LoginRadius vs Stack Auth: Features, Pricing and User Reviews 2026
LoginRadius
Secure Identity & Access Management

Stack Auth
Open-Source Authentication Platform for Developers

LoginRadius
Secure Identity & Access Management

Stack Auth
Open-Source Authentication Platform for Developers

What are LoginRadius and Stack Auth?
LoginRadius is a tool that handles user identity and login management for your digital products. When someone visits your website or app, LoginRadius manages their registration, login, and account security. It offers multiple ways for users to sign in, including traditional passwords, social media accounts like Google or Facebook, or passwordless options like magic links.
The platform uses ready-to-use tools that developers can add to any website or mobile app with a few lines of code. It includes features like single sign-on, which lets users log in once and access multiple sites, and multi-factor authentication for extra security.
There are different plans available, from a free version for small projects to enterprise solutions for large companies with millions of users.
Stack Auth is a complete authentication solution that handles all the complex parts of user login and management. When you add it to your application, you get ready-made login pages, account settings, password reset flows, and user dashboards without writing code for these features yourself.
The platform supports multiple ways for users to sign in, including regular passwords, social logins through Google or GitHub, magic email links, and modern passkeys using fingerprints or face recognition. It also handles advanced features like two-factor authentication for extra security, team management for business apps, and permission systems to control what different users can do.
Stack Auth is fully open-source and licensed under MIT and AGPL, meaning you can see exactly how it works and modify it if needed.
Features of LoginRadius and Stack Auth
Multiple authentication methods including passwords, social login, and passwordless options
Single sign-on across multiple platforms
40+ social login providers supported
Multi-factor authentication for security
Custom branded login pages
User management dashboard
API-first architecture for developers
99.99% uptime guarantee
GDPR and data privacy compliance
150+ third-party integrations
Global infrastructure with 35 data centers
Password, OAuth, and magic link authentication
Two-factor authentication and passkeys
Team and organization management
Role-based permissions and access control
Pre-built React components and UI
User impersonation for support
Webhooks and real-time notifications
Custom email templates
REST API for integrations
Open-source and self-hostable
Next.js, React, JavaScript support
Admin dashboard for user management
Use Cases of LoginRadius and Stack Auth
Pricing of LoginRadius and Stack Auth
LoginRadius offers flexible pricing with both B2C and B2B options to fit different business needs.
The Free plan includes 25,000 monthly active users for B2C or 10,000 for B2B, unlimited applications, standard and passwordless login, social login with multiple providers, and basic security features. This is perfect for startups and small projects getting started.
The Professional plan (contact for pricing) adds unlimited organizations, branded login pages with custom domains, advanced security features, role-based access control, regional data storage, federation support through SAML and OAuth, multi-factor authentication, 99.99% uptime guarantee, and 24/7 email and live chat support.
The Enterprise plan (contact for pricing) includes everything in Professional plus identity orchestration, global deployment, unlimited usage and applications, choice of cloud provider, single or multi-tenant deployment, compliance certifications, 100+ integrations, dedicated account manager, and enterprise onboarding support.
Stack Auth offers transparent pricing that scales with your needs. The Free plan is perfect for individuals and small projects, supporting up to 10,000 users with unlimited projects and teams. You get one dashboard administrator and access to all core authentication features.
The Team plan costs $49 per month and increases your user limit to 50,000 users. It includes three dashboard administrators, with additional admins available at $49 each. This plan is ideal for early startups and small teams building their products.
The Growth plan at $299 per month removes all user limits entirely. You get unlimited users, projects, and teams, along with five dashboard administrators included. Additional admins cost $49 each. This plan is designed for growing businesses that need to scale without worrying about user count restrictions.
All plans include the same core features, with the main differences being user limits and admin accounts.
FAQs: LoginRadius vs Stack Auth
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