Churn Buster

What Churn Buster does

Churn Buster helps subscription ecommerce, SaaS, membership and digital subscription businesses recover failed payments and reduce cancellations. Its dunning service tunes retry timing, sends branded email and SMS asking customers to update cards, and records a recovery only after payment clears.

Cancel Flows asks why a customer is leaving, presents offers matched to that reason, and reports exit feedback. Merchants can add Smart Offers, A/B tests, segmentation, Sentiment AI and an optional one-click cancellation path.

Fees and plans

Measure is free. It includes measurement analytics and the Churn Buster MCP, which the company says is available to every account for querying retention data through AI clients.

Dunning Only starts at $269 a month. It includes failed-payment recovery, email and SMS campaigns, analytics, setup and account reviews. Dunning or Cancel Flows also starts at $269 a month for one product, with a flat monthly fee based on MRR tier. Cancel Flows Only starts at $269 a month and includes cancellation save flows, reason collection, offers, testing and analytics.

Dunning & Cancel Flows starts at $430 a month and includes both products. Complete Retention Solution starts at $430 a month and adds analytics, setup and account reviews to Dunning and Cancel Flows. Paid plans are month-to-month with no contract, and the company says customers can cancel at any time.

Advisory costs $2,500 one time, based on MRR, for 60 days of measurement, a benchmark report and a one-hour review. The listed paid prices are starting prices; the monthly flat fee is set by MRR tier.

Where it runs

Churn Buster runs through a web interface and an API.

Unsupported platforms can connect through a custom API by sending charge-failed, charge-succeeded, subscription-cancelled and payment-method-updated events. The API documentation covers authentication, payment and cancellation endpoints, customer records, annual-renewal emails and outbound webhooks.

The maker lists integrations including Stripe, Recharge, Shopify, Loop, Skio, Stay AI, Seal, Ordergroove, Smartrr, Awtomic, Recurly, Braintree, Checkout Champ, Rivo, Subbly and Inveterate. Stripe and Braintree customers can use no-login card-update pages with 3-D Secure.

Protection, as Churn Buster publishes it

Churn Buster says raw card numbers and other sensitive payment-method data do not reach or remain on its servers. It says traffic uses TLS/HTTPS and stored data uses AES-256 encryption.

Its security page lists annual PCI SAQ-A filing, yearly independent penetration testing, and GDPR and CCPA provisions in its data-processing agreement. The company says event data and individual webhooks are kept for 90 days, then customer data is eradicated when service ends.

The service agreement licenses the API non-exclusively for a limited term, which describes proprietary hosted software rather than open-source software. The published facts do not state a financial licence, deposit protection or a dispute process.

Strengths

Retry tuning uses payment recency, frequency, duration and decline behavior. Recovery reporting separates four outcomes for each failed payment and counts success only after the charge clears.

Cancel Flows combines reason collection, matched offers, Smart Offers, A/B testing, segmentation and sentiment analysis. Paid onboarding takes about an hour with campaign tuning and account reviews, and support is offered by email, chat and video calls.

Catches and conditions

Paid pricing starts at $269 a month but the flat fee depends on the merchant's MRR tier. The Advisory option is a separate $2,500 one-time engagement based on MRR.

Integrations depend on third-party APIs. The terms say an integration may fail or end if that provider changes or withdraws its API. The facts do not state country or currency coverage beyond saying multi-currency billing is available.

The company says paid setup takes about an hour and support responds within one business day. Check whether the listed integrations, API events and chosen product fit your billing system before signing up.

Who may want another tool

Churn Buster may not fit a business that needs a native phone app, a published country list, or pricing unrelated to MRR tiers.

Verdict

Churn Buster is aimed at mid-market and enterprise subscription brands that want failed-payment recovery, cancellation save flows, or both through web tools and an API. Its free Measure plan provides analytics and MCP access, while paid products add campaign automation, testing, setup and reviews from a $269-a-month starting point. Costs rise with MRR tiers, and integrations rely on outside platforms. Businesses needing mobile apps, clearly stated geographic coverage or a different billing model may find the fit less direct.

Questions