JavaScript is a lightweight, interpreted programming language.

ChurnBuster
Slicker
ChurnKey
Valkyrie recovers revenue lost to failed Stripe payments. Connect your account, see what you're losing, pay only 25% of what we recover.

Website, pricing, platforms and company facts side by side.
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JST
JavaScript Tutorial
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| Website | appcreator24.com | valkyriemrr.com |
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| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in | — |
In their own words, as submitted to SaaSHub.

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Valkyrie is a failed payment recovery service built specifically for Stripe subscription businesses. When a customer's payment fails, Stripe's built-in Smart Retries handle some of it automatically. But hard declines like expired cards, lost cards, wrong card numbers need the customer to actually...
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As answered by people managing JavaScript Tutorial and Valkyrie.
Valkyrie's answer:
Founders and operators running subscription businesses on Stripe with monthly recurring revenue between $5,000 and $500,000. Typically bootstrapped or early-stage, managing billing themselves without a dedicated finance team, and losing 5-8% of MRR to failed payments without knowing it.
Valkyrie's answer:
Valkyrie only charges on the lift above what Stripe already recovers for free. Most recovery tools take credit for Stripe's own automatic retries. We show you exactly what Stripe did versus what we found, and only bill on the difference. Free analysis before you commit to anything.
Valkyrie's answer:
Most recovery tools charge a monthly platform fee regardless of results, and count Stripe's own automatic recoveries as their wins. Valkyrie charges nothing unless it recovers money above what Stripe already does for free. You can connect your Stripe account and see your exact recoverable amount before paying anything. No demo call, no sales process, no minimum commitment. 25% of what we find, nothing else.
Valkyrie's answer:
Valkyrie was built by Bruce O'Toole, a finance and operations professional who kept seeing the same problem: subscription businesses carefully managing their revenue while quietly losing 5-8% of MRR to failed payments nobody was chasing. Stripe recovers some automatically. The rest just disappears. Valkyrie was built to chase the rest, with full transparency on every dollar and a pricing model that only works if the merchant wins first.
Valkyrie's answer:
Next.js, Supabase (PostgreSQL), Stripe Connect, Resend, Vercel. Built and designed using Claude Code and v0 by Vercel.
Valkyrie's answer:
Valkyrie launched in 2026 and is currently onboarding its first merchants. Early users are subscription SaaS founders and membership businesses in the $5,000 to $100,000 MRR range.
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