GreatWait

GreatWait

Flow XO
+
+

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About

Churn Buster is a subscription retention software company that recovers failed payments and prevents cancellations for subscription eCommerce and SaaS businesses. It offers two products that run together or separately. Dunning coordinates retries with branded email and SMS that ask the customer to update their card, and on platforms where Churn Buster runs the retries, it controls their timing. Cancel Flows replaces a one click cancel with a short flow that offers a pause, skip, discount, or plan swap, asks why the customer is leaving, and includes a click-to-cancel option for regulated locations. Churn Buster has handled 50+ million failed payments since 2013, and its retention team has tuned the retry and campaign defaults across 1,000+ accounts. Dunning works with Stripe, Braintree, Recharge, Loop, Skio, Stay AI, Checkout Champ, Seal Subscriptions, Ordergroove, and other subscription platforms. Pricing starts at $269/mo, a flat fee by MRR tier, month to month.

About

GreatWait schedules one-off and recurring HTTPS callbacks for apps and AI agents. Create and manage schedules through an API, CLI, remote MCP server, or web dashboard. View delivery history, retry failed deliveries, and cancel, pause, or resume schedules. Controlled bulk operations help manage multiple schedules, while forecasts of upcoming deliveries support capacity planning. Pricing is usage-based at $1 per 100,000 delivery attempts, including retries, with a $10 minimum prepaid purchase. New users receive $1 in trial credit valid for 14 days. The service is designed for technical teams that need scheduled delivery to external HTTPS endpoints.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Mid-market and enterprise subscription eCommerce brands and SaaS companies that want to recover failed payments and reduce cancellations.

Audience

Developers, technical teams, and AI-agent builders scheduling webhook callbacks.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$269/mo
Churn Buster charges a flat monthly fee set by your MRR tier, with no cut of recovered revenue, so it pays for itself at about a 1% recovery rate lift. Pricing starts at $269/mo.
Free Version Not Supported
Free Trial Not Supported

Pricing

$1/100,000 attempts
Usage is $1 per 100,000 delivery attempts, including retries. The minimum prepaid purchase is $10. New users receive $1 in trial credit valid for 14 days. Additional projects cost $5 per month.
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Churn Buster
Founded: 2013
United States
churnbuster.io

Company Information

Flow XO
Founded: 2014
United States
greatwait.dev

Alternatives

Alternatives

Butter

Butter

Butter Payments

Categories

Categories

Job Scheduler Supported

Recurring Billing Features

Customer Portal Not Supported
Deferred Billing Not Supported
Discount Management Not Supported
Dunning Management Supported
Invoice History Not Supported
Multi-Currency Not Supported
Multi-Period Recurring Billing Not Supported
Payment Processing Not Supported
Recurring Donations Not Supported
Subscription Billing Not Supported

Subscription Management Features

Cancellation Management Supported
Discount / Coupon Management Not Supported
Dunning Management Supported
Enrollment Management Not Supported
Product Catalog Not Supported
Recurring Billing Not Supported
Revenue Recognition Not Supported
Revenue Recovery Tools Supported
Self Service Portal Not Supported
Subscription Plan Management Not Supported
Tax Management Not Supported
Trial Management Not Supported
Usage Tracking/Analytics Not Supported

Integrations

Braintree Supported
Checkout Champ Supported
Inveterate Supported
Loop Supported
Model Context Protocol (MCP) Not Supported
Ordergroove Supported
Recharge Supported
Recurly Supported
Rivo Supported
Seal Subscriptions Supported
Shopify Supported
Skio Supported
Smartrr Supported
Stay AI Supported
Stripe Supported

Integrations

Braintree Not Supported
Checkout Champ Not Supported
Inveterate Not Supported
Loop Not Supported
Model Context Protocol (MCP) Supported
Ordergroove Not Supported
Recharge Not Supported
Recurly Not Supported
Rivo Not Supported
Seal Subscriptions Not Supported
Shopify Not Supported
Skio Not Supported
Smartrr Not Supported
Stay AI Not Supported
Stripe Not Supported
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