This App lets you keep your Credit Cards Usage Rate using Card's Balances and Credit Limits in order to plan payments over Cards with the highest Rate. You only need to keep your Balance updated, then put your estimated Payment, and you’ll see how enough is such value to reduce your debt therefore your Rate. 
Some functions are:
- Create and edit up to 10 credit cards.
- Entry Balance, Credit Limits and estimated Payments.
- Calculate and present overall Rate and show a list with Rate by Card.
- Present a list with estimated Payments
Note: This App doesn’t consider interests, purchases and other charges; so that, you have to update the Balances, after card statement is ready from your bank or financial institution, for instance.