RetryFi
ChurnKey
ChurnBuster
Stunning
PaymentRescue.dev
Baremetrics Dunning & Retention
BareMetrics
ProfitWell Retain from Price Intelligently
socketify.py
Failed payments are the silent MRR killer for subscription SaaS โ Stripe retries the card, but nobody tells the customer to fix it. RetryFi closes that gap. It connects to your Stripe account with OAuth in seconds โ RetryFi only reads your billing data and retries failed invoices; it never creates charges or modifies your Stripe data. It then runs an opinionated, branded four-email dunning sequence that's aware of the decline code: soft declines get smart retries, hard declines skip straight to a "fix your card" email with a one-click update link. You get a recovery dashboard and a 90-day historical scan of what you've already lost. Built for indie and bootstrapped SaaS on Stripe โ free up to 10 recoveries a month, no platform price tag.
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RetryFi's answer
RetryFi is opinionated about why a payment failed. It reads the Stripe decline code and reacts: soft declines (insufficient funds, generic) get smart retries, while hard declines (expired or lost card) skip retries and go straight to a branded "fix your card" email with a one-click update link. It runs alongside Stripe's own retries as a single branded sequence โ no generic Stripe notices, no platform price tag, and no percentage cut of what you recover.
RetryFi's answer
Most failed-payment tools fire generic retries or take a percentage of recovered revenue. RetryFi does neither. You get a branded, decline-code-aware sequence sent under your own name and logo, a recovery dashboard, and a 90-day historical scan of what you've already lost โ set up in seconds with Stripe OAuth, no code. It's built and priced for indie SaaS: free up to 10 recoveries a month, flat $29 and $79 tiers above that, never a cut of your revenue.
RetryFi's answer
Indie and bootstrapped SaaS founders running subscriptions on Stripe โ usually solo or small teams losing recurring revenue to failed payments, who don't want an enterprise dunning platform or a tool that skims a percentage of what it recovers.
RetryFi's answer
Next.js (React 19, TypeScript) front and back, Supabase (Postgres) for data and auth, the Stripe API via Connect/OAuth for billing, Inngest for the durable retry and dunning workflows, Resend + React Email for the branded emails, Recharts for the dashboard, and Tailwind CSS for the UI.
Based on our record, socketify.py seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
These "benchmarks" are useless, they're not testing anything real world except the performance of uWebsockets. There are copy errors all over the place. And then an advertisement: https://github.com/cirospaciari/socketify.py#briefcase-comme... Is this a professional framework that produces proper, real-world benchmarks and... - Source: Hacker News / over 3 years ago
After starting the project called socketify.py at https://github.com/cirospaciari/socketify.py, I got pretty good results and reviews, but many people asked if socketify.py could be used to create a WSGI and ASGI server. WSGI and ASGI have a lot of overhead, that's is why I choose not to use them in the first place, but adding an ASGI and WSGI server allows a lot of code already written to run faster! Source: over 3 years ago
ChurnKey - The only platform that fixes every type of churn for you.
ChurnBuster - Stop Losing Money toFailed Payments in Stripe. Churn Buster saves you thousands of dollars every month by ensuring your customers update their payment information.
Stunning - Dunning emails, failed payments, churn prevention, event notifications, custom HTML receipts and more for Stripe subscriptions, with iPhone app and push notifications
PaymentRescue.dev - Subscription dunning & payment recovery
Baremetrics Dunning & Retention - Automatically collect on failed charges in Stripe
BareMetrics - SaaS Analytics for Stripe
