# Karl's Mortgage Calculator Pro

> Advanced mortgage calculator for fixed, ARM, and interest-only loans with extra payment analysis. (iPhone/iPad app by Karl Jeacle.)

- Source: https://appshunter.io/ios/app/karls-mortgage-calculator-pro/id1299095698 (this page in markdown: same URL + `.md`)
- Developer: [Karl Jeacle](https://appshunter.io/developer/1025852680)
- Category: Finance, Business
- Price: $1.99
- Rating: 4.80/5 from 10 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 14 MB
- Languages: American English
- Released: 2017-11-20
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/karls-mortgage-calculator-pro/id1299095698/reviews.md

## What is Karl's Mortgage Calculator Pro?

This is the Pro version of Karl's Mortgage Calculator. The only change from the free version is that the adverts have been removed.

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 six 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.

## Key features

- Calculate mortgage payments
- Reverse mortgage calculation
- Factor in down payments
- Include additional loan costs
- Support for ARM and interest-only loans
- Analyze early payoff with extra payments
- Support for multiple currencies

## Chart rankings

- #44 in Top Paid · Finance (US App Store)

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/karls-mortgage-calculator-pro/id1299095698/reviews.md

### 5/5 — Buy this calculator!

*2026-03-25*

If you want a detailed and easy to use calculator you can use to estimate future principal payments and payoff scenarios with both incremental monthly progress, monthly progress and overall totals - this is what you are looking for.

### 5/5 — Great app!

*2023-05-30*

Been using for years, just bought the pro version to support the developer. Would love to see iCloud backup for saved loans.

### 3/5 — Great calculator- needs sharing options

*2022-06-28*

I love this calculator but don’t use Apple Mail, which seems to be the only way to export loan data, tables or graphs. Very disappointing. Please add export functionality.

### 5/5 — Best Mortgage Calculator

*2021-02-22*

This is by far the best mortgage calculator. I use this on iPhone and iPad and pay for the pro version because I want to support the developer. This is someone who created a very functional and easy to use app. 1 suggestion: Please, please, Please let the iPad version work in landscape so I can use it when my iPad is docked on the keyboard.

### 5/5 — The Best on Android, the best on iPhone!

*2020-06-30*

Very useful! Love it! Bought the Pro to support the developer! Thanks!

### 1/5 — Why?

*2020-02-08, version 2.2*

Why cant input more thn 500.000.000??? Please fix it.

### 1/5 — Doesnt work

*2019-11-10, version 2.2*

Why cant i put any info i want?!!

## Frequently asked questions about Karl's Mortgage Calculator Pro

### What is Karl's Mortgage Calculator Pro?

Karl's Mortgage Calculator Pro is a paid application designed for detailed mortgage analysis. It allows users to calculate mortgage payments, factor in various costs, and analyze the impact of extra payments on loan payoff.

### What types of mortgage loans does Karl's Mortgage Calculator Pro support?

The calculator supports Fixed Rate Mortgages, Adjustable Rate Mortgages (ARM) with up to five interest rate changes, and interest-only mortgages. It also supports Canadian mortgages and UK annual rest mortgages.

### Can I use Karl's Mortgage Calculator Pro to see how extra payments affect my mortgage?

Yes, you can add one-off, monthly, and annual extra payments to see how much money you can save on your loan. The app supports up to six additional extra payment amounts and periods.

### Does Karl's Mortgage Calculator Pro support different currencies?

Yes, the calculator supports the input and display of multiple currencies, making it versatile for users dealing with different financial markets.

### How does Karl's Mortgage Calculator Pro handle rounding in calculations?

The app offers multiple rounding options, including no rounding, round half up, half down, to even, to ceiling, and to floor, providing flexibility in how loan calculations are presented.

### What devices is Karl's Mortgage Calculator Pro available on?

Karl's Mortgage Calculator Pro is available on iPhone, iPad, and iPod. It is rated for ages 4+.

### How often is Karl's Mortgage Calculator Pro updated?

The latest version, 2.5.2, was released on May 28, 2023. Updates typically occur to improve functionality and compatibility.

### What is the price of Karl's Mortgage Calculator Pro?

Karl's Mortgage Calculator Pro is a paid app priced at $1.99. It does not contain advertisements or in-app purchases.

## Version history (last 3 releases)

### 2.7.1 — 2026-07-24

2.7.1
- Darker color scheme
- Indian currency
- Bug fixes

### 2.5.2 — 2023-05-28

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
- Fix only five interest rates saved
- Updated insurance rates

### 2.2 — 2017-11-20

This app has been updated by Apple to display the Apple Watch app icon.

## Apps similar to Karl's Mortgage Calculator Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Mortgage Calculator- Home Loan](https://appshunter.io/ios/app/mortgage-calculator-home-loan/id1155749575) | 4.6 (412) | Free | Finance |
| [Mortgage Calculator +](https://appshunter.io/ios/app/mortgage-calculator-plus/id974051921) | 4.6 (232) | $2.99 | Finance |
| [Loan Calculator - Debt Planner](https://appshunter.io/ios/app/loan-calculator-debt-planner/id1059124601) | 4.6 (22,434) | Free | Finance |
| [Karl's Mortgage Calculator](https://appshunter.io/ios/app/karls-mortgage-calculator/id1025852681) | 4.4 (124) | Free | Finance |
| [Rocket Mortgage](https://appshunter.io/ios/app/rocket-mortgage/id431156417) | 4.9 (178,822) | Free | Finance |
| [RECalc Mortgage Calculator](https://appshunter.io/ios/app/recalc-mortgage-calculator/id382009228) | 4.7 (2,786) | Free | Finance |

## More apps by Karl Jeacle

- [Karl's Mortgage Calculator](https://appshunter.io/ios/app/karls-mortgage-calculator/id1025852681)

All apps by Karl Jeacle: https://appshunter.io/developer/1025852680

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*