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Karl icon

Karl

4.0.1
5 2 reviews
9.1 k downloads
security security

Calculate how much your mortgage is with many variables

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Uptodown Content Team icon
Reviewed by
Uptodown Content Team
Review written by Uptodown's in-house Editorial Team using the insights provided by DrCalculator.

The application Karl serves as an advanced mortgage calculator designed to simplify the complexities of home financing for prospective homeowners. It enables precise calculation of mortgage repayments by entering the loan principal, interest rate, and term duration. An exceptional feature is its capability to reverse calculate unknown variables when three known variables are provided, a great tool for determining the optimal mortgage plan for one's financial situation.

Importantly, the app allows the input of down payments as either a fixed amount or a percentage to ascertain the total mortgage needed. Understanding the influence of additional costs such as private mortgage insurance (PMI), homeowners association (HOA) fees, property taxes, and insurance on monthly payments is straightforward—ensuring users are well-informed about potential outlays.

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It is versatile, supporting both Fixed and Adjustable Rate Mortgages (ARM), inclusive of loans that might encounter interest rate changes up to five times, along with interest-only mortgages. For those interested in paying off their mortgage early, it empowers the user to account for one-time, monthly, or annual extra payments. By specifying up to ten additional payment amounts and periods, the game will calculate the potential savings over the duration of the loan.

User customizability extends to payment frequency options ranging from weekly to annual, as well as refining the compounding period from daily to annual intervals. This makes the tool adaptable to various global mortgage standards, such as those in Canada and the UK's annual rest mortgages.

Additional customization comes through multiple rounding options for loan calculations, providing choices such as no rounding, rounding half up, half down, rounding to even, to ceiling, and to floor. And for international users, the calculator offers the option to input and display values in multiple currencies.

Please be aware that internet access is a requirement for the app, primarily for advertisement display and analytical purposes. With Karl, navigating the nuances of mortgage planning with precision becomes simpler, serving as a valuable asset for individuals aiming to manage their home financing effectively.

Requirements (Latest version)

  • Android 6.0 or higher required

Information about Karl 4.0.1

Basic information

Developer DrCalculator
License Free
Category Finance
Rating +3
Languages English
6 more

Security and privacy

Required permissions
See 9 permissions
Advertising Not specified
Certificate signature e016b2fa31c34c62b8a62c909188488e
See security and antivirus report
Why is this app published on Uptodown? (More information)

Download info

Downloads 9,073
Date Jan 13, 2026
File type APK
Size 2.59 MB
SHA256 406bb006cda6ba848c0f7927598ffa4f9b395c3dda50905ca2a4639932d250ef

Technical details

Package Name com.drcalculator.android.mortgage
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Older versions

See more
apk 4.0.0 Android + 6.0 Jan 5, 2026
apk 3.12.1 Android + 6.0 Mar 3, 2025
apk 3.12 Android + 5.0 Feb 27, 2025
apk 3.11 Android + 4.4 Jan 12, 2024
apk 3.10.5 Android + 4.4 Jun 4, 2023
apk 3.10.4 Android + 4.4 Apr 12, 2023

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