Mortgage Calculator is a feature-rich app designed to help you save money on your mortgage. Whether you're buying a house, refinancing, or looking to optimize your current mortgage, this app is perfect for you. With the ability to try out various "What-If" scenarios, you can easily see how making extra payments can save you both time and money.

The app allows you to enter any number of monthly, yearly, or one-off extra payments at any point during your loan. By doing so, you can watch the total loan length and cost decrease significantly. The interactive charts provide a visual representation of your cost savings, making it easier to understand the impact of your mortgage decisions.

Mortgage Calculator is specially designed for the US market and takes into account factors such as variable rates, tax, PMI, and ARM mortgages. It also offers quick calculators for instant answers on how much you can afford to borrow, monthly payments, the money-saving effect of extra payments, and the cost of moving house.

With the ability to store details of multiple mortgages and compare up to four mortgages side by side, you can make an informed choice by analyzing and visualizing mortgage costs. The app also supports backup and restore via Dropbox, passcode protection, and offers an elegant, simple, and powerful user interface.