TLDR: Churnkey is the sharpest all-in-one churn-prevention tool in its lane (failed-payment recovery plus cancel flows in one product). But it is quote-based and scales with your revenue, so it is not always the right first move. The best alternative depends on what you actually need:
- Just failed payments, on Stripe: Stripe Smart Retries (free) or Stunning
- Just a cancel flow: ProsperStack or Raaft
- Already on Chargebee: Chargebee Retention (formerly Brightback)
- Done-for-you recovery at volume: Gravy or Butter Payments
- Inside a metrics tool you already pay for: Baremetrics Recover
The mistake I see most often: teams buy a churn tool before they know their churn split. Half the time the involuntary churn the tool would recover is already tiny, and the money would have been better spent on activation. Find your split first, then buy.
Is a paid churn tool even worth it for you? (calculator)
Before comparing tools, work out how much there is to recover. If the number is small, no tool on this list will pay for itself. Move the sliders to your numbers.
What is churn actually costing you?
Rough estimate of revenue you could recover with dunning + a cancel flow.
Where these numbers come from: the calculator assumes a well-run dunning setup recovers roughly half of failed-payment (involuntary) churn, and a decent cancel flow saves about 15% of voluntary cancellations. Those are conservative mid-points from what I see across retention experiments; Churnkey and others will quote higher recovery rates, and sometimes they hit them. The point is not the exact figure. It is that your recoverable revenue is bounded by your churn volume, so a tool can only ever be worth a fraction of what you are already losing. Run the math before you take the demo.
Why look for Churnkey alternatives?
To be clear, Churnkey is good. It is one of the few tools that does both failed-payment recovery and cancellation flows well, in one place, and the writing on their blog is the sharpest in the category. But there are real reasons teams look elsewhere:
- Quote-based pricing. There is no flat public price, and the cost historically scales with revenue or recovered amount. Smaller teams often find the quote hard to justify against their actual recoverable revenue. See our Churnkey pricing breakdown.
- You only need half of it. Plenty of teams just need dunning, or just need a cancel flow. Paying for an all-in-one suite when you use one module is wasteful.
- Stack lock-in. If you already live in Chargebee or Baremetrics, a native module avoids yet another integration.
- You want it hands-off. Churnkey is a self-serve toolkit. Some teams would rather pay someone to just run recovery for them.
Where each Churnkey alternative fits
The eight tools below split along two axes: how much they do (dunning only vs full churn suite) and how hands-on they are (DIY toolkit vs done-for-you). Here is the map before the detail.
1. Stripe Smart Retries (best free dunning)
If you are on Stripe Billing, Smart Retries is the obvious starting point and it is free. It uses Stripe's network data to time retries when a card is most likely to succeed. It stops at retries, though: no branded dunning sequence, no cancel flow, no reactivation. For a team whose only churn problem is failed payments, it is often enough. Start here, then add tools when you outgrow it. We cover the setup in best dunning tools for Stripe.
2. Stunning (dunning for Stripe, more control)
Stunning sits between free Stripe retries and a full suite. It adds branded dunning emails, a hosted card-update page, and more control over the recovery sequence, all focused on involuntary churn. No cancel flow. Good if Stripe's native emails are too generic but you do not want a whole churn platform.
3. Raaft (cheapest dedicated cancel flow)
Raaft is a focused cancellation-flow tool for Stripe subscriptions, starting around $99/month. It intercepts cancellations with a survey and offers (discount, pause, downgrade). It does not do dunning. If you have Stripe retries handling involuntary churn and you just want to fight voluntary cancels cheaply, Raaft is the value pick.
4. ProsperStack (best-in-class cancel flow)
ProsperStack goes deeper than Raaft on the cancel-flow side: segment-specific offers, A/B testing, pause and downgrade paths, and solid reporting on what saved revenue. If the cancellation flow is where your churn lives and you want to optimize it seriously, ProsperStack is the specialist. See our cancellation save flow software roundup.
5. Chargebee Retention (formerly Brightback)
Brightback was a leading cancel-flow tool before Chargebee acquired it and rebranded it as Chargebee Retention. It is strongest if you already run billing on Chargebee, since the integration is native. As a standalone for non-Chargebee shops, it is harder to justify over ProsperStack or Churnkey now.
6. Gravy (done-for-you recovery)
Gravy leans toward a managed, done-for-you model for recovering failed payments and reactivating churned customers, rather than a self-serve toolkit. If you have the volume and would rather outsource recovery than run it, this is the different shape on the list. Pricier per the hands-off model.
7. Butter Payments (AI-driven failed payment recovery)
Butter Payments focuses narrowly on involuntary churn with intelligent retry logic across payment processors. It is a recovery specialist, not a churn suite, and it is aimed at companies with enough failed-payment volume to make the optimization worth it. Strong for larger subscription businesses where even a few points of recovery is real money.
8. Baremetrics Recover (dunning inside your metrics tool)
If you already use Baremetrics for subscription analytics, Recover adds dunning on top without a new integration. It is convenient rather than best-in-class, but for a Baremetrics shop with light needs it removes a tool from the stack. See Baremetrics alternatives if you are evaluating the analytics side too.
Churnkey alternatives compared at a glance
| Tool | Covers | Starting price | Best for |
|---|---|---|---|
| Churnkey | Dunning + cancel flow + reactivation | Quote-based | All-in-one, mid-stage+ |
| Stripe Smart Retries | Retries only | Free | Anyone on Stripe Billing |
| Stunning | Dunning | ~$100/mo | Branded dunning on Stripe |
| Raaft | Cancel flow | ~$99/mo | Cheap cancel flow |
| ProsperStack | Cancel flow | Quote-based | Serious cancel-flow optimization |
| Chargebee Retention | Cancel flow | Quote-based | Chargebee billing users |
| Gravy | Recovery (managed) | Quote-based | Done-for-you recovery |
| Butter Payments | Recovery (AI) | Quote-based | High failed-payment volume |
| Baremetrics Recover | Dunning | Add-on | Existing Baremetrics users |
Pricing here is directional and rots fast; always confirm current numbers with the vendor. The pattern that does not change: the single-purpose tools are cheaper and the all-in-one suites cost more but remove integration work.
So which should you actually pick?
My honest decision rule, after running the math above:
- If recoverable revenue is under ~$3k/year: do not buy anything yet. Turn on Stripe Smart Retries and build a one-screen cancel survey. Put the effort into why people are leaving instead.
- If you only have one problem: buy the specialist. Stunning for dunning, ProsperStack or Raaft for cancel flows. Cheaper and better at the one job.
- If you have both problems and the volume to justify it: Churnkey's all-in-one is genuinely convenient, provided the quote lands well under your recoverable number. If it does not, run two specialists.
- If you want it hands-off: Gravy or Butter for managed recovery.
A tool recovers churn you can measure. It does not fix the churn you are causing upstream with weak activation. If most of your churn is people who never got value, no dunning tool will save them.
Where to start
Before you pick a tool, get the one number that decides everything: your voluntary vs involuntary churn split. If you have not measured it, start with what is involuntary churn, then run the Churn Health Check to see which lever is actually costing you the most. From there, the dunning and cancel-flow specs are in the smart dunning experiment and the cancellation save flow experiment. And if you are deciding between native Stripe and a paid tool, read Stripe Smart Retries vs Churnkey next.