Sale Price is a free Android app developed by Q.Zak Apps, designed to help eBay and Amazon sellers calculate their selling price and profit margin. The app considers eBay and PayPal fees, item cost, postage, and other factors to ensure the desired profit margin. It eliminates the guesswork involved in calculating the selling price and helps users to list their items on eBay quickly and confidently.

Sale Price offers a comprehensive breakdown of all fees, including eBay and PayPal fees, enabling users to understand where their money is going. The app also includes a tool to fill out UK and USA category fees automatically, making it easier for users to calculate the percentage fee for that eBay category.

The app allows users to customize all fields according to their liking and change the currency to fit their country. The pro version of the app offers additional features, such as the ability to save templates for all fields, load different templates to suit calculations, view the history of all calculations, pin important calculations for later use, and remove all ads. Although the app is targeted towards eBay users, Amazon users can also use the formula by replacing "eBay category fee" with the appropriate fee for Amazon categories.