Proportional Calculator is a free Android application developed by Nikolay Frolov. It belongs to the category of Utilities & Tools and offers a simple and user-friendly approach to proportional calculations. The app is designed with Material Design 2.0, making it visually appealing and easy to navigate.

The calculator is straightforward to use, with input fields for the known ratio and the unknown value. Users can input values in decimals or fractions, and the app will calculate the answer accurately. The app also provides a feature to switch between direct and inverse proportionality, making it versatile for different types of calculations.

Overall, Proportional Calculator is an excellent tool for anyone who needs to perform proportional calculations on the go. With its user-friendly interface and accurate calculations, this app is a must-have for anyone who needs a simple and effective tool for proportional calculations.