Churnfree and ProsperStack both put a retention flow in front of your cancel button: a reason survey, an offer and a record of why customers leave. They are built for different teams. ProsperStack is a retention platform for high-volume subscription businesses: cancellation flows with segmentation and A/B testing, winback campaigns, failed-payment recovery, AI-optimized offers and integrations with 18 billing platforms, priced by cancel sessions and sold through a demo. Churnfree is a focused, no-code cancel flow tool: a reason survey, one offer per answer (a discount, a pause or a link to a page you choose) and a dashboard, for Stripe and Paddle Classic, with self-serve plans from $49/month.

In short, pick ProsperStack if you have high cancellation volume, a team that will run experiments, and need dunning, winbacks or a billing platform other than Stripe or Paddle. Pick Churnfree if you bill through Stripe or Paddle Classic, want a simple flow live this week, and want a flat monthly price you can start on your own.

This comparison uses ProsperStack’s own website and documentation and Churnfree’s product, checked on September 25, 2026. Prices are as listed on September 25, 2026. Features and prices change, so confirm on churnfree.com and prosperstack.com/pricing before you decide.

Churnfree vs ProsperStack at a Glance

ChurnfreeProsperStack
What it isA no-code cancellation flow toolA retention platform: cancellation flows, winbacks, revenue recovery, conversion incentives and AI offers
Cancel flowYes: reason survey, offer, feedback form and confirmation stepYes: surveys with conditional questions and steps, offers, deflection cards and an instant cancel step
Save offersA Stripe coupon, a Paddle percentage discount, a pause of a set number of months, or a link to a page you chooseCoupons, pauses, plan changes, trial extensions and more, depending on the billing platform
Offer targetingOne offer per survey answerSegments built from billing data such as plan, MRR, LTV and tenure, plus CRM/CDP data on higher plans
Failed-payment recovery (dunning)NoYes: dunning emails, secure payment-update links and recovery offers on supported platforms (not Paddle)
Winback campaignsNoYes, on every plan
A/B testingNoFlow and offer A/B testing on Prosper and Enterprise
AI offer optimizationNoAI Autopilot on Prosper and Enterprise
Billing integrationsStripe and Paddle Classic, plus an “Other” mode with no processor. Paddle Billing is not supported18 listed, including Stripe, Chargebee, Recurly, Braintree, Maxio, Paddle, Recharge, Shopify, Naviga and Piano, plus a custom integration
Multiple websites or brandsYes: 1, 3 or 7 websites by plan, each with its own flows and dashboardNot described on the pricing page; “linked accounts” are listed on Prosper and Enterprise
Free trial14 days, no credit card, self-serve signupNo trial listed; you start with a demo
Entry price (as listed on September 25, 2026)Basic $49/monthGrow from $200/month for 50 to 500 cancel sessions
Higher plans (as listed on September 25, 2026)Professional $99/month, Business $199/month, Enterprise customProsper from $750/month for 500+ sessions, Enterprise custom
Pricing basisWebsites, active workflows and offers per planMonthly cancel sessions; extra sessions on Grow cost $75 per 50

Put a retention flow on your cancel button this week. Add a reason survey, give each answer one offer, and see which cancellations you save. Try Churnfree free for 14 days, no credit card required.

What Churnfree Does

Churnfree replaces your default cancel page with a retention flow. You build it in a no-code editor, paste the generated script into your site and connect it to your cancel button. A flow runs in a few steps:

  1. Survey. A list of multiple-choice reasons, so you learn why each customer is cancelling.
  2. Offer. Each survey answer can have one offer: an existing Stripe coupon, a one-time or recurring percentage discount on Paddle, a pause of a set number of months on Stripe or Paddle, or a link to a page you choose.
  3. Feedback. A form for anything the survey missed.
  4. Confirmation. A last screen before the cancellation goes through.

With Stripe or Paddle Classic connected, Churnfree applies an accepted pause or discount to the subscription itself, so the customer does not have to go to the processor’s site. A paused Paddle subscription resumes automatically after the months you set. If you use “Other” mode with no processor, offers link to a URL you choose. Results feed a dashboard of cancellation requests, saved requests and cancellations. See how to build a cancel flow or the step-by-step Churnfree setup guide.

