overage $0.0175/MAU. Plus and Scale include unlimited enterprise SSO at no per-connection fee. Free/Pro include 1 SSO connection.
Source: kinde.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: Kinde alternatives · Supabase Auth alternatives · all vendors by MAU
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