Karl's Mortgage Calculator

Name: Karl's Mortgage Calculator
Rating: 4.4 (122 reviews)
Author: Karl Jeacle

By: Karl Jeacle App

Finance

Overview

Version:

2.7.1

Last updated: 2026-07-22

Ranking

#127,489 ▲ 1,911

Overall

Features & Capabilities

Karl's Mortgage Calculator is a versatile Chrome extension for mortgage planning. It calculates monthly payments from principal, interest, and loan term, and can reverse any one variable if you know the other three. You can also enter a down payment (amount or percent) to see the required loan amount.

The tool supports advanced features including extra payments (one-time, monthly, yearly), PMI/HOA/taxes/insurance inputs, Fixed and Adjustable Rate Mortgages (ARM) with up to five rate changes, and flexible payment frequencies (weekly to yearly) with configurable compounding. It also offers multiple rounding options and can handle multiple currencies, with mortgage support for Canadian and UK loans.

User Growth & Download Statistics

App Programming Data Education

By:

Karl Jeacle

Rating:

4.40

(122)

Version:

2.7.1 Last updated: 2026-07-22

Version code:

888643288

Creation date:

2015-12-04

Compatible devices:

Size:

18.20MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-08-03

Compare stats and ranking:

Ranking

# 127,489 ▲ 1,911

Other platforms

Karl's Mortgage Calculator (v4.0.0)

2,256,210 4.42

(7,079)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Karl Jeacle

Apple Apps Store

https://apps.apple.com/us/app/karls-mortgage-calculator/id1025852681

User Reviews

Karl's Mortgage Calculator is valued for accuracy, ease of use, and strong scenario modeling with extra payments and sharing options. However, recurring complaints focus on buggy input behavior, inconsistent handling of extra payments, and occasional stability problems that hinder steady use.

Pros

Accurate estimates and reliable results over years
Simple, easy-to-use interface with ample options
Strong scenario modelling including extra payments and taxes
Saves scenarios automatically and lets you share tidy summaries via email

Cons

Input fields sometimes misbehave: values change unexpectedly and inputs can't be locked
Extra payments feature is not always reliable and users report limited number of slots for extra payments
Occasional stability issues: app can hang, fail to load, or stop accepting input after reinstall

Recent reviews

I absolutely LOVE this app! I’ve used it for two house mortgages running “what-if” scenarios trying to target reasonable early payoff dates and understanding how much money I save in interest I don’t have to pay the bank. The app is easy to use and easy to pivot your payoff strategy when financial changes happen and you have to put less or can put more into the house. Seeing the payoff graphs, tables, and summary views are so nice. I use all the features on this app. The app is simple but powerful. Very user friendly but not underpowered. Great job! This is probably the first review I’ve ever posted about a mobile app because I just loved it so much.