Karl's Mortgage Calculator

🇺🇸 United States
Karl Jeacle  | 
43
ASO score
Text
36/100
Reviews
50/100
Graphic
60/100
Other
0/100
rating
App Rating
4.5
rating
Votes
204
rating
App Age
10y
rating
Last Update
May 30, 2023

Compare with Category Top Apps

Metrics
Current App
Category Top Average
Difference
Rating
4.43
4.61
-4%
Number of Ratings (Voted)
203
867.8K
-100%
App Age
10y 0m
8y 4m
+20%
In-app Purchases Price
$0
$56
Update Frequency
932d
86d
+984%
Title Length
26
25
+4%
Subtitle Length
0
27
Description Length
1 198
2 735
-56%
Number of Screenshots
510
1240
-59 %
Size
20MB
199MB
-90 %

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Ranking Keywords in United States

Keywords App Rank
Illustration
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Text ASO

Title (
Characters: 26 of 30
)
Karl's Mortgage Calculator
Subtitle (
Characters: 0 of 30
)
Description (
Characters: 1198 of 4000
)
Calculate mortgage payments given principal, interest and term. Reverse calculate any one variable given the other three. Enter a down payment amount or percentage and let the calculator show how large a mortgage you require. See how the monthly payment changes when you factor in additional monthly or annual loan costs such as PMI, HOA, taxes and insurance. The calculator supports Fixed and Adjustable Rate Mortgages (ARM) loans with up to five changes in interest rates. Interest-only mortgages loans are also supported. You can pay off your mortgage early with extra payments. Add one-off, monthly and annual extra payments. Choose up to ten additional extra payment amounts and payment periods and the calculator will show how much money you can save on the loan. Choose from weekly to annual loan payments and adjust the compounding period from daily through annual periods. The calculator supports Canadian mortgages along with UK annual rest mortgages. Multiple rounding options on loan calculations are also available. Choose between no rounding, round half up, half down, to even, to ceiling and to floor. The calculator also supports the input and display of multiple currencies.}
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Visual ASO

Screenshots

Rating & Reviews

Reviews Overview
🧐 Coming Soon…
Rating
4.5
204 voters

Some Latest Reviews

Over it1908
10 Nov, 2025
5
I have been using this calculator for about 4 years and it’s been spot on. The estimate has been accurate. I recommend it to all my clients.
NelsyCarolina
09 Nov, 2025
5
It has become a great tool for me in my daily work
Johnisalreadytaken
17 Oct, 2025
1
Unable to lock the values and it changes my previous inputs automatically when trying to input the numbers.
Sirius Stealth
27 Mar, 2025
5
Absolutely love this app such flexibility, and reporting. I immediately bought the paid version of the app instead.
Jatinnow
25 Feb, 2025
5
It is simple. All parameters are editable. You can get monthly breakdown of all amounts for the the entire term, year by year, month by month. Full amortisation calculations present. The interface is intuitive and very simple to use. Well done.
Addylef88
13 Jul, 2024
5
This app has been a total game changer! It enabled us to assess our ability and to make a plan to pay off our mortgage sooner, which we did!! We cannot thank you enough Karl for developing this app, everyone with a mortgage should get it!
Psposted
30 Apr, 2024
2
I used to love this app but now it doesn’t seem to calculate the extra payment no matter how I input it
Iowa5770
28 Oct, 2023
1
App was working fine at first but now I can’t even calculate a normal payment. It keeps defaulting to 100 years and it says to change to payment radio button. It’s getting annoying so I stopped using. Please fix
KingJanks13
24 May, 2023
5
First, thank you to the developer of this calculator. Everyone has been coming to me for their mortgage advice because of this simple tool! It’s still getting 5 stars however, now maybe with the newer iPhones, I can’t see the entire table to the right. It seems to be cutoff. I can still get the first few numbers ie: “400,” instead of “400,000.00”.

Other

Additional Information
Rating:
4.46
Voted: 204
App Store Link:
Website:
Email: -
Privacy Policy:
Categories: Business, Finance
Size: 19MB
App Age: 10 years
Release Date: Dec 04, 2015
Last Update: May 30, 2023
Version: 2.5.2
Version history
2.5.2
May 30, 2023
2.5.2 - 50 extra payments (was 30) - 50 interest rates (was 9) - Fixed payments (negative amortization) - Preserve term reduction on rate change setting - Stacked amortization graph setting - Zero interest rate is now valid - Email subject is loan name - Email breaks out monthly expenses - 100B principal, 10B repay - Remove ads menu option - Fix only five interest rates saved - Updated insurance rates - Remove analytics tracking
4.2
Mar 24, 2021
Fixed all bugs and minor issues.
Version history