With Margin is a powerful iOS, iPadOS, and macOS app designed to assist garage sale resellers and thrift store flippers in calculating the return on investment of their flips. In today's world, where sustainability and entrepreneurship go hand in hand, this app helps individuals give items a second chance while also exploring their entrepreneurial drive.

With Margin offers a straightforward and efficient profit and loss estimator that allows users to quickly determine whether a find is a potential hit or miss. The app allows users to input fixed or percentage-based costs, making it easy to calculate the potential profit. By entering the estimated selling price and subtracting shipping, item cost, marketplace fees, and payment processing fees, users can quickly assess the profitability of their flip.

One of the standout features of With Margin is the Custom calculator, which allows users to tap the percent (%) icon to convert line item values into percentages. This feature is especially useful for calculating percentage-based fees.

Whether you're a seasoned flipper or just starting out, With Margin is a valuable tool that provides quick and accurate insights into the potential profitability of your flips. Download it today and start maximizing your returns!