Ratio Calculator is a free Android application developed by Blue Rock that helps users calculate various ratios. The app is designed to be simple and effective, making it a great tool for anyone who needs to perform ratio calculations on the go.

The app features two main functions. The first allows users to enter numbers in both forms and calculate ratios by tapping the "=" button. The ratios that can be calculated include 1:X, X:1, %, and GCD (Greatest Common Divisor). The second function allows users to enter a number in either the left or right form and calculate the GR (Golden Ratio 1:by tapping the "=" button.

Overall, Ratio Calculator is a useful tool for anyone who needs to perform ratio calculations quickly and easily. The app's simple interface and straightforward design make it easy to use, even for those who are not familiar with ratio calculations. Best of all, the app is completely free to use, making it a great choice for anyone who needs a reliable ratio calculator on their Android device.