Dev Tools · 1h ago
Open-Source Calculator Reveals True Seller Earnings on Software Marketplaces
A developer built a free, open-source calculator that shows how marketplace fees, VAT, and payment processing cut into software sellers' revenue. The tool supports three VAT modes and accounts for commissions, refunds, and affiliate costs. It's available as a live web app and a TypeScript engine on GitHub.
Meridian48 take
Useful for indie developers, but the real story is how opaque marketplace fee structures remain — this tool shouldn't need to exist.
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I Built an Open-Source Seller Earnings Calculator for Software Marketplaces →
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