Best Bigint Calculator Apps

248+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated August 2026

Every iPhone needs a few good bigint calculator apps. We benchmark 248+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Bigint Calculator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1BigInt CalculatorBigInt CalculatorFree was $0.994.3★ (3)NoNoAug 2026
2Calculator‰Calculator‰Free4.9★ (409K)YesNoAug 2026
3Calculator for iPad!Calculator for iPad!Free4.7★ (61K)NoNoAug 2026
4Calculator #Calculator #Free4.6★ (36K)YesYesAug 2026
5CalculatorCalculatorFree4.5★ (146K)YesYesAug 2026
6Calculator·Calculator·Free4.9★ (34K)YesYesAug 2026
7Calculator⁼Calculator⁼Free4.6★ (358K)YesYesAug 2026
8Calculator for iPad₊Calculator for iPad₊Free4.5★ (126K)YesYesAug 2026

Top Picks for Bigint Calculator

BigInt Calculator#1

BigInt Calculator by Viktor Pobedria

Arbitrary-precision math
Editor's Choice
🔧 Utilities
4.3(3 ratings)
Free
BigInt Calculator screenshot 1
BigInt Calculator screenshot 2
BigInt Calculator screenshot 3
BigInt Calculator screenshot 4

This app offers a fast, multi-threaded calculator with a spreadsheet-like interface for easy editing and instant updates. It handles large numbers and complex expressions with arbitrary-precision arithmetic, making it suitable for various real-world calculations.

Calculator‰#2

Calculator‰ by Tim O's Studios, LLC

Default Calculator
Strong Contender
🔧 Utilities
4.9😊(409K 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
Calculator for iPad!#3

Calculator for iPad! by 7th Gear

Basic & Scientific Calculator
Worth Considering
🔧 Utilities
4.7😊(61K 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 Bigint Calculator apps to explore

4
Calculator #
Calculator #
Calculator #
Scientific Calculator
Free

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

Math Photos SolverHandwriting RecognitionAI Math Problem Solver
🔧 Utilities
(36K)
free with in-app purchases
5
Calculator
Calculator
Calculator
by The App Tower Inc.
Free

This utility app offers a straightforward calculation experience with a vast selection of over 80 customizable themes. Personalize your calculator's appearance to suit your style while performing everyday math tasks.

Basic calculationsOver 80 themesTheme customization
🔧 Utilities
(146K)
free with in-app purchases
6
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
(34K)
free with in-app purchases
7
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
(358K)
free with in-app purchases
8
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
9
Calculatir - Calculator
Calculatir - Calculator
Calculatir - Calculator
Basic, Scientific, Plus Calc
Free
🔧 Utilities
(0)
10
XCalc.io Calculator + History
XCalc.io Calculator + History
XCalc.io Calculator + History
Units, Currency & Scanner
Free
🔧 Utilities
(0)
11
Calculator ∞
Calculator ∞
Calculator ∞
The Best Scientific Calculator
$5.99

This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.

Step-by-step solution hintsMath Photos SolverHandwriting Recognition
📚 Education
(6.3K)
free with in-app purchases
12
Calculator +
Calculator +
Calculator +
Graphing, Percentage, Triangle
Free

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

Free basic and scientific calculatorIntuitive interface with equation and result displayFraction and percent support
🔧 Utilities
(10K)
free with in-app purchases
13
Calculator-Math Toolbox
Calculator-Math Toolbox
Calculator-Math Toolbox
Scientific,Currency,Fractions
Free

This app offers both basic and advanced scientific calculations with a user-friendly interface. It allows for real-time editing of calculations, history management, and theme customization.

Basic and scientific calculationsTrigonometric and inverse trigonometric functionsMathematical functions (abs, ceil, floor, round)
🔧 Utilities
(342)
free with in-app purchases
14
Calculator
Calculator
Calculator
by Apple
Free

This app offers both basic and scientific calculators for quick solutions to mathematical expressions. It also features a "Math Notes" function that allows users to type or write out equations and see them solved inline, with support for variables and graphing.

Basic and scientific calculatorsType or write math expressionsInline equation solving
🔧 Utilities
(8.9K)
free
15
Grid Calculator.
Grid Calculator.
Grid Calculator.
Basic, Scientific, Plus Calc
Free
📊 Productivity
(0)
16
Calculator⊕
Calculator⊕
Calculator⊕
Basic, Scientific, Fraction
Free

This app offers a comprehensive suite of calculating tools, including basic, scientific, and fraction solvers. It features an enhanced history log for tracking and sharing past computations, along with customizable options for a personalized user experience. Enjoy a clean interface and reliable precision for all your mathematical needs.

Basic, Complex, Scientific, and Fraction modesEnhanced calculation historyShare and copy results
🔧 Utilities
(9)
free with in-app purchases
17
Fraction Calculator-Decimal RA
Fraction Calculator-Decimal RA
Fraction Calculator-Decimal RA
Fraction Calculator & Tutor
Free

This tool performs all basic fraction operations, converts to decimals, and compares fractions. It offers a practice mode with a "wrong answer book" for targeted learning and is available in multiple languages.

Basic fraction operationsDecimal conversionFraction comparison
🔧 Utilities
(13)
ad-supported
18
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
(4.2K)
ad-supported
19
Unlimited Calculator Pro
Unlimited Calculator Pro
Unlimited Calculator Pro
by fabrizio chimienti
Free

This app provides a powerful and accurate calculator capable of handling extremely large numbers and complex equations without errors. It features a clean interface and lightning-fast performance for students, professionals, and math enthusiasts.

Boundless calculations with large numbersPinpoint scientific precisionClean and intuitive interface
🔧 Utilities
(3)
ad-supported
20
Calculator: Scientific+Tax
Calculator: Scientific+Tax
Calculator: Scientific+Tax
Finance, Unit, Currency, Graph
Free
🔧 Utilities
(0)

FAQ about Bigint Calculator

What are the best bigint calculator apps for iPhone?
BigInt Calculator tops our bigint calculator apps ranking as of August 2026, with a 4.3-star average from 3 App Store ratings, and it's free to download.
Yes — 19 of the top bigint calculator apps we rank are free to download, including BigInt Calculator and Calculator‰.
BigInt Calculator has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 248+ bigint calculator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
BigInt Calculator is a multi-threaded calculator that uses a table-based format, similar to a spreadsheet, for input and editing. It supports arbitrary-precision arithmetic, allowing you to work with very large numbers and complex expressions.
It can handle basic arithmetic operations (+, -, ×, ÷), exponents (^), parentheses, decimals, negative numbers, and fractional powers. It correctly handles operator precedence and can work with numbers of any size.