
Auth0
Auth0 by Okta provides a highly secure and scalable authentication and authorization platform that empowers businesses to protect their web, mobile, and l...
- Freemium
- Web, iOS, Android, API
- Data & AnalyticsSpreadsheet & BICode
- Free plan available
- No credit card

What is Auth0?
Key features
Multi-factor authentication
supports SMS, email, authenticator apps, and biometric verification
Social login integration
allows users to log in with Google, Facebook, Microsoft, and other providers
Role-based access control
define user roles and permissions to control what authenticated users can access
Universal login page
customisable login interface that works across web and mobile applications
Log and audit trails
track authentication events and user activities for compliance and security review
API management
secure your APIs with token-based authentication and authorisation
Pros & cons
Advantages
- Takes authentication work off your development team; reduces time spent building and securing login systems
- Scales automatically without you managing infrastructure
- Wide range of integrations with common platforms, frameworks, and identity providers
- Free tier available for smaller projects or evaluation
- Good documentation and developer-friendly SDKs for multiple programming languages
Limitations
- Pricing increases quickly as you add users; the free tier has limits on monthly active users
- Introduces a third-party dependency; any outage affects your user login capability
- Learning curve for advanced features like custom rules and complex authorisation flows
Use cases
SaaS applications that need secure user registration and login without building authentication from scratch
Mobile apps requiring social login and multi-factor authentication
APIs that need token-based security and user permission management
Enterprises managing access across multiple applications with single sign-on
Startups looking for authentication that scales without DevOps overhead
Ready to try Auth0?
Pricing
Free
Free
Up to 7,000 monthly active users, basic multi-factor authentication, social login, community support
Pro
From £27/month
Up to 10,000 monthly active users, advanced rules, custom database connections, priority support
Enterprise
Custom pricing
Unlimited users, dedicated support, advanced security features, custom integrations, service level agreement
Get started with Auth0
Click through to Auth0 and start using it now.
- Free plan available
- No credit card