Best Karl Business Day Calculator Apps

225+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated June 2026

Looking for free karl business day calculator apps? 18 of our 225+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Karl Business Day Calculator

Loan Calculator‰#2

Loan Calculator‰ by Tim O's Studios, LLC

Simple Loan Calculator
Strong Contender
💰 Finance
4.9😊(96K ratings)
FreeAds
Loan Calculator‰ screenshot 1

Easily calculate loan or mortgage payments. Simply input the loan amount, repayment term, and interest rate to get your estimated monthly payment.

What We Love

  • 👍 Simple and easy to use
  • 🚀 Straightforward and intuitive
  • 💡 Accurate loan repayment calculations
  • 🚀 Instant results

Room to Improve

  • 🐛 Incorrect interest calculations
  • 🔍 Limited functionality
  • 💸 Excessive advertisements
RECalc Mortgage Calculator#3

RECalc Mortgage Calculator by 3magic

Mortgage/loan calculator
Worth Considering
💰 Finance
4.7😊(2.6K ratings)
FreeAds
RECalc Mortgage Calculator screenshot 1
RECalc Mortgage Calculator screenshot 2
RECalc Mortgage Calculator screenshot 3
RECalc Mortgage Calculator screenshot 4
RECalc Mortgage Calculator screenshot 5

Calculate mortgage payments, loan amounts, interest rates, and terms. This app also functions as a standard calculator and supports semi-annual compounding. View loan summaries and amortization tables, and email or save your calculations.

What We Love

  • 👍 Easy to use
  • 🚀 Powerful and flexible
  • 💡 Includes amortization table
  • 🚀 Quick calculations

Room to Improve

  • 🐛 Unintuitive user interface
  • 🐛 Lack of instructions or tutorials
  • 🐛 Calculation issues for some users

More Karl Business Day Calculator apps to explore

4
Digits Tape Calculator
Digits Tape Calculator
Digits Tape Calculator
The calculator for humans
$1.99

This app offers a calculator with an editable, line-by-line tape history, combining spreadsheet-like functionality with calculator simplicity. Easily correct mistakes, add comments, and share or print your calculations.

Editable line-by-line tape historyCorrect and insert entriesAdd labels and comments
🔧 Utilities
(1.1K)
free with in-app purchases
5
Loan,Mortgage ,Tip Calculator
Loan,Mortgage ,Tip Calculator
Loan,Mortgage ,Tip Calculator
Discount, tax, and more
Free

This app offers a suite of six essential calculators for everyday financial tasks. It includes a powerful discount and sales tax calculator, along with five additional tools to simplify common calculations.

Discount calculatorSales tax calculatorLoan calculator
📊 Productivity
(502)
free with in-app purchases
6
Mortgage Pal - Loan Calculator
Mortgage Pal - Loan Calculator
Mortgage Pal - Loan Calculator
Payment compound interest rate
Free

This comprehensive mortgage toolkit helps users make informed home buying decisions. It offers multiple calculators for payments, affordability, refinancing, and closing costs, along with tools to visualize rate trends and compare renting versus buying.

Mortgage Payment CalculatorMortgage Affordability CalculatorMortgage Refinance Calculator
💰 Finance
(3.4K)
free
7
10bii Financial Calculator
10bii Financial Calculator
10bii Financial Calculator
Easy Financial Calculator
$7.99

This app offers a comprehensive financial calculator with over 105 functions for business, statistics, and general math. It simplifies complex calculations like loan payments, time value of money, and investment analysis with an intuitive interface and visual tools. Easy modes are available for users new to financial calculations.

Over 105 financial, business, and math functionsTime Value of Money (TVM) calculationsUneven Cashflow worksheets
💰 Finance
(663)
free with in-app purchases
8
Karl's Mortgage Calculator
Karl's Mortgage Calculator
Karl's Mortgage Calculator
by Karl Jeacle
Free

This app helps you calculate mortgage payments with various loan types, including fixed, adjustable, and interest-only. It allows for early payoff calculations with extra payments and supports multiple currencies and international mortgage types.

Calculate mortgage paymentsReverse mortgage calculationFactor in additional loan costs
💰 Finance
(109)
ad-supported
9
Loan Calculator - Loan2Me
Loan Calculator - Loan2Me
Loan Calculator - Loan2Me
Quick and Easy Loan Calculator
Free

This app helps you quickly calculate loan payments, affordability, and potential savings. It offers detailed amortization schedules and allows for scenario planning by adjusting loan parameters. Advanced features include expense breakdowns for mortgages and vehicle loans, plus data synchronization and custom report generation.

