TallyPop

Most sellers only find out what they kept after the order ships. TallyPop flips that. Enter your sale price, shipping, and cost of goods. See your real take-home after every platform fee — instantly, on every keystroke. No signup, no spreadsheets. What makes it different: a comparison strip that shows what the same product nets on Amazon, Etsy, and eBay side by side. One number tells you where to sell it. Free. No account needed.