Best Casio Fx 580 Apps

237+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated July 2026

The best casio fx 580 apps on iPhone average 4.4★ across 237+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.

Compare top Casio Fx 580 Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Scientific Calculator Plus 991Scientific Calculator Plus 991Free4.7★ (12K)YesYesAug 2026
2Scientific Calculator fx-991Scientific Calculator fx-991Free4.5★ (381)YesYesAug 2026
3ClassWiz Calc App QRClassWiz Calc App QRFree2.1★ (8)YesYesJul 2026
4Calculator Air: AI Math SolverCalculator Air: AI Math SolverFree4.7★ (83K)NoYesAug 2026
5Calculator +ㅤCalculator +ㅤFree4.6★ (4.5K)YesYesAug 2026
6Taculator 84 Graphing CalcTaculator 84 Graphing CalcFree4.5★ (7.5K)NoYesAug 2026
7CASIO WATCHESCASIO WATCHESFree4.7★ (19K)NoNoAug 2026
8Calculator X: Math for iPadCalculator X: Math for iPadFree4.6★ (6.2K)YesYesJul 2026

Top Picks for Casio Fx 580

Scientific Calculator Plus 991#1

Scientific Calculator Plus 991 by Tran Duy

NCalc & CalcES Calculator 115
Editor's Choice
📚 Education
4.7😊(12K ratings)
FreeAdsIn-App Purchases
Scientific Calculator Plus 991 screenshot 1
Scientific Calculator Plus 991 screenshot 2
Scientific Calculator Plus 991 screenshot 3
Scientific Calculator Plus 991 screenshot 4
Scientific Calculator Plus 991 screenshot 5
Scientific Calculator Plus 991 screenshot 6

This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.

What We Love

  • 👍 Intuitive and easy to use
  • 🚀 Powerful and feature-rich
  • 💡 Customizable interface and settings
  • 🔍 Extensive library of formulas and equations

Room to Improve

  • 🐛 Occasional bugs and input issues
  • 🔀 Confusing layout and button placement
  • 💰 Some advanced features locked behind paywall
Scientific Calculator fx-991#2

Scientific Calculator fx-991 by Dinh Phuc

Step-by-step Math Solver
Strong Contender
📚 Education
4.5(381 ratings)
FreeAdsIn-App Purchases
Scientific Calculator fx-991 screenshot 1
Scientific Calculator fx-991 screenshot 2
Scientific Calculator fx-991 screenshot 3
Scientific Calculator fx-991 screenshot 4
Scientific Calculator fx-991 screenshot 5
Scientific Calculator fx-991 screenshot 6

This app provides a powerful scientific calculator with step-by-step solutions for equations, advanced functions, and graphing capabilities. It includes a formula library and unit converter, inspired by a popular Casio model, to aid in learning and problem-solving for math and science subjects.

ClassWiz Calc App QR#3

ClassWiz Calc App QR by CASIO COMPUTER CO., LTD.

Worth Considering
📚 Education
2.1(8 ratings)
FreeAdsIn-App Purchases
ClassWiz Calc App QR screenshot 1
ClassWiz Calc App QR screenshot 2
ClassWiz Calc App QR screenshot 3
ClassWiz Calc App QR screenshot 4
ClassWiz Calc App QR screenshot 5
ClassWiz Calc App QR screenshot 6

This app brings the functionality of Casio's ClassWiz scientific calculators to your smartphone or tablet. Perform advanced calculations, manage spreadsheets, and generate graphs by connecting to Casio's online services. It mirrors the operation of physical calculators and uses QR codes for seamless integration.

More Casio Fx 580 apps to explore

4
Calculator Air: AI Math Solver
Calculator Air: AI Math Solver
Calculator Air: AI Math Solver
Basic, Scientific & Photo Math
Free

Solve math problems instantly with a powerful AI-driven calculator. Features include basic and scientific calculations, a photo math solver, and an AI homework helper for step-by-step explanations. Ideal for students and professionals needing quick, accurate math solutions.

