Simple Interest Calculator is an Android app developed by ZaidiSoft that provides an easy way to calculate simple interest on an investment. This free app is designed for those who want to determine how long it will take to earn a specific amount of money in one year. It can also calculate any missing variable in the formula.

The app's user interface is simple and easy to use. With just a few clicks, you can enter the principal amount, interest rate, and time period to get the calculated result. The app also provides a clear breakdown of the principal, interest, and total amount, making it easy to understand the calculation.

Overall, Simple Interest Calculator is a useful tool for investors who want to quickly and accurately calculate simple interest on their investment. Download it today and see for yourself how easy it is to use.