Authio Lobby vs Clerk

Authio Lobby provides passwordless sign-in for apps through a hosted interface, SDKs, session features, and widgets for customer IT admins. Sign-in methods include passkeys, magic links, social login, and enterprise SSO using SAML 2.0, OIDC, and SCIM 2.0. The hosted interface can use a custom domain, organization-specific branding, and project-specific email templates. SDKs are listed for Next.js, React, Vue, and Node, with session helpers and edge-runtime JWT verification. Session tools include silent refresh, secure cookie helpers, route gating, and switching organizations within a session. Embeddable widgets let customer admins configure SSO, directory sync, and domain verification within a product. The free Developer tier is for projects under 10,000 MAUs and excludes SSO, SCIM, and Locate. Starter costs $129 a month and Pro costs $449 a month; Enterprise pricing is custom. Authio says GDPR and CCPA compliance is in place and describes its SOC 2 posture as pre-audit readiness, with Type I targeted for 2027-Q1.

Clerk provides full-stack authentication and user management for applications, including Organizations and Billing. Prebuilt components cover sign-up, sign-in, and user profiles, while Frontend, Backend, and Platform HTTP APIs support client-side, backend, and workspace operations. Clerk Billing handles subscription billing and charges 0.7% of billing volume in addition to Stripe fees. Its free B2B offering includes 100 monthly retained organizations per app and up to 20 members per Organization. Listed integrations include Convex, Firebase, Supabase, Shopify, Vercel Marketplace, and Google Analytics. Security practices include account lockout, bot protection, rate limiting, breached-password detection, and MFA enforcement. Clerk lists SOC 2 Type 2 and HIPAA certifications; SOC 2 reports are available on Business and above, while a HIPAA BAA is available on Enterprise. Data is hosted on US infrastructure, with no regional data residency. Clerk is available on Android, iOS, web, APIs, and extensions, and provides an iOS SDK for native Apple apps. Hobby is free; Pro costs $20/mo billed annually, and Business costs $250 per year billed annually.