Stack Auth vs WorkOS: Features, Pricing and User Reviews 2026

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 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.