What ProsperStack Does

ProsperStack describes itself as a retention platform for high-volume subscription businesses in SaaS, ecommerce and digital media. Around its cancellation flows it lists:

  • Segmented cancellation flows. Conditional survey questions and steps, deflection cards, custom branding and an instant cancel step on every plan. Custom segment properties, custom CSS, multiple flows and A/B testing start on Prosper; multi-language flows are on Enterprise.
  • Offers synced to billing. Coupons, pauses, plan changes, trial extensions and subscription changes are applied to the subscription directly. What is available depends on the billing platform.
  • AI Autopilot (Prosper and Enterprise). It tests discount levels, durations and AI-written offer copy within limits you set, and can optimize for forecasted long-term value rather than acceptance rate alone. AI copy must be approved before it goes live.
  • Winback campaigns for customers who cancel, segmented by churn reason, value and tenure.
  • Revenue recovery. Dunning communications, secure payment-update links and recovery offers that work alongside your billing platform’s retries.
  • Conversion incentives that nudge free users to paid, and a no-code customer billing portal.
  • Integrations with HubSpot, Salesforce, Intercom, Klaviyo, Segment, Yotpo, Slack and Zapier, an API and an MCP server for AI agents (API, MCP and CRM/CDP on Prosper and above).

Key Differences Between Churnfree and ProsperStack

Pricing and Buying

ProsperStack prices by cancel sessions: a session starts each time a subscriber opens a flow. As listed on September 25, 2026, Grow starts at $200/month for 50 to 500 sessions, with extra sessions billed at $75 per 50. Prosper starts at $750/month for 500 or more sessions, up to 50,000, and Enterprise is custom. The pricing page offers a demo, not a self-serve trial.

Churnfree plans are priced by websites, active workflows and offers: Basic $49/month (1 website, 1 active workflow, 5 offers), Professional $99/month (3 websites, 5 workflows, 25 offers), Business $199/month (7 websites, 12 workflows, 50 offers) and custom Enterprise plans. You sign up yourself, and every plan starts with a 14-day trial with no credit card. The price does not change with the number of people who open your flow.

Start with a flat price and a flow you build yourself. Churnfree plans start at $49/month after a 14-day trial. Start your free trial.

Offers and Targeting

ProsperStack is stronger here. On Stripe it lists percentage and fixed coupons with one-time, time-limited or indefinite duration, plan changes, trial extensions, pauses for a fixed time or indefinitely, and subscription changes. Offers can be shown once per customer or to a share of customers, and targeted by plan, MRR, LTV, tenure and other properties.

Churnfree keeps it simpler: one offer per survey answer, chosen from a Stripe coupon, a Paddle percentage discount, a pause of a set number of months, or a link to a page you choose. It has no plan-change or trial-extension offers and no targeting by tenure or usage. If you want to route a new customer and a five-year customer to different offers, ProsperStack does that and Churnfree does not.

Failed Payments and Winbacks

ProsperStack covers more of the lifecycle. Its revenue recovery product sends dunning communications with payment-update links and recovery offers, and its winback campaigns re-engage customers after they cancel. Churnfree has neither: it focuses on voluntary churn at the cancel button and has no failed-payment recovery. If card failures are a big leak for you, read our guide to dunning management and use your billing provider’s retry and email settings alongside Churnfree.

Testing and AI

ProsperStack’s Prosper and Enterprise plans include flow and offer A/B testing and AI Autopilot. Churnfree has no A/B testing and no AI offer optimization. You can copy a Churnfree flow and change it, but there is no traffic split. If you have the volume to run experiments and a team to act on them, ProsperStack is the better fit.

Billing Platforms

ProsperStack lists 18 subscription platforms, including Stripe, Chargebee, Recurly, Braintree, Maxio, Paddle, Recharge, Bold, Ordergroove, Naviga and Piano, plus a custom billing integration. Churnfree connects to Stripe and Paddle Classic, or runs without a processor in “Other” mode. If you bill through anything else, ProsperStack is the only one of the two that integrates.

If You Sell Through Paddle

Both tools connect to Paddle with a vendor ID and auth code, which are Paddle Classic credentials. Churnfree does not support Paddle Billing; if you are on Paddle Billing, confirm support with ProsperStack’s team before you buy either tool.

