Churnkey
Replaceable in one session with an AI coding agent.
Cancellation flows and failed-payment recovery: when someone tries to cancel it offers a pause or a discount, and it retries declined cards on a schedule that works.
Build the cancellation flow and the dunning schedule. STACK - Stripe webhooks, Postgres, a small flow page THE CANCELLATION FLOW - Ask why, with a short fixed list and an optional sentence - Offer one thing matched to the reason: pause for "not using it", a discount for "too expensive", support for "missing a feature" - Never more than one offer, and never block the cancel button. A flow that traps people generates chargebacks DUNNING - Retry a declined card on day 1, 3, 5 and 7, then stop - Mail on each attempt with a link to update the card - Grace period before access is cut, stated plainly in the mail MEASURING - Record every cancellation reason and every save as rows - Report voluntary and involuntary churn separately; they have different fixes Include the flow, the retry schedule and the churn split.
What you lose
- Retry schedules for declined cards tuned against millions of attempts, which recovers real revenue
- Cancellation offers tested for what actually retains
- Reporting that separates involuntary churn from voluntary
If you would rather not build
- Stripe Smart Retries, which is built in
- Your own flow page plus webhooks
- Nothing, if your volume is small
The escape hatch
open source · no votes, no paid placement
Killbill
$0Open billing with configurable dunning and retry schedules.
killbill/killbillfree · open source
Why this verdict
our own opinion · changed only by a person
74/100
Verdict yes at 74. Dunning and a cancellation flow are ordinary; separating involuntary from voluntary churn is the reporting decision that matters.
History
tracked since 10 Aug 2026 · nothing is ever overwritten
Nothing recorded yet. This chart fills in once the page has visitors, votes or prompt copies — it will not draw a flat line to look busy.
Questions about Churnkey
answered from the record above
Is Churnkey free?
No — the plan we track is $250 a month. From around $250/month billed monthly, priced on subscriber volume.
Can you replace Churnkey by building your own?
YES. Replaceable in one session with an AI coding agent. Replacement score 74 out of 100, build time one session. Read what you lose before you decide.
How much does Churnkey cost?
$250 a month on Growth — $3,000 a year. Recorded 10 Aug 2026.
What do you lose by replacing Churnkey?
Retry schedules for declined cards tuned against millions of attempts, which recovers real revenue; Cancellation offers tested for what actually retains; Reporting that separates involuntary churn from voluntary. If any of those carry weight for you, keep paying.
Is there an open-source alternative to Churnkey?
Yes: Killbill, Listmonk. The prompt on this page is for when you want it your way instead.
Related entries
same category first, most replaced first
Documenso
SendOwl
Memberstack
RewardfulEvery week, something stops being worth paying for.
New verdicts, prices that moved, entries added. One email a week. Unsubscribe in one click.
free forever · no tracking pixel · every prompt stays free on the site