Auth0 Guardian vs Logto

Auth0 Guardian is a mobile app for completing multi-factor authentication on iOS and Android. During login, users can approve a push notification on an enrolled device or enter a temporary one-time password. Guardian-generated OTPs normally remain valid for 30 seconds. The app supports multiple languages and dialects, follows the device language by default, and offers system, light, and dark themes. Users can protect it with a passcode, passphrase, or device biometrics. Organizations can use Guardian SDKs to build similar applications or add Guardian capabilities to their own apps. Push delivery can use AWS SNS, Firebase Cloud Messaging, or Apple Push Notification service. Auth0 MFA API endpoints can enforce MFA at token endpoints and manage enrolled factors. Guardian is available through the Apple App Store and Google Play Store. The free plan is available; paid plans start at 35 /mo, with a 22-day trial.

Logto is a freemium identity and access-management solution for modern applications and SaaS products. It handles authentication through passwords, email or SMS one-time codes, social sign-in, passkeys, multifactor authentication and enterprise single sign-on. Authorization features include role-based access control and organizations for multi-tenant applications. Developers get a web Console, Management API, Experience API, Account API, SDKs and an MCP Server. Quick starts cover Android, iOS, Chrome extensions, React, Next.js, Vue, Flutter, Go,.NET, Python, PHP and WordPress. Listed connectors include Apple, Microsoft, Discord, Facebook, GitHub, GitLab, Google, LinkedIn, Slack and X. Security features include signing-key rotation, OIDC back-channel logout, CSRF protections and DoS protections. Logto states that it is SOC 2 Type II certified, with cloud regions in the EU, Australia, US and Japan. Cloud Free allows up to 50,000 monthly active users and includes 50K tokens; Pro costs $24 a month with 50K tokens included and extra usage billed. Self-hosted options include free OSS Community and Self-hosted Pro at $199 a month, billed annually.