Auth · working at 10,000 users · rates as read 26 Sept 2026
On free tier, WorkOS is $0: up to 1 million users and PropelAuth is $0: includes 10,000 MAUs. On cheapest paid plan, WorkOS is $125 / ea per enterprise connection and PropelAuth is $150 /month (Growth). On rate above what's included, WorkOS is $2,500 / mo per additional million users and PropelAuth is $0.05 per user above 10,000, $100/connection for SSO. StackTab sells neither of these and takes no referral fee on either: it scores them. Every figure was read off the named company's own page on or since 2026-09-18; the URLs and the dates are at the foot of this page, and a job re-fetches each one on a schedule and fails when a figure is no longer on the page it came from.
2 compared · 3 criteria, identical for every column · every competitor figure read off that company's own page · last verified 2026-09-18
| Service | |||
|---|---|---|---|
| WorkOSAuthKit free to a million users; the money is in SSO and Directory Sync.verified 25 Sept 2026workos.com/pricing | $ | $ | $ |
| PropelAuthB2B auth priced per user with org management built in.verified 25 Sept 2026propelauth.com/pricing | $ | $ | $ |
- Sorted by the total at
- AuthKit free to a million users; the money is in SSO and Directory Sync.verified 25 Sept 2026workos.com/pricing
- 1,000 users
- $
00 AuthKit - 10,000 users
- $
00 AuthKit - 100,000 users
- $
00 AuthKit
- B2B auth priced per user with org management built in.verified 25 Sept 2026propelauth.com/pricing
- 1,000 users
- $
00 Free - 10,000 users
- $
00 Free - 100,000 users
- $
4,6504,650 Growth
| Criterion | WorkOS | PropelAuth |
|---|---|---|
| Free tier | $0: up to 1 million usersBy a wide margin the largest free allowance in this table: AuthKit is free to one million users. | $0: includes 10,000 MAUsThere is no overage to buy on the free plan; past 10,000 the plan is Growth. |
| Cheapest paid plan | $125 / ea per enterprise connectionAuthKit itself is free; the money starts at the first SSO connection. Volume steps: 1-15 at $125 each, 16-30 at $100, 31-50 at $80, 51-100 at $65. | $150 /month (Growth)Includes the same 10,000 monthly active users. |
| Rate above what's included | $2,500 / mo per additional million usersThe user rate and the connection rate are separate meters, which is what makes the B2B arithmetic predictable. | $0.05 per user above 10,000, $100/connection for SSOGrowth Plus is $500 /month and adds the enterprise-readiness tier on top. |
- Free tier: what the vendor gives you at $0 a month, in its own words
- Rate above what's included: the per-unit or per-transaction rate the vendor publishes for usage beyond the plan: the figure you need to work out a bill before you commit to one
WorkOS: $0: up to 1 million users. By a wide margin the largest free allowance in this table: AuthKit is free to one million users. PropelAuth: $0: includes 10,000 MAUs. There is no overage to buy on the free plan; past 10,000 the plan is Growth. Read from workos.com and propelauth.com on 2026-09-18. Free tier here means what the vendor gives you at $0 a month, in its own words.
WorkOS: $125 / ea per enterprise connection. AuthKit itself is free; the money starts at the first SSO connection. Volume steps: 1-15 at $125 each, 16-30 at $100, 31-50 at $80, 51-100 at $65. PropelAuth: $150 /month (Growth). Includes the same 10,000 monthly active users. Read from workos.com and propelauth.com on 2026-09-18.
WorkOS: $2,500 / mo per additional million users. The user rate and the connection rate are separate meters, which is what makes the B2B arithmetic predictable. PropelAuth: $0.05 per user above 10,000, $100/connection for SSO. Growth Plus is $500 /month and adds the enterprise-readiness tier on top. Read from workos.com and propelauth.com on 2026-09-18. Rate above what's included here means the per-unit or per-transaction rate the vendor publishes for usage beyond the plan: the figure you need to work out a bill before you commit to one.
WorkOS: You are selling to companies and someone is going to ask for SAML. WorkOS prices the enterprise connection directly instead of pushing you into a tier that bundles it with things you do not need, and AuthKit is free to a million users, so the bill tracks the number of enterprise customers rather than the number of end users. PropelAuth: Your product is B2B and organisations, roles and per-tenant settings are the hard part rather than the login box. PropelAuth is built around that shape from the start, and it publishes both the per-user rate and the per-connection SSO price, so the bill at a hundred customers is arithmetic rather than a phone call.
StackTab does not sell any of these and has nothing to gain from which one you choose: it scores them. Each case below is the one that option genuinely wins.
- WorkOS: You are selling to companies and someone is going to ask for SAML. WorkOS prices the enterprise connection directly instead of pushing you into a tier that bundles it with things you do not need, and AuthKit is free to a million users, so the bill tracks the number of enterprise customers rather than the number of end users.
- PropelAuth: Your product is B2B and organisations, roles and per-tenant settings are the hard part rather than the login box. PropelAuth is built around that shape from the start, and it publishes both the per-user rate and the per-connection SSO price, so the bill at a hundred customers is arithmetic rather than a phone call.
Prices and limits move, and a page quoting a stale one is worth less than a page quoting none. Every source is printed here so a reader can check it against the day they are reading this, and a job re-fetches each of these URLs on a schedule and fails when a figure above no longer appears on the page it came from.
- WorkOS: workos.com/pricing: Free tier, Cheapest paid plan, Rate above what's included. Read 2026-09-18.
- PropelAuth: www.propelauth.com/pricing: Free tier, Cheapest paid plan, Rate above what's included. Read 2026-09-18.
Last verified 2026-09-18. https://stacktab.thecompound.tech/compare/workos-vs-propelauth