Flatfight helps businesses on Stripe fight card disputes without giving away a cut of what they recover. It builds each evidence response from Stripe data plus what Stripe can’t see: customer logins, product usage and support conversations. Every claim cites a real record and nothing is submitted without your approval. Pay $9 per won dispute ($19 from $100) or a flat monthly price, instead of Stripe Smart Disputes’ 30%. Available on the Stripe App Marketplace.