Karl's Mortgage Calculator is a finance app developed by Dr Karl Jeacle.
Download Statistics
Karl's Mortgage Calculator has been downloaded 2.3 million times. In the last 30 days, the app was downloaded 0 times.
User Ratings
Karl's Mortgage Calculator is rated 4.43 out of 5 stars. The rating is based on 6.7 thousand ratings.
App Information
Karl's Mortgage Calculator is freely available from Google Play. The APK size is 3.61 MB. The latest APK version available is 4.1. The last update was on September 6, 2026.
Technical Requirements
Karl's Mortgage Calculator requires Android 7.0+ or higher. The app has a content rating of Everyone. The APK has been available on Google Play since before 2010.
Description by Dr Karl Jeacle(from Google Play)
Calculate mortgage payments given principal, interest and term. Reverse calculate any one variable given the other three.
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Comments on Karl's Mortgage Calculator for Android
★★★★★Kyle Wiebe· Jul 30, 2023
I've been using this app for 7 years. Throughout, it's kept up well with different interest rates and many lump sum payments. Thanks, Karl, for helping keep me accurately informed with how quickly I will pay off my mortgage!
★★★★★Kerry Teresi· Feb 26, 2023
Works great, helps to visualize extra mortgage payments. Works better that any other online calculator. Saves info. For future viewing. I paid my mortgage off 8 years earlier bc of the help I got from this app.
★★★★★Earl J· Apr 4, 2025
Simply superb! Nothing more to ask for! .... except there should be input for making semi-monthly extra payments instead of only monthly. How would that affect the interest saved?
★☆☆☆☆lorin gray· Jun 11, 2026
Beware!! Calculates prepayment and extra payments incorrectly. Shows the loan paid off to early and additional payments are calculated to high.
★★☆☆☆Andrew “CharlieG” Cohen· Nov 9, 2025
The calculator is way to complicate d for such simple information to be broken down. I have used Every dollar's mortgage calculator and it was so simple and straightforward. I don't know understand what this calculator is attempting to do, but it definitely isn't properly calculating anything and the inputs make no sense. I simply wanted to know with my original balance, my current remaining balance & interest rate, how long before it's paid off in full. It's just not doing the job right.
★★☆☆☆J Aponte· Aug 12, 2026
Useful but the ad content is questionable, which subtracts from trustworthiness
Google Play Rankings for Karl's Mortgage Calculator
This app is not ranked
Technologies used by Karl's Mortgage Calculator
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