FeeFlow
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What is FeeFlow? FeeFlow is a privacy-first, zero-runtime FinTech intelligence engine designed for SaaS founders, digital creators, freelancers, e-commerce stores, and cross-border agencies. It eliminates payment deduction ambiguity by calculating exact domestic merchant fees, international cross-border surcharges, statutory fee caps, currency exchange markups, and local taxes (VAT/GST/IVA) across 123+ sovereign countries.
Key Features:
123+ Sovereign Countries Supported: Dedicated localized calculation engines for North America, Europe, Middle East & Gulf (Mada SAR 40 cap), Latin America (Pix 0%, Conekta), Africa (M-PESA, Paystack ₦2k cap, PayFast), and Asia-Pacific (UPI, Razorpay 18% GST). 25+ Global Payment Rails: Full mathematical support for Credit Cards, ACH Direct Debit ($5 cap), SEPA, GoCardless (£4 cap), Interac (CAD $1.50 flat), Braintree, and local instant bank transfers. Proprietary Reverse Gross-Up Engine: Automatically computes the exact gross amount to invoice clients so you receive 100% of your target net payout after processor cuts. Cheapest Payment Gateway Finder: Live multi-rail comparison leaderboard ranking the most cost-effective way to accept payments in each country. Shareable Client Invoice Links & PDF Receipts: 1-click shareable fee breakdown links and downloadable PDF payment fee receipts for tax write-off audit trails. 100% Client-Side & Private: Zero tracking cookies, zero financial data storage on servers, and sub-30ms global edge speed.
Simple, fast and secure online invoicing software for small businesses. The easiest way to process payments with the major global payment providers.
FeeFlow
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FeeFlow's answer
FeeFlow was born from founder frustration with payment processor ambiguity. Sending a $5,000 invoice only to receive $4,830 due to unexpected cross-border and percentage fees created constant cash-flow leaks. We engineered FeeFlow to give online businesses mathematical transparency and automated gross-up invoice pricing before hitting 'send'.
FeeFlow's answer
Astro (Server-Driven Static Architecture), TypeScript, Tailwind CSS, and Cloudflare Pages Edge Network for global sub-millisecond calculation speeds and zero client-side tracking.
FeeFlow's answer
FeeFlow's answer
FeeFlow uniquely combines multi-country payment intelligence across 46 sovereign nations with an instant reverse Gross-Up invoicing engine. Unlike static calculators, FeeFlow dynamically compares Stripe and PayPal in real time, factors in cross-border/FX surcharges, and generates polite client invoice notes—all within a 100% private, client-side architecture.
FeeFlow's answer
Most fee calculators online are outdated, restricted to US-only rates, and cluttered with invasive ads. FeeFlow delivers 2026-accurate localized rates across 46 currencies, calculates ACH $5 cap savings, reveals true international deductions, and provides zero-latency client-side speed with complete privacy and clean modern UI.
FeeFlow's answer
FeeFlow is built for freelancers, SaaS founders, digital agency owners, e-commerce merchants, and remote consultants who bill domestic and international clients and want to protect their profit margins from hidden payment processor deductions.
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