Authentication · decision tool
Clerk vs Kinde — for your app, not in general
Clerk or Kinde? Set your usage, budget and constraints; the verdict, monthly cost and risks update live from verified pricing.
Prices verified 2026-07-15 against official pricing pages · fit weights are our estimates (see methodology) · share the URL to share your configuration
As of Jul 2026, with 5,000 monthly active users, a $50 budget for this slot, Clerk ranks first for these inputs at 96% fit and a StackSays-estimated $0/month (Kinde: 88% fit, $0/month). Fit weights are our estimates; prices trace to official pages. Change any input below and the verdict recomputes.
Your situation
The verdict updates as you move these.
Clear pick for your inputs
Plug-and-play auth with the best prebuilt UI; you pay for the polish as you grow
vs Kinde: fit 96% against 88%, est $0 against $0 per month
Comparing 2 tools head-to-head. Open the full field (7 options) →
The decision, in plain words
For a solo builder at 5,000 monthly active users and a $50.00/mo budget for the auth provider slot, Clerk leads at 96% fit and $0/mo. The two rules doing the work: budget fit (Runs free at your usage — $0 vs your $50/mo budget); batteries included (Bundles prebuilt sign-in UI, organizations/teams, enterprise SSO — fewer services to glue at team size 1).
The gap to Kinde (88% fit) is wide at these inputs — you'd need to change your requirements, not your taste, to flip it.
Honest weak spot of the pick: hosted user store — migrating away means a coordinated export (password hashes via support).
Generated from the calculation above — every number traces to the sourced data; nothing here is written by an AI making things up.
Why Clerk scores 96%
How the $0/mo estimate is calculated
Your usage fits Clerk's free tier (50,000 monthly retained users (MRU), full features) — the estimate is $0.
What could change this verdict
No single input change within the tested range changes the winner.
Cost risk
Official prices verified 2026-07-15; calculation is deterministic code over those prices.
At a glance
| Tool | Free tier | Paid entry | Verified |
|---|---|---|---|
| Clerk | 50,000 monthly retained users (MRU), full features | Pro $25/mo | 2026-07-15 |
| Kinde | 10,500 MAU free forever | Pro $25/mo | 2026-07-15 |
Data sources
| Tool | Source | Verified |
|---|---|---|
| Clerk | Clerk pricing page | 2026-07-15 |
| Kinde | Kinde pricing page | 2026-07-15 |
A monitor re-checks these pages for changes; when a vendor moves a price, the date updates and every verdict recomputes.