Basic and scientific calculatorPhoto math solverAI homework helper
🔧 Utilities
(83K)
subscription
5
Calculator +ㅤ
Calculator +ㅤ
Calculator +ㅤ
Math, Scientific & Fraction
Free

This app simplifies math with basic, scientific, and fraction calculations. It also features a unique snap-and-scribble function to solve problems from photos. Customize your experience with themes and access a calculation history.

Snap and Scribble CalculatorBasic CalculatorScientific Calculator
🔧 Utilities
(4.5K)
subscription
6
Taculator 84 Graphing Calc
Taculator 84 Graphing Calc
Taculator 84 Graphing Calc
Graphing Calculator for TI-84
Free

This advanced calculator app offers comprehensive tools for high school and college students, covering everything from pre-algebra to calculus and statistics. It features high-resolution graphing, matrix operations, and detailed statistical analysis, all accessible through an intuitive interface.

Scientific and advanced math functionsHigh-resolution graphing and plottingMatrix operations and storage
📚 Education
(7.5K)
free with in-app purchases
7
CASIO WATCHES
CASIO WATCHES
CASIO WATCHES
CASIO Bluetooth watch app
Free

This app connects to compatible CASIO watches via Bluetooth to offer enhanced functionality. Manage watch settings, track daily activities, access exclusive brand content, and even customize your own watch.

Bluetooth watch connectionTime and world time settingsActivity tracking (steps, calories)
🌟 Lifestyle
(19K)
free with in-app purchases
8
Calculator X: Math for iPad
Calculator X: Math for iPad
Calculator X: Math for iPad
Smart History, Plus Scientific
Free

This app offers a smart calculator experience across iPad, iPhone, and Apple Watch. It features a history of calculations, the ability to edit equations, and a convenient dark mode. Easily share your results and enjoy enhanced productivity with its user-friendly interface.

Basic & Easy to UseHistory of CalculationsEdit Equation
💰 Finance
(6.2K)
free with in-app purchases
9
Fraction Calculator Plus #1
Fraction Calculator Plus #1
Fraction Calculator Plus #1
Decimal Converter,Construction
Free

Easily perform fraction calculations including addition, subtraction, multiplication, and division. Convert fractions to decimals and vice versa with a clear, user-friendly interface. Ideal for students, cooks, and DIYers needing quick and accurate fraction management.

Add, subtract, multiply, and divide fractionsConvert fractions to decimalsAutomatically simplifies fractions
📊 Productivity
(22K)
free with in-app purchases
10
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
11
Calculator Plus #1
Calculator Plus #1
Calculator Plus #1
Basic Calculator with History
Free

A straightforward calculator app designed for everyday math, school, budgeting, and shopping. It offers essential functions, a clear interface with large buttons, and a history log for reviewing past calculations. Advanced features include memory functions, percentage calculations, and multi-window support for efficient workflow.

Basic arithmetic operationsCalculation historyMemory function
🔧 Utilities
(5K)
free with in-app purchases
12
Ncalc - Graphing Calculator 84
Ncalc - Graphing Calculator 84
Ncalc - Graphing Calculator 84
Intended for use with Ti-84
Free
$4.99 | 100% OFF

This app offers a comprehensive graphing and scientific calculator experience, mimicking the functionality of a Ti-84. It includes advanced features for graphing, symbolic calculations, equation solving, and extensive statistical analysis. Users can upgrade for full access to all capabilities.

Graphing calculator with function, polar, and parametric plotsScientific calculator with computer algebra systemEquation solver for various equation types
📚 Education
(4.9K)
freemium
13
Voice Calculator - Human speak
Voice Calculator - Human speak
Voice Calculator - Human speak
calculator with history record
Free

Perform calculations using your voice and hear results spoken aloud. This app automatically records your calculation history and allows for easy financial bookkeeping with notes and segments. It offers customizable voice tones and themes, optimized for iPad.

Voice input for calculationsSpoken button numbers and resultsAutomatