Most sellers can tell you their revenue. Almost none can tell you what they actually keep. We fix that — with a free profit calculator, AI advisors, and plain-English books that teach the business math without the jargon.
AI advisors for ads, catalog, KDP, Etsy, budgeting and more.
Explore the advisors →Connects your ad data and tells you if each dollar comes back.
See the demo →Your true royalty after print costs, before you publish.
See the demo →From Personal Budget Basics to pricing, cash flow, and reading your numbers — each book is a quick, friendly read that turns a scary spreadsheet into something you actually understand. The calculator does the math; the books teach you why it matters.
Start with the free calculator →The single mix-up that quietly sinks online sellers, on one clean page. Grab it free and get plain-English money tips (no jargon, no spam).