Best Day Calculator Business Apps

214+ iOS apps curated and reviewed

4.7 avg rating
18 free apps
Updated May 2026

If you already know Calculator‰, this is the deeper bench. 214+ day calculator business apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.

Top Picks for Day Calculator Business

Calculator‰#1

Calculator‰ by Tim O's Studios, LLC

Default Calculator
Editor's Choice
🔧 Utilities
4.9😊(404K ratings)
FreeAds
Calculator‰ screenshot 1
Calculator‰ screenshot 2

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

What We Love

  • 👍 Easy to use
  • 👍 Large, clear buttons
  • 👍 Accurate calculations
  • 👍 Simple, no-frills design

Room to Improve

  • 🔍 Lack of advanced features
  • 💰 Ads can be intrusive
  • 🔒 Concerns about security/malware
Digits Tape Calculator#2

Digits Tape Calculator by Shift

The calculator for humans
Strong Contender
🔧 Utilities
4.8😊(1.1K ratings)
$1.99In-App Purchases
Digits Tape Calculator screenshot 1
Digits Tape Calculator screenshot 2
Digits Tape Calculator screenshot 3
Digits Tape Calculator screenshot 4
Digits Tape Calculator screenshot 5
Digits Tape Calculator screenshot 6

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.

What We Love

  • 🚀 Best tape calculator
  • 👍 Intuitive and user-friendly interface
  • 💡 Editable and commentable saved tapes
  • 🚀 Resizes well on iPad

Room to Improve

  • 🐛 Bug with iOS 26 where number pad doesn't return after adding comments
  • 🐛 Slow to load and unresponsive on some devices
  • 👎 Lack of iCloud sync between devices
Calculator for iPad!#3

Calculator for iPad! by 7th Gear

Basic & Scientific Calculator
Worth Considering
🔧 Utilities
4.7😊(60K ratings)
Free
Calculator for iPad! screenshot 1
Calculator for iPad! screenshot 2
Calculator for iPad! screenshot 3
Calculator for iPad! screenshot 4

This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.

What We Love

  • 📐 Versatile calculator with basic and scientific modes
  • 📝 Useful note-taking and calculation history features
  • 🎨 Customizable color schemes
  • 💻 Works well on both iPad and iPhone

Room to Improve

  • 💰 Ads can be intrusive in free version
  • 🔒 Lack of transparency around in-app purchases
  • 🔍 Difficulty finding and accessing premium features

More Day Calculator Business apps to explore

4
Calculator·
Calculator·
Calculator·
Big Basic Calculator
Free

This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.

Basic arithmetic operationsPercentage calculationsMultiple color schemes
🔧 Utilities
(33K)
free with in-app purchases
5
Calculator for iPad₊
Calculator for iPad₊
Calculator for iPad₊
Basic, Scientific, Plus Calc
Free

This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.

Basic & Scientific CalculatorAdvanced Scientific FunctionsLive Currency Converter
🔧 Utilities
(126K)
free with in-app purchases
6
Time Calculator - Work Hours
Time Calculator - Work Hours
Time Calculator - Work Hours
Date, Calendar & Salary Clock
Free

This comprehensive toolkit helps manage time, dates, and schedules with various calculators. Track work hours, plan shifts, convert time formats, and calculate differences between dates. Ideal for professionals, freelancers, and everyday users needing precise time management.

Work time trackingShift schedulingDate difference calculation
🔧 Utilities
(2.7K)
freemium
7
Calculator--
Calculator--
Calculator--
by Horizon Business, Inc.
Free

This is a straightforward calculator application designed for ease of use and clear readability. Users can personalize the app's appearance by choosing their preferred background and display themes.

Easy to use interfaceClear displayCustomizable background
🔧 Utilities
(910)
ad-supported
8
Color Calculator-smart&cute
Color Calculator-smart&cute
Color Calculator-smart&cute
Cute calculator app with theme
Free

This app offers a customizable and fast calculator experience with a wide variety of themes. It includes scientific and standard modes, real-time results, and calculation history. Personalize your math with over 60 cute and colorful themes, including animated options.

