Feevio
10 essential financial calculators for small business
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Timothy Murphy

Feevio - 10 essential financial calculators for small business

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Feevio packs 10 essential financial calculators into one fast, focused iOS app — reverse tax, sales tax, discount, margin vs markup, break-even, marketplace fees, net payout, hourly rate, % change, and tip split. Built for sellers, freelancers, and small business owners. Real-time results, side-by-side comparison mode, fee presets for eBay, Amazon, Etsy, Shopify, Stripe, and PayPal, plus an Apple Watch companion. Free with ads — one-time IAP unlocks premium.

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Timothy Murphy
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Hey Product Hunt! I built Feevio because I kept bouncing between 4–5 different apps to figure out reverse tax, marketplace fees, and what I'd actually take home after a sale. None of them felt fast or focused enough for someone running a small business or side hustle. Feevio puts the 10 calculators sellers, freelancers, and small business owners actually use into one clean iOS app: • Reverse Tax & Sales Tax • Discount • Margin vs Markup • Break-Even • Marketplace Fee (with presets for eBay, Amazon, Etsy, Shopify, Stripe, PayPal) • Net Payout • Hourly Rate • % Change • Tip Split Everything updates in real time as you type, results copy with one tap, and there's an Apple Watch companion for quick checks on the go. iPad and dark mode are fully supported. It's free with ads. A single one-time purchase removes ads and unlocks premium: calculation history, saved scenarios, side-by-side comparison mode for "what if" planning, and the Apple Watch app. Would love your feedback — especially on which calculator you'd want me to add next.