Facts read November 6, 2026
Neon Auth vs Supabase Auth
Supabase Auth is Cuely's default auth pick when your description doesn't favor either one: the natural choice when the database is already Supabase. Pick Neon Auth if you care most about the lowest cost.
Side by side
| Fact | Neon Auth | Supabase Auth |
|---|---|---|
| What it is | Managed Better Auth that stores users and sessions in your Neon database. | Auth bundled with Supabase Postgres, with row-level security integration. |
| Free plan | Included in every Neon plan at no separate charge; up to 60,000 MAU per project on Free. | Free: 50,000 monthly active users with social OAuth; no SAML SSO or phone MFA. |
| Paid from | Neon Launch (pay as you go) raises the limit to 1M MAU per project. | Pro: from $25/month, includes 100,000 MAU, then $0.00325 per MAU. |
| At 1,000 users | $0/month | $0/month |
| Open source | Yes | Yes |
| Self-hostable | No | Yes |
| Best for | Apps already on Neon; Fewer vendors; Users and sessions queryable in SQL | Apps already on Supabase; Row-level security keyed to the signed-in user |
| Watch out | Neon lists the Organization plugin as partial and MFA as coming soon. Available in AWS regions only; above 1M MAU per project you contact Neon. | Free projects pause after a week of inactivity. SAML SSO needs Pro; phone MFA is a $75/month add-on. |
Where they differ
The published scores, from −3 to +3, that decide which one Cuely picks for each need.
| Need | Neon Auth | Supabase Auth |
|---|---|---|
| keep costs as low as possible | +2 No separate auth fee. | 0 No particular strength here. |
| native iOS or Android app | 0 No particular strength here. | +2 Works from the Supabase React Native client, including Sign in with Apple. |
| prefers open source or self-hosting | 0 No particular strength here. | +2 Open source and self-hostable with the rest of Supabase. |
| fewer vendors | +2 Users live in the same Neon database, under the neon_auth schema. | +3 Same vendor and database as Supabase Postgres. |
| sells to businesses (organizations, roles, SSO) | −1 Organizations are only partly supported today. | 0 SAML SSO is available on Pro; organizations you model yourself. |
Sources: Neon Auth pricing (read November 6, 2026), Supabase Auth pricing (read November 6, 2026). No vendor pays for placement.