Stack Auth Pricing 2026
Plans, hidden costs, and cheaper alternatives compared
Is Stack Auth worth the price?
Stack Auth's pricing is fair for its target audience.
The Free tier is generous for individual developers, while the Team tier at $49/month offers essential upgrades. The Growth tier at $299/month seems reasonable for larger organizations needing advanced SSO features.
It's best for developers and small to medium businesses prioritizing rapid integration and flexibility.
Pricing Plans
Free
Free
Team
$49 / mo
Everything in all plans.
Growth
$299 / mo
Everything in all plans, plus:
- 3 SAML SSO connections (then $99 each)
- Premium support
Included in all plans
- Custom branding
- SSO with OIDC/OAuth
- Priority support
Hidden Costs & Gotchas
Additional SAML SSO connections at $99 each on Growth tier.
Potential for increased costs with premium support needs.
No annual discount mentioned, potentially higher long-term cost.
Which Plan Do You Need?
Developers needing quick auth setup
Startups on a tight budget
Teams requiring SSO and branding
How Stack Auth Compares to Competitors
Compared to Auth0, which can quickly scale to hundreds or thousands of dollars per month for similar features, Stack Auth's $49/month Team plan and $299/month Growth plan appear more accessible. Firebase Authentication is free for basic use but lacks advanced SSO features found in Stack Auth's paid tiers, making Stack Auth a strong middle-ground option.
Stack Auth Pricing FAQ
How much does Stack Auth cost?
Stack Auth starts at $49/month on the Team plan. It offers 2 paid tiers ranging from $49/month up to $299/month. A free plan is also available with limited features.
Does Stack Auth have a free plan?
Yes. Stack Auth offers a free plan called "Free". It is suitable for individuals or small teams getting started.
What is the cheapest Stack Auth paid plan?
The cheapest paid plan for Stack Auth is "Team" at $49/month. Key features include: Custom branding, SSO with OIDC/OAuth, Priority support.
Is there a cheaper alternative to Stack Auth?
Yes. Popular alternatives to Stack Auth include FusionAuth, SuperTokens, Authelia, Keycloak. Free alternatives include FusionAuth, SuperTokens, Authelia. Compare them side-by-side on Toolradar.
Cheaper alternatives to Stack Auth
4 of 4 direct competitors below offer a free plan. Per-seat pricing varies up to 60% across this set.
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