Authentication

Authentication
for modern apps

Identity platform for user authentication & authorization.
Everything you need to ship secure, high-conversion login flows without rebuilding your app.

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Free plan includes unlimited MAUs

Fast to Implement. Seamless to Use.

Seamless login & onboarding
Add auth in minutes
Secure & flexible RBAC
Customize to fit your brand

Authentication methods users love

Passkeys, passwordless, biometric login, social providers, and classic passwords—pick what fits your audience

SMS, WhatsApp &  Email One-Time Password

Six-digit OTP via SMS, WhatsApp or email, with rate limiting, cooldowns, and expiry controls

Magic Links

One-tap email login for quick re-entry

Social Login

Apple, Google, Facebook, GitHub, LinkedIn, WeChat and more

Adaptive MFA

Step-up the right users at the right time; support TOTP, passkeys, OTP, and additional password

Anonymous Users

Let users try your app instantly, then convert seamlessly when the moment’s right

Re-auth

Require an extra check before profile edits, payments, or key approvals

Bot & Fraud Detection

CAPTCHA and rate limits reduce abuse and SMS pumping risk

Single Sign-On (SSO) everywhere

SSO across web applications and mobile applications

Branding & Theming

Require an extra check before profile edits, payments, or key approvals

M2M Tokens

Require an extra check before profile edits, payments, or key approvals
Developer
Experience
SDKs
JavaScript/TypeScript (web & SPA), iOS (Swift), Android (Kotlin), React Native, Flutter,…
Admin API
Provision users, assign roles, and query logs programmatically

Use Cases

K11 Unifies Login Across Lifestyle Apps with Authgear
See Case Studies
Global QSR Streamlines Frontline Login with Authgear
See Case Studies
Hongkong Land Streamlines Staff & Partner Access with Authgear
See Case Studies