From Yutaka Onizuka:
If you are a homeowner who wants to monitor your additional payments in your fixed rate mortgage (and see how you are handsomely rewarded by your good behavior), this may be just the app for you. This app lets you keep track of your additional principal amount at any point of your payments. By continuously monitoring the progress, you can better plan your payoff schedule that fits your familys lifestyle while reducing the risk of stretching it too much for a rainy day.Use it as a simple loan amortization calculator, test different interest rates, as a simulator for your future plan, or, what it is the best at, a tracker of your pay down over the life of your loans. You can enter and keep track of different additional principal amounts for any of your payment throughout the life of your mortgage. You can visualize your paydown progress and the interest savings in multiple graphs. You can import/export your loan data and payments easily between iPhone, iPad, and other devices. Use various methods including AirDrop, email attachment, or many other cloud services.
What's new in this version:
Now you can enter multiple additional payments in batch at once. Improved import/export feature allows you to exchange loan/payments data using AirDrop, email attachment, or other cloud services. (This will replace previous iTunes file share support)