Auth0 vs Formspree
Customer identity platform from Okta
vs. Form backend as a service — point your HTML form at a URL and done
Pricing tiers
Auth0
B2C Essentials
Starting at 500 MAUs. Pro MFA, RBAC, passwordless, SAML, 10 orgs.
$35/mo
B2B Essentials
Unlimited orgs, 3 SSO connections, RBAC.
$150/mo
B2C Professional
Starting at 500 MAUs. Includes attack protection, custom DB, enterprise MFA.
$240/mo
B2B Professional
5+ SSO connections, attack protection, custom DB.
$800/mo
Enterprise
Custom. 99.99% SLA, dedicated support.
Custom
Formspree
Free
$0. 50 submissions/mo. 1 form. Formspree branding in emails. Basic spam filtering.
Free
Basic
$10/mo. 500 submissions/mo. Unlimited forms. Custom success redirect. Honeypot anti-spam.
$10/mo
Professional
$20/mo. 1,000 submissions/mo. reCAPTCHA, webhooks, integrations, rules engine.
$20/mo
Unlimited
$40/mo. 2,500 submissions. File uploads, team members, priority support.
$40/mo
Enterprise
Custom. SSO, SAML, HIPAA, high volume, dedicated support.
Custom
Free-tier quotas head-to-head
Comparing b2c-essentials on Auth0 vs free on Formspree.
| Metric | Auth0 | Formspree |
|---|---|---|
| mau start | 500 MAU | — |
| sso connections | 0 conns | — |
Features
Auth0 · 14 features
- Attack Protection — Bot detection, brute-force protection, breached-password detection, suspicious I…
- Auth0 Actions — Node.js + TS hooks that run during auth flows (login, post-login, signup, MFA). …
- Auth0 FGA (OpenFGA) — Fine-grained relationship-based authorization (ReBAC). Based on Google Zanzibar.
- Custom Database — BYO user DB: scripts in Actions read from your database and create Auth0 users o…
- Custom Domain — Serve auth at auth.yourbrand.com with managed cert.
- Enterprise SSO — SAML 2.0 + OIDC + AD/LDAP enterprise connections. Per-tenant or per-org.
- Log Streaming — Stream tenant logs to Datadog, Splunk, Sumo Logic, Azure Sentinel, HTTP, Mixpane…
- Machine-to-Machine — Client-credentials grant for backend services.
- Multi-Factor Auth — SMS, Voice, Email, TOTP, WebAuthn (biometrics), Push (Guardian app), Duo.
- Organizations — Multi-tenant B2B: orgs with invitations, roles, branding, enterprise connections…
- Passkeys — FIDO2/WebAuthn passkey sign-in.
- Passwordless — Email magic link + code, SMS code, WebAuthn.
- RBAC — Roles, permissions, API scopes — attach to users or orgs.
- Universal Login — Hosted login page with customization, multi-factor flows, passwordless, social, …
Formspree · 11 features
- Custom Success Redirect — Redirect after submit.
- Email Notifications — Submissions delivered to inbox.
- File Uploads — Accept attachments (Unlimited).
- IP Filtering — Block spam IPs.
- React SDK — Hooks + state management.
- Rules Engine — Conditional routing, auto-responders.
- Spam Protection — Honeypot + reCAPTCHA + keyword filter.
- Submission Analytics — Volume + source stats.
- Team Members — Multi-user (Unlimited).
- Webhooks — POST submissions to your server.
- Zero Backend — HTML <form action> → email.
Developer interfaces
| Kind | Auth0 | Formspree |
|---|---|---|
| CLI | Auth0 CLI | — |
| SDK | Auth0 Android, Auth0 iOS/Swift, @auth0/nextjs-auth0, Auth0 React SDK, Auth0 SPA.js SDK, Go Auth0 SDK, Node Auth0 Backend SDK, Python Auth0 SDK | @formspree/core, @formspree/react |
| REST | Authentication API, Management API | Formspree REST API |
| OTHER | — | Direct HTML Form Submit, Formspree Dashboard, Formspree Webhooks |
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