RS Cash is a free Android app created by Devil Masud under the Education & Reference category. The app is designed to help users learn about different currencies and their exchange rates. It has a simple user interface that makes it easy to navigate and understand.

The app features a comprehensive list of currencies from around the world, including their respective exchange rates. Users can also use the app to convert between different currencies. The app is regularly updated to ensure that the exchange rates are accurate and up-to-date.

Overall, RS Cash is a useful app for anyone who wants to learn more about currencies and their exchange rates. It's easy to use and provides accurate information, making it a great tool for travelers, students, and anyone interested in global economics.