Calculate loan paymentsDetermine loan affordabilityAmortization schedule
💰 Finance
(8.2K)
freemium
10
BA Financial Calculator
BA Financial Calculator
BA Financial Calculator
BAII Plus Emulator
Free

Emulates the TI BAII Plus financial calculator, offering identical functionality with a clean and user-friendly interface. It's designed for finance professionals and students preparing for exams like CFA, FRM, and CPA.

TI BAII Plus emulatorIdentical functionalityUser-friendly interface
💰 Finance
(2.9K)
ad-supported
11
Loan Calculator & Tax Savings
Loan Calculator & Tax Savings
Loan Calculator & Tax Savings
3-in-1 Loan Payment Calculator
Free

This app offers advanced loan analysis, including mortgage calculations and tax savings impact. It provides detailed amortization tables and helps users understand loan terms for informed financial decisions.

Quick loan payment calculationDetailed amortization tablesEstimated tax savings impact
💰 Finance
(97)
free
12
Mortgage Calculator 2
Mortgage Calculator 2
Mortgage Calculator 2
Loan and Mortgage Calculator
Free

This finance app offers real-time mortgage calculations as you adjust principal, interest, and term. Visualize your entire loan term with detailed summaries and bar charts. It features an intuitive interface, quick change buttons, multiple themes, and multilingual support.

Real-time updates with every changeIntuitive user interfaceQuick change buttons
💰 Finance
(87)
free with in-app purchases
13
EMI Loan & Mortgage Calculator
EMI Loan & Mortgage Calculator
EMI Loan & Mortgage Calculator
Auto Loan & EMI Calculator
Free

This app simplifies financial calculations for various loan types, including mortgages and auto loans. It offers detailed results, comparison tools, and essential financial calculators for APR, ROI, and savings. Easily export your calculations for better financial management.

Comprehensive loan calculationsSupport for various loan typesDetailed loan results with charts
💰 Finance
(138)
ad-supported
14
Rocket Mortgage
Rocket Mortgage
Rocket Mortgage
Mortgages made simple
Free

Manage your entire home loan journey from application to payment. This app offers tools to apply for mortgages, track progress, view loan details, make payments, and monitor home value. Get expert support and insights for a stress-free homeownership experience.

Apply for home loansManage mortgage paymentsTrack application progress
💰 Finance
(170K)
free
15
EZ Financial Calculators
EZ Financial Calculators
EZ Financial Calculators
by Bishinew Incorporated
Free

Access a comprehensive suite of financial tools for personal and business use. Calculate loans, mortgages, investments, retirement savings, and more with ease. This app offers a wide range of specialized calculators for detailed financial analysis.

Finance and Investment CalculatorsLoan and Mortgage CalculatorsRetirement Planning Tools
💰 Finance
(46)
ad-supported
16
Mortgage Calculator Plus
Mortgage Calculator Plus
Mortgage Calculator Plus
by AppRebel, Inc.
Free

Easily calculate mortgage payments with detailed amortization schedules. This app offers advanced analytics, including interest breakdowns and the ability to save and share calculations. It's designed for anyone looking to understand or plan their mortgage finances.

Intuitive mortgage calculationDetailed amortization schedulesEnhanced mortgage analytics
💰 Finance
(6)
free with in-app purchases
17
Construction Master Pro Calc
Construction Master Pro Calc
Construction Master Pro Calc
Feet Inch Fraction Calculator
Free

This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.

Dimensional math and conversionsRight angle and rafter calculationsArea and volume solutions
🔧 Utilities
(39K)
free with in-app purchases
18
Easy Mortgages
Easy Mortgages
Easy Mortgages
Mortgage Calculator
Free

Calculate mortgage payments, explore the impact of extra payments, and generate detailed amortization schedules. Save and compare multiple loan scenarios with this user-friendly tool.

Payment calculationsExtra payment simulationAmortization schedule
💰 Finance
(0)
free
19
Financial Calculator: Percent
Financial Calculator: Percent
Financial Calculator: Percent
Tax Percentage, Profit Margin
Free

This app offers a comprehensive suite of over 40 financial and utility calculators. Easily handle complex calculations like investment analysis, tax percentages, profit margins, and everyday percentage needs with a clean and intuitive interface.

Over 40 built-in calculatorsFinancial calculators (ROI, IRR, NPV)Tax and profit margin calculations
💰 Finance
(14K)
subscription
20
Fairway Now
Fairway Now
Fairway Now
by Fairway Independent Mortgage Corporation
Free

Apply for a mortgage in minutes, track your loan progress with real-time updates, and securely scan documents. Connect with loan officers and realtors, and explore home listings directly within the app.

Apply for loan in under 10 minutesReal-time loan progress trackingOne-click call/text to loan officers
💰 Finance
(3K)
free