A free app for Android, by Marble Apps.

If you have multiple credit cards and are looking at which credit card debt to pay off first, you need to see what is the total interest you will be paying. The total interest you will be paying is the amount you will have to pay each month for your credit card balance.

The monthly payment calculator allows you to enter either your current monthly payment or the amount you can afford to pay. If you choose the first option, the calculator will find out the amount of your current monthly payment and the amount you can afford to pay each month.

You will be able to see the amount of your interest and the total cost of your credit card debt in seconds.