Let's breakdown those acronyms.
APR is most often expressed in terms of an interest rate (%). Annual percentage rate (APR) is a measure that attempts to calculate what percentage of the principal you’ll pay per period (in this case a year), taking every charge from monthly payments over the course of the loan, upfront fees, etc. into account.
APR is the annual rate of interest that is paid on an investment, without taking into account the compounding of interest within that year. APR is calculated by multiplying the periodic interest rate by the number of periods in a year in which the periodic rate is applied. It does not indicate how many times the rate is applied to the balance.