ProsperStack alternative: NoChurn vs ProsperStack

ProsperStack started as a cancellation flow tool and added revenue recovery and win-back campaigns over time. Its pricing is built around the number of cancel sessions you get each month. NoChurn covers failed payments, cancel flows and win-back for teams on Stripe, or on any billing through a REST API, and its price depends only on MRR.

This page is based on ProsperStack’s public pages as of November 2026. See the sources at the bottom for the current details.

At a glance

	NoChurn	ProsperStack
Pricing model	Flat monthly price by MRR band	Tiers by monthly cancel sessions
Starting price	Free until $300 MRR, then from $9/month	Grow from $200/month for 50 cancel sessions; extra blocks of 50 sessions at $75, up to 500
Higher tiers	$49 to $75k MRR, $149 to $200k, $399 to $500k, custom above	Prosper at $750/month for 500+ sessions; Enterprise on quote
Billing platforms	Stripe, Chargebee, Recurly, Maxio, Zuora, Paddle, Lemon Squeezy, Polar, Braintree, Mollie, GoCardless, Razorpay, App Store, Google Play; any other billing via REST API	Stripe, Chargebee, Recurly, Braintree, Paddle, Maxio, Recharge, Zuora, Bold and more; feature support varies by platform
Failed payments	Smart retries, AI-written emails, hosted card update page	Revenue recovery included
Cancel flow	Reason, matching offer, confirm; one-click cancel on every step	Customizable cancellation flows; multiple flows and A/B testing on Prosper
Win-back	Emails at 30, 60 and 90 days, based on the cancel reason	Winback campaigns
Custom data / AI	Send any attribute or event; statistics find churn drivers, AI explains them; churn score at signup	Cancellation reason reporting [À VÉRIFIER for AI features]
API / headless	REST API, signed webhooks, headless cancel flow, MCP server	[À VÉRIFIER]
Contract	Self-serve up to $399/month	Monthly billing listed by third parties [À VÉRIFIER]

Where ProsperStack is a good fit

• Your billing is not on Stripe. ProsperStack lists a long set of billing integrations, including Chargebee, Recurly, Braintree, Paddle, Maxio and Zuora. If you want a native connector for one of these today, that is a real advantage. NoChurn works with those through our API for now.
• Your cancellation volume is low compared to your revenue. Session-based pricing can cost less than MRR-based pricing when you have high revenue and few cancel attempts.
• You want to test many cancel flows against each other. Multiple flows and A/B testing are part of their Prosper plan.
• You want a team that has focused on cancel flows for years. ProsperStack has built its product around this moment in the customer lifecycle.

Where NoChurn is different

Price depends on MRR, not on how many people click cancel. NoChurn is free until $300 MRR, then from $9/month, in small steps up to $399/month at $500k MRR. A spike in cancel attempts does not raise your bill. See pricing.

Every feature on every plan. There is no “upgrade to unlock A/B tests” step. The free plan and Scale have the same product.

Never a cut of recovered revenue. That will not change as you grow.

Stripe in one click, or any billing through the API. Without Stripe, you keep your own billing and send subscriptions, payments and cancellations to our REST API.

Click-to-cancel built in. Every step shows a one-click “cancel now.” Customers see an offer that matches their reason (a Stripe coupon, a pause, a downgrade or a call), and they can always leave. Rules around easy cancellation are changing in several places; read our overview of click-to-cancel rules.

Headless or hosted. Use the hosted modal (themes, colors, fonts, borders, logo, custom CSS, visual editor) or fetch reasons and offers from the API and render the flow yourself on web, desktop, iOS or Android. An MCP server lets coding agents do the integration work. See cancel flows.

Churn score at signup. NoChurn scores each new customer from 0 to 100 using payment method, signup source and custom data, and flags customers who remove their card before renewal so a save flow can start before the payment fails. See churn score.

Failed payments in depth. Retries can be timed to likely paydays and the customer’s local time, or you can keep Stripe Smart Retries. AI-written emails go out on days 0, 3, 7 and 14 by default, in the customer’s language, after your review. Replies are read and answered or routed to your team.

Churn drivers. Send any customer attribute or usage event, and NoChurn computes which ones go with churn, with sample size and confidence, then explains the results in plain language. Correlation, not cause.

NoChurn is a new product without customer results yet. ProsperStack has been in production for years.

Switching from ProsperStack

No import tool exists, so a switch is manual but short:

1. Connect Stripe with the quickstart. It takes a few minutes.
2. Export your current setup by hand. Write down each cancel reason, its offer and the copy you use, and recreate them in NoChurn.
3. Split traffic for a test period. Route part of your cancel clicks to NoChurn and keep the rest on ProsperStack. If both tools handle failed payments, assign each customer to one tool only so nobody gets duplicate emails.
4. Add win-back. Set the 30, 60 and 90 day emails for each reason.
5. Compare the same period, then keep one setup.

How NoChurn helps

NoChurn recovers failed payments, keeps cancelling customers with honest, reason-based offers, and wins back churned customers at 30, 60 and 90 days. One flat price by MRR, every feature on every plan. Read cancel flow best practices, compare pause vs discount offers, or see B2B SaaS.