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 family’s 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

Version 1.5

Ads network change. It is necessary for us to keep the app free. Thank you for your understanding.

Ratings and Reviews

3.6 out of 5
25 Ratings

25 Ratings

Briguy2485 ,

Extra off schedule payment option needed

Although it allows for adding extra principle to the monthly payments it does not allow for adding independent extra payments. When I make mid month principle only payments I’m forced to account for it in the next monthly payment which makes the calculation inaccurate.

AB2468AB2468 ,

Amazing app!!

I wanted something like this and found this app amazing. I could find all sorts of ways to track if I paid a set amount extra each month, how early my mortgage would be paid off but couldn't find anything that allowed me to input different amounts to pay extra each month. This app does just that. So I can pay whatever extra I can, which varies by month, and see exactly how it helps my mortgage. Seeing that calculation of how much each extra amount saves me in interest is very reinforcing and motivating!

Ccordiva ,

No bi-weekly

I would like to see bi-weekly. I can put in the amount of 26 payments per year but does account that I’m making extra principal payments. It still shows a 30 year pay off date when it’s actually less

App Privacy

The developer, Yutaka Onizuka, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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