On Paddle, the offers differ. ProsperStack’s Paddle documentation lists fixed-amount coupons (one-time or indefinite), plan changes and indefinite pauses, and marks percentage-based coupons, set-length pauses, trial extensions and revenue recovery as not supported on Paddle. Churnfree on Paddle Classic offers a one-time or recurring percentage discount and a pause of a set number of months that resumes on its own. If you want percentage discounts or fixed-length pauses on Paddle, Churnfree covers that; if you want plan-change offers, ProsperStack does.

Multiple Websites and Brands

Each Churnfree plan includes 1, 3 or 7 websites, each with its own flows, code snippet and dashboard. ProsperStack lists linked accounts on Prosper and Enterprise; ask its team how several brands would be priced if that matters to you.

When to Choose Which

Choose Churnfree if you:

  • Bill through Stripe or Paddle Classic and want a no-code cancel flow with a reason survey, one offer per answer and a pause option.
  • Want percentage discounts or fixed-length pauses on Paddle Classic.
  • Prefer a self-serve start and a flat monthly price from $49, instead of a demo and session-based pricing.
  • Run more than one website or brand on a small budget.

Choose ProsperStack if you:

  • Have high cancellation volume and a team that will run A/B tests and AI-optimized offers.
  • Need offers targeted by plan, MRR, LTV, tenure or CRM data.
  • Want dunning, winback campaigns and conversion incentives from the same vendor.
  • Bill through Chargebee, Recurly, Braintree, Maxio, Recharge or another platform Churnfree does not connect to.

Frequently Asked Questions

What is the difference between Churnfree and ProsperStack?

Both show a reason survey and an offer when a customer clicks cancel. ProsperStack is a broader retention platform with segmentation, A/B testing, AI-optimized offers, winbacks, dunning and 18 billing integrations, priced by cancel sessions. Churnfree is a focused no-code cancel flow tool for Stripe and Paddle Classic with one offer per survey answer, priced by websites and workflows from $49/month.

Is Churnfree a good ProsperStack alternative?

Yes, if you bill through Stripe or Paddle Classic and mainly need to save customers at the cancel button with a simple flow and a flat price. It is not a like-for-like replacement if you rely on ProsperStack’s segmentation, A/B testing, AI Autopilot, winbacks or dunning, which Churnfree does not offer.

How much does ProsperStack cost?

As listed on September 25, 2026, Grow starts at $200/month for 50 to 500 cancel sessions, with extra sessions at $75 per 50. Prosper starts at $750/month for 500 or more sessions, and Enterprise is custom. Plans are sold through a demo.

How much does Churnfree cost?

Churnfree has four plans: Basic at $49/month (1 website), Professional at $99/month (3 websites), Business at $199/month (7 websites) and custom Enterprise plans. Every plan starts with a 14-day free trial with no credit card.

Does ProsperStack have a free trial?

ProsperStack’s pricing page does not list a free trial. Each plan starts with a demo.

Which payment processors do Churnfree and ProsperStack support?

Churnfree supports Stripe and Paddle Classic, plus an “Other” mode with no processor. It does not connect to Paddle Billing. ProsperStack lists 18 subscription platforms, including Stripe, Chargebee, Recurly, Braintree, Maxio and Paddle, plus a custom integration, with feature support varying by platform.

Which tool handles failed payments?

ProsperStack, on supported platforms: its revenue recovery product sends dunning communications, payment-update links and recovery offers. Its documentation lists revenue recovery as not supported on Paddle. Churnfree has no failed-payment recovery.

Can I A/B test cancel flows in Churnfree?

No. Churnfree has no A/B testing. ProsperStack includes flow and offer A/B testing on its Prosper and Enterprise plans.

The Bottom Line

ProsperStack is the deeper platform: segmentation, experiments, AI offers, winbacks and dunning across many billing systems, priced for high-volume teams. Churnfree does one job, the cancel moment, for Stripe and Paddle Classic businesses, with a reason survey, one offer per answer and a flat self-serve price.

If your churn problem is customers clicking cancel and you bill through Stripe or Paddle Classic, start with the cancel flow. Build your first Churnfree retention flow today. Add a reason survey, one offer per answer and a pause option, and see which cancellations you save in the first week. Try Churnfree free for 14 days, no credit card required.