ChurnNote vs ProsperStack
ProsperStack is a mature cancel-flow platform on Stripe, Chargebee, Recurly, Braintree, Maxio, and Shopify with deep A/B testing and AI offer optimization, sold on a demo motion. ChurnNote ships Smart Cancel Flow on Stripe and Lemon Squeezy plus Reply Intelligence and Product-change win-backs with recovered-MRR attribution, at a flat $12/mo with no demo.
ChurnNote
Personal exit emails, automated
Price: $12/mo or $99/year
Best for: Indie SaaS founders ($500-$15K MRR)
Focus: Post-cancellation feedback via personal emails
ProsperStack
Enterprise cancel-flow & retention platform
Price: Demo-based (built for high-volume businesses)
Best for: High-volume subscription businesses on Stripe / Chargebee / Recurly / Braintree / Maxio / Shopify that want a mature A/B-testable cancel flow with AI offer optimization
Feature Comparison
| Feature | ChurnNote | ProsperStack |
|---|---|---|
| Stripe support | ✓ | ✓ |
| Lemon Squeezy support | ✓ | — |
| Chargebee / Recurly / Braintree | — | ✓ |
| Smart Cancel Flow (hosted save page) | ✓ | ✓ |
| Cancel flow A/B testing | — | ✓ |
| AI offer optimization | — | ✓ |
| Failed payment recovery | Email, 3-step | Included |
| Churn Radar (at-risk signals) | ✓ | Partial via dashboard |
| Reply Intelligence (structured) | Reason, sub-reason, recoverability, draft reply | Exit survey dropdown only |
| Requests page (clusters asks) | ✓ | — |
| Product-change win-backs | ✓ | — |
| Recovered MRR per shipped change | ✓ | — |
| Founder review before every send | ✓ | Flow runs by rules |
| Multi-business (multiple accounts) | ✓ | Per workspace, enterprise |
| Pricing | $12/mo flat, unlimited | Demo-based |
| Setup time | 60 seconds | Onboarding / demo |
ProsperStack Strengths
- ✓Mature cancel-flow builder with deep customization and AI-powered offer optimization
- ✓A/B testing across cancel-flow variants to optimize save rates over time
- ✓Exit surveys with customer segmentation
- ✓Broad billing support: Stripe, Chargebee, Recurly, Braintree, Maxio, Shopify
- ✓Revenue recovery / dunning included
- ✓Used by larger subscription teams with mature retention operations
Where ProsperStack Falls Short
- ✗Demo-based pricing, enterprise-leaning. Heavier procurement
- ✗No Lemon Squeezy support
- ✗No structured Reply Intelligence. Exit-survey captures dropdown selections, not reason + sub-reason + recoverability + draft reply
- ✗No Requests clustering across cancellations into a roadmap of customer asks
- ✗No Product-change win-backs that credit recovered MRR back to the exact ship
- ✗Setup heavier than founder tools usually want, given the configuration surface area
The cancel flow comparison
Both products ship a cancel flow. ProsperStack’s is the more mature instrument: deeper offer customization, A/B testing across variants, AI-powered offer selection. ChurnNote’s Smart Cancel Flow covers the core moves (pause, downgrade, lighter plan, founder follow-up) and runs natively on both Stripe and Lemon Squeezy. If you have the cancellation volume to A/B test offer variants and you bill on one of ProsperStack’s supported platforms, ProsperStack’s flow is the better instrument. If you want a working flow you can ship today on either Stripe or Lemon Squeezy with a flat price, ChurnNote covers it.
The platform difference
ProsperStack supports Stripe, Chargebee, Recurly, Braintree, Maxio, and Shopify, but not Lemon Squeezy. ChurnNote supports Stripe and Lemon Squeezy. If you bill on Lemon Squeezy, ChurnNote is the only one of the two that can run on your account.
Where ChurnNote pulls ahead
Three pieces of ChurnNote have no ProsperStack equivalent and matter most for founders running the product themselves:
- Reply Intelligence.ProsperStack’s exit survey collects dropdown selections. ChurnNote sends a personal email after cancellation, captures the reply, and runs a structured extractor that returns reason, plain-English sub-reason, named feature or competitor, recoverability score, and a draft founder reply. Five fields per cancellation, not one.
- Requests.ChurnNote clusters customer asks across cancellations into a single ranked list. “API access, 5 customers asked” instead of five scattered exit surveys.
- Product-change win-backs. Record what you shipped. ChurnNote finds the customers who asked for it, drafts a targeted win-back, and credits recovered MRR back to that specific change when a customer subscribes again. ProsperStack has no equivalent.
The pricing difference
ProsperStack uses demo-based pricing, which signals enterprise procurement. Flat $12 per month. No tiers, no per-event fees, no feature gating. No demo, no tiers, no per-event fees.
When to choose ProsperStack
You have high cancellation volume. You want a mature cancel-flow builder with A/B testing and AI offer optimization. You bill on one of ProsperStack’s supported platforms (not Lemon Squeezy). You’re comfortable with a demo motion and enterprise procurement.
When to choose ChurnNote
You bill on Lemon Squeezy and need an integration that exists. Or you bill on Stripe and want flat pricing without a demo. You want Reply Intelligence on every cancellation and Product-change win-backs that credit recovered MRR back to the exact ship.
Using both
On Stripe, the two can complement each other. ProsperStack runs the A/B-tested cancel flow with AI offer optimization. ChurnNote runs Reply Intelligence on cancellations that still complete, plus Product-change win-backs when you ship a fix. On Lemon Squeezy, ProsperStack is not an option. ChurnNote covers the full loop on its own. See the ProsperStack alternative guide for the broader market.
Try ChurnNote. $12/mo, cancel anytime
Connect Stripe or Lemon Squeezy. When a customer cancels, they get a personal email. You get their honest answer.
Get started with ChurnNote