WorkOS vs Kinde

Q: WorkOS vs Kinde — free tier?

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. Kinde: $0 forever — 10,500 monthly active users. "No setup fees, monthly fees, or hidden fees", and no credit card to start. Read from workos.com and kinde.com on 2026-09-18. Free tier here means what the vendor gives you at $0 a month, in its own words.

Q: When should I pick WorkOS, and when Kinde?

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. Kinde — You want the billing and the auth on one bill. Kinde is the only provider in this table that also runs your customer billing — 0.7% per transaction on Pro, falling with the plan — and its free allowance of 10,500 monthly active users keeps running underneath every paid tier rather than being replaced by it.

The same 3 criteria for both, with the page each figure came from and the day it was read.

Auth · working at 10,000 users · rates as read 26 Sept 2026

On free tier, WorkOS is $0: up to 1 million users and Kinde is $0 forever: 10,500 monthly active users. On cheapest paid plan, WorkOS is $125 / ea per enterprise connection and Kinde is $25 USD per month (Pro). On rate above what's included, WorkOS is $2,500 / mo per additional million users and Kinde is $0.0175 per extra monthly active user, stepping to $0.0151. 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	$0AuthKit	$0AuthKit	$0AuthKit
KindeAuth with billing and feature flags bundled in.verified 25 Sept 2026kinde.com/pricing	$0Free	$0Free	$1,591Plus

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
$0AuthKit
10,000 users
$0AuthKit
100,000 users
$0AuthKit
Auth with billing and feature flags bundled in.verified 25 Sept 2026kinde.com/pricing
1,000 users
$0Free
10,000 users
$0Free
100,000 users
$1,591Plus

the services a web app is billed for compared on the same 3 criteria

Every figure below was read off that company's own page; each source URL and the date it was read are listed at the foot of this page. StackTab is the publisher of this table and is not one of the 2 compared: it scores these rather than competing with them.
Criterion	WorkOS	Kinde
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 forever: 10,500 monthly active users"No setup fees, monthly fees, or hidden fees", and no credit card to start.
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.	$25 USD per month (Pro)10,500 monthly active users are still free on top of the plan fee.
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.	$0.0175 per extra monthly active user, stepping to $0.0151Plus a transaction fee if you bill your customers through Kinde: 0.7% on Pro, 0.6% on Plus, with a 0.2% discount on Scale. Plus is $75 USD per month and Scale is $250 USD per month.

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 vs Kinde: free tier?

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. Kinde: $0 forever: 10,500 monthly active users. "No setup fees, monthly fees, or hidden fees", and no credit card to start. Read from workos.com and kinde.com on 2026-09-18. Free tier here means what the vendor gives you at $0 a month, in its own words.

WorkOS vs Kinde: cheapest paid plan?

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. Kinde: $25 USD per month (Pro). 10,500 monthly active users are still free on top of the plan fee. Read from workos.com and kinde.com on 2026-09-18.

WorkOS vs Kinde: rate above what's included?

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. Kinde: $0.0175 per extra monthly active user, stepping to $0.0151. Plus a transaction fee if you bill your customers through Kinde: 0.7% on Pro, 0.6% on Plus, with a 0.2% discount on Scale. Plus is $75 USD per month and Scale is $250 USD per month. Read from workos.com and kinde.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.

When should I pick WorkOS, and when Kinde?

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. Kinde: You want the billing and the auth on one bill. Kinde is the only provider in this table that also runs your customer billing: 0.7% per transaction on Pro, falling with the plan, and its free allowance of 10,500 monthly active users keeps running underneath every paid tier rather than being replaced by it.

When each of these is the right pick

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.
Kinde: You want the billing and the auth on one bill. Kinde is the only provider in this table that also runs your customer billing: 0.7% per transaction on Pro, falling with the plan, and its free allowance of 10,500 monthly active users keeps running underneath every paid tier rather than being replaced by it.

Other the services a web app is billed for compared head to head10

What was checked, and whenverified 2026-09-18

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.
Kinde: kinde.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-kinde

WorkOS vs Kinde

On this page8

Written comparisons2