Clerk vs Stytch

Clerk gives you a complete auth system without building one. Install the package, drop in the sign-up component, and you have Google login, email/password, MFA, and user profiles working. The UI components look professional without any styling work.

The 10,000 MAU free tier is genuinely generous: most early startups will not outgrow it for months. The concern is lock-in: once your app is wired to Clerk’s components and APIs, moving to something else is a significant rewrite. If you are validating an idea and need auth fast, Clerk is the fastest path. If you are building something you expect to maintain for years, consider whether the convenience is worth the dependency.

Stytch is built around the idea that passwords are a liability. Instead of email/password as the default, it leads with magic links, one-time passcodes, passkeys, and biometric auth. The API is well-designed: you can have passwordless login working in under an hour. It also offers fraud tools such as device fingerprinting, with 10,000 fingerprints included free. Twilio completed its purchase of Stytch on 14 November 2025, and the product continues under the Stytch name.

Pricing is pay as you go with no monthly base fee. The free tier covers 10,000 monthly active users and AI agents, unlimited organizations, 5 SSO or SCIM connections and 1,000 machine-to-machine tokens, and usage above that is billed per unit with no hard caps. Full email customization and removal of Stytch branding cost $99. If your product specifically benefits from passwordless (fewer support tickets, higher conversion on sign-up), Stytch is a strong fit. If you just need standard social login and email/password, Clerk or Firebase Auth are simpler to set up.