Published by Dr Karl Jeacle on Jan 22, 2024

Report an issue with Karl's Mortgage Calculator Pro.
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Why should I report an Issue with Karl's Mortgage Calculator Pro?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of Dr Karl Jeacle to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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About Karl's Mortgage Calculator Pro

1. Choose up to six additional extra payment amounts and payment periods and the calculator will show how much money you can save on the loan.

2. The calculator supports Fixed and Adjustable Rate Mortgages (ARM) loans with up to five changes in interest rates.

3. See how the monthly payment changes when you factor in additional monthly or annual loan costs such as PMI, HOA, taxes and insurance.

4. Choose from weekly to annual loan payments and adjust the compounding period from daily through annual periods.

5. Enter a down payment amount or percentage and let the calculator show how large a mortgage you require.

6. The calculator supports Canadian mortgages along with UK annual rest mortgages.

7. Calculate mortgage payments given principal, interest and term.

8. Add one-off, monthly and annual extra payments.

9. This is the Pro version of Karl's Mortgage Calculator.

10. You can pay off your mortgage early with extra payments.

11. Multiple rounding options on loan calculations are also available.

Karl's Mortgage Calculator Pro Customer Insights

1. This app can do everything I want - Interest totals over the course of the loan, how my loan is affected if I make extra payments, and how much my monthly payment will be with escrow are just a few.

2. Extra payments especially and it's an app which is very convenient.Just bought the Pro version to support the developer as the free version is so damn useful.

3. Unfortunately, the total payment for both account are the same weather you put extra money or not.Great app.

4. For example, I made a $25000 extra payment in January then change the interst rate for April.

5. I made two loan account, one with extra payment and one without.

6. Especially as the number is tied to all the payment options.I have used the free version of this calculator for many years.

7. It took me a while to properly understand the different inputs but now that I have it's been invaluable in calculating different options for payments against a mortgage.

8. I bought it primarily to see the impact of extra payments to pay down mortgage early.

9. One simple request - please add a month number since mortgage start to the Payment and Period tables.

10. The total payment for May should be lower then the account with no extra payment.

11. Saved me £££ thanks to the developers.Been using the free version for a while.

Steps to Troubleshoot & Fix Karl's Mortgage Calculator Pro Issues

1. Fix Karl's Mortgage Calculator Pro Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Karl's Mortgage Calculator Pro: Restarting the app will resolve most errors.
  2. Update the Karl's Mortgage Calculator Pro App. Here is how:
    1. On Android goto PlayStore » Search for "Karl's Mortgage Calculator Pro" » Open Karl's Mortgage Calculator Pro » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Karl's Mortgage Calculator Pro » click "UPDATE".
  3. Clear Karl's Mortgage Calculator Pro app cache: Clearing cached data will force your app to retrieve the latest data directly from Karl's Mortgage Calculator Pro servers.
    1. On Android, goto Settings » Apps » Select "Karl's Mortgage Calculator Pro" » click Storage » click "Clear Cache".
  4. Check Karl's Mortgage Calculator Pro app permissions. If any of these permissions required to use your device's features are disenabled, Karl's Mortgage Calculator Pro might not work.
  5. Uninstall and reinstall Karl's Mortgage Calculator Pro. If nothing else has worked, completely uninstall Karl's Mortgage Calculator Pro then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Karl's Mortgage Calculator Pro not working


2. Fix Karl's Mortgage Calculator Pro Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Karl's Mortgage Calculator Pro be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Karl's Mortgage Calculator Pro not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Karl's Mortgage Calculator Pro may not be able to connect to the Internet when running in the background.

Reported Issues