01Install
Add one hosted script
Mint a short-lived identity token on your backend, then open churnplug from your existing cancel button.
SDK ready
Cancel-flow retention for small SaaS
Turn the cancel click into a reason to stay.
A lightweight Stripe retention layer for SaaS under $20k MRR. Install in 5 lines, match each cancellation reason to a useful save, and prove the recovered revenue without inflating the number.
- 5 lines
- to install
- 3 routes
- to retain
- 1 ledger
- to prove ROI
The full loop
From cancel intent to auditable recovery.
churnplug connects the customer moment, the Stripe action, and the evidence row—without making you stitch together five products.
02Understand
Ask why they’re leaving
A Shadow DOM modal captures the reason without inheriting or breaking your product’s styles.
Reason selected
03Retain
Route to the right save
Offer a bounded discount, a pause, or extra access with a personal founder follow-up.
Offer accepted
04Execute
Apply it safely in Stripe
A tenant-scoped restricted key updates the subscription while webhook signatures protect the event stream.
Stripe updated
05Prove
Credit only defensible ROI
Every saved amount lands in a drillable ledger with a bounded horizon and stored methodology.
+$87 evidenced
Two leaks, one system
Save customers before and after payment fails.
Active churn needs a relevant conversation. Passive churn needs timely, transactional recovery. Both should resolve into the same trustworthy ledger.
Active churn
They click “Cancel”
reason_selectedtoo_expensive
offer_accepted50% × 3 months
subscription_updatedcancel_at_period_end: false
Passive churn
A payment fails
invoice.payment_failedattempt 1 of 3
magic_link_clickedStripe-hosted update
invoice.paidrecovery attributed
Reason-aware retention
Three useful routes. No random coupon roulette.
Each offer is tied to a stated problem and bounded by eligibility rules, so customers get an appropriate option and you keep control of margin.
0150% × 3 months
Discount
Price is the blocker. Apply a time-bounded coupon with a per-customer redemption cap.
02Pause × 2 months
Pause
Timing is wrong. Pause collection and automatically resume when the customer is ready.
03+30 days access
Founder save
The product is missing something. Extend access and trigger a personal follow-up email.
Evidence, not vanity
Every recovered dollar comes with a receipt.
Revenue is credited only after an explicit retention action or a paid invoice following a clicked dunning link. The amount, source, and methodology stay drillable.
Explore the live ROI ledgerSaved revenue this month
$261
Net after fee
+$182
Cancel savesub_•••8A2
3 months × $29 MRR
Payment recoveryin_•••4FC
Clicked Magic Link → paid
Cancel savesub_•••1D9
2 months × $58 MRR
Conservative by design: some customers might have stayed anyway. churnplug stores the methodology instead of claiming perfect causation.
Small footprint, serious boundaries
Built for founders who read the security page.
Your browser never sees a Stripe secret, churnplug never renders a card form, and tenant isolation is a required CI gate.
- Stripe restricted keys live in Supabase Vault
- Short-lived, signed customer identity tokens
- Cross-tenant isolation enforced by Postgres RLS
- Stripe-hosted card updates keep card data away
- Signature-verified, idempotent webhook processing
- Single-use hashed Magic Update Links
Your next cancellation is a signal
Start listening before the customer leaves.
Install the hosted SDK, run the real cancel flow, and inspect the exact ledger row it creates.