Stack Auth vs WorkOS: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Stack Auth
Stack Auth is an open-source authentication platform that handles login, signup, and user management for developers in minutes.
WorkOS
WorkOS is a developer platform that adds enterprise authentication features like Single Sign-On, user management, and security to apps instantly.
Stack Auth
Stack Auth is an open-source authentication platform that handles login, signup, and user management for developers in minutes.
WorkOS
WorkOS is a developer platform that adds enterprise authentication features like Single Sign-On, user management, and security to apps instantly.
Stack Auth
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
WorkOS
Enterprise Single Sign-On with SAML and OIDC support
User authentication with social logins and passwords
Multi-factor authentication for added security
Automatic user directory synchronization
Role-based access control for permissions
Security event logging and audit trails
Bot and fraud protection with Radar
Self-service admin portal for customers
API-first design with modern SDKs
Support for major identity providers
Stack Auth
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.
WorkOS
WorkOS uses a flexible pricing model where you pay only for what you use, with volume discounts applied automatically.
AuthKit provides user management for free up to one million monthly active users. After that, the cost is $2,500 per month for each additional million users.
Single Sign-On and Directory Sync both charge per enterprise connection. The first connection costs $125 monthly, with discounts as you add more. Pricing drops to $100 per connection for 16-30 connections, $80 for 31-50 connections, $65 for 51-100 connections, and $50 per connection beyond 100.
Audit Logs charges $125 monthly per security monitoring connection, plus $99 per million events stored.
Radar includes the first 1,000 security checks free monthly, then $100 per 50,000 additional checks.
For larger teams, WorkOS offers annual credit packages with pre-payment discounts, guaranteed uptime, and dedicated support.
