Invite-only betaFirst 100 SaaS founders: 3 months freeNo credit card · Zero dark patterns
BoolBul
BOOLBUL.The Retention Interceptor

Comparison

BoolBul vs Churnkey

Churnkey is a mature retention platform built for growing subscription companies — cancel flows, failed-payment recovery, analytics and experimentation, priced by how much revenue churns. BoolBul does one job for smaller teams: a fast, honest cancellation flow inside your app, with flat indie pricing and first-class Dodo Payments support.

 BoolBulChurnkey
Best forIndie and early-stage SaaS (roughly $500–$25k MRR) that want a cancel flow live todayGrowing subscription businesses that want a full retention suite
Published pricingPro free for 3 months (first 100 SaaS), then Starter $19/mo or Pro $49/mo, flatStarter from $250/mo billed yearly ($300 monthly); Core from $500/mo; Intelligence from $625/mo; Enterprise custom — scales with monthly churned revenue
Billing providersDodo Payments, Stripe (more coming soon)Stripe, Chargebee, Maxio, Paddle, Braintree, plus a custom integration framework
Cancel flowExit survey + reason-matched pause/discount, one-click cancel always visibleConfigurable cancel flows with offers and surveys
Beyond cancellationFocused on the cancel moment and its ledgerBroader suite (e.g. payment recovery, analytics, testing) depending on plan
Your gateway keysNever shared: your server applies offers using signed tokensConnected through their provider integrations
SourceOpen core (AGPL-3.0) — self-host the core if you wantProprietary SaaS
If it's downFails open in 1.5 s to your normal cancellationSee vendor documentation

When Churnkey is the better choice

  • You bill through Chargebee, Maxio, Paddle or Braintree today.
  • You want failed-payment recovery, deep analytics and A/B testing in one vendor, and the budget fits.
  • Your churned revenue is large enough that a revenue-scaled plan pays back easily.

When BoolBul fits better

  • You're on Dodo Payments or Stripe and want a cancel flow live this afternoon — script tag plus two server routes.
  • $250+/month is more than your whole tool budget; one saved $49 subscriber pays for BoolBul Pro.
  • You don't want to hand gateway access to another vendor, or you want the option to self-host the open-source core.
  • You ship a mobile app and need the flow in a WebView with native callbacks.

Switching is low-risk

BoolBul sits on your existing cancel button and fails open, so you can try it on a slice of traffic, compare save rates in the dashboard and remove it with one line. Exit reasons use the same values Stripe and Dodo Payments store as cancellation feedback, so your historical reporting stays comparable.

Churnkey plans and integrations taken from churnkey.co/pricing (page last updated October 7, 2026), reviewed November 2026. Check their site for current pricing. Churnkey is a trademark of its respective owner; BoolBul is not affiliated with Churnkey.

See the indie-priced alternative in action

First 100 SaaS founders get BoolBul Pro free for 3 months — no credit card.