Gann Square of 9 is a lightweight and easy-to-use calculator designed for stock and futures traders. With this tool, you can quickly find buy/sell levels of stocks and futures. The app is available for Android devices and is completely free to use.

The interface of the Gann Square of 9 calculator is simple and intuitive. You can enter the price of the stock or future you are interested in and the calculator will automatically generate the buy/sell levels based on the Gann Square of 9 method. The app also allows you to save your calculations for future reference.

It is important to note that this is a self-service tool, and the developer, Quant Assisted Trader, takes no responsibility for any trades or potential losses incurred while using the app. Overall, Gann Square of 9 is a useful tool for traders who want to quickly and easily find buy/sell levels for stocks and futures.