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Fees are rough list prices (Stripe US cards 2.9% + 30¢; Apple Small Business Program 15%; Google Play subscriptions 15%), checked Oct 20, 2026. Real fees vary. App numbers: TrustMRR pages (revenue verified, margin typed in by the seller), an Acquire.com listing (seller-reported) and a founder's r/SaaS post (self-reported). Not financial advice. Your numbers never leave your browser.