Have you ever wondered what the interest rate is when you take a Payday Loan? Then this app calculates the interest rates for different kinds of Payday Loans. The Annual Percentage Rate (APR) and Effective Annual Rate (EAR) are calculated for these Payday Loans. Just enter the loan amount, the amount to pay back, and the number of days to pay back for each Payday Loan. This app gives you the ability to compare the interest rates of many Payday Loans each with different terms.