A SIP (Systematic Investment Plan) calculator app is a tool designed to help individuals estimate the potential returns on their investments made through SIPs in mutual funds. SIPs allow investors to invest a fixed amount regularly (weekly, monthly, etc.) in a chosen mutual fund scheme. The calculator typically takes inputs such as the invested amount, duration of investment, expected rate of return, and calculates the potential future value of the investment. These apps can be quite handy for investors to plan their investments and set realistic goals.

If the user enters the monthly investment amount, interest rate, and the number of years, the app calculates the total growth and total investment, while also displaying the growth and investment for each year.