60+ free cute and colorful themesExclusive dynamic and special themesScientific & Standard calculator modes
🔧 Utilities
(15K)
freemium
9
Calculator₊
Calculator₊
Calculator₊
Basic, Scientific, Plus Calc
Free

This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.

Basic and scientific calculationsUnit and currency converterAI-powered math solver with photo recognition
🔧 Utilities
(1.7M)
free with in-app purchases
10
ClevCalc - Calculator
ClevCalc - Calculator
ClevCalc - Calculator
All-In-One Calculator
Free

This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.

Scientific calculatorUnit converterCurrency converter
📊 Productivity
(12K)
free with in-app purchases
11
Simple Calculator.
Simple Calculator.
Simple Calculator.
Basic Casio-style calculator
Free

A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.

Real-world logic, no forced order of operationsRunning total displayCost, sell, margin calculations
🔧 Utilities
(1.4K)
ad-supported
12
Calculator⁻
Calculator⁻
Calculator⁻
Best hand calculator
Free

A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.

Basic arithmetic operationsPercentage calculationsRecord and recall results
🔧 Utilities
(3.4K)
ad-supported
13
Calculator!
Calculator!
Calculator!
by 7th Gear
$0.99

This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.

Standard and scientific calculator modesCustomizable look (iPad only)Portrait and landscape orientation
🔧 Utilities
(4.2K)
free with in-app purchases
14
Calculator⁼
Calculator⁼
Calculator⁼
Fraction, Scientific Calc +
Free

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

Basic & Scientific CalculatorLive Currency ConverterHistory Tape
🔧 Utilities
(357K)
free with in-app purchases
15
Time Card Calculator-Timeclock
Time Card Calculator-Timeclock
Time Card Calculator-Timeclock
Calculate Paycheck Punch Hours
Free

Easily calculate your work hours and paychecks. This app allows you to log in and out times, automatically deduct lunch breaks, and calculate overtime pay with customizable rates. Manage weekly or bi-weekly pay periods and export your timesheets.

Log in/out timesAutomatic lunch deductionCustomizable overtime rates
📊 Productivity
(1.2K)
free
16
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.

Over 40 calculators and unit convertersStandard and scientific calculator functionsFinancial calculators (interest, loan, currency)
📊 Productivity
(4.8K)
free with in-app purchases
17
Calculator%.
Calculator%.
Calculator%.
Simple, big screen and buttons
Free

This app offers a straightforward calculator with a large display and oversized buttons for easy operation. It's designed for everyday tasks, enabling users to perform fundamental arithmetic like addition, subtraction, multiplication, and division with clarity and convenience.

Big display and buttonsEasy to useBasic calculations
🔧 Utilities
(3.9K)
ad-supported
18
(Not Boring) Calculator
(Not Boring) Calculator
(Not Boring) Calculator
Basic, Readable & Not Boring
Free

This app reimagines the everyday calculator with a fun, game-like interface and animations. It displays your full equation as you type, making it easy to spot and correct mistakes. Customizable skins and seasonal updates keep the experience fresh.

Shows full equation as you typeEditable equation for mistake correction3D interface with game-inspired animations
🔧 Utilities
(2.3K)
free with in-app purchases
19
The Date Calculator PRO
The Date Calculator PRO
The Date Calculator PRO
Calculate days between dates
Free

Easily calculate the duration between two dates, with or without accounting for the time of day. You can also add or subtract various time units from a specific date. The results are automatically converted into multiple units for your convenience.

Calculate duration between two datesInclude time of day in calculationsAdd/subtract years, months, weeks, days
🔧 Utilities
(2.5K)
free with in-app purchases
20
PowerOne calculator
PowerOne calculator
PowerOne calculator
Finance, scientific, and more
Free

This app offers a powerful calculator with hundreds of pre-built templates for finance, engineering, and more. Users can also create custom calculations for specific needs, ensuring accuracy and speed for repetitive tasks. Access your calculations across devices, online or offline.

Hundreds of pre-built calculation templatesCreate custom calculation templatesStandard and RPN calculator modes
🔧 Utilities
(748)
free with in-app purchases