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Auth & User Management

Descope

Drag-and-drop authentication platform with passkeys, social login, MFA, and a visual flow builder for designing custom login experiences.

Build a multi-tenant B2B SaaS with per-customer SSO and custom login branding using the visual flow builder
Add passkey authentication to a consumer mobile app with Descope's Flutter SDK
Design a complex onboarding flow with email verification, MFA, and organization setup — all without code

7,500 MAU, unlimited tenants, SSO, M2M tokens, visual flow builder

Descope's free tier includes 7,500 MAU with all auth methods (passwordless, social, passkeys, MFA) — no feature gating. The visual flow builder is the standout: design login screens without code, then embed them with a single script tag. Use the tenant management for free multi-tenancy — each tenant can have its own auth configuration. Watch the anonymous user cap (100 on free tier) — it's separate from MAU limits. Enable passkeys early for the best UX — Descope supports WebAuthn natively. Combine with their SDKs for React, Next.js, and Flutter for fast integration.

Sign up at descope.com (no credit card) → create a project → use the visual flow builder to design your login screen → configure auth methods (social, passwordless, passkeys) → copy your Project ID → install the Descope SDK → wrap your app → test the flow → deploy.

Pros

  • Visual flow builder: Design and customize login flows visually without writing code — great for teams without dedicated auth engineers
  • Passkey support: Native WebAuthn/passkey support included free — future-proof authentication without third-party integrations
  • Multi-tenancy: Unlimited tenants on the free tier with per-tenant auth policies — ideal for B2B SaaS with customer-specific requirements

Cons

  • Lower MAU cap: 7,500 MAU is below Clerk (10K) and Logto (50K) — tighter constraint for consumer apps with high user counts
  • Younger ecosystem: Smaller community and fewer third-party integrations compared to Auth0 or Clerk — more self-service troubleshooting
  • Flow builder learning curve: While the visual builder is powerful, mastering its branching logic and conditional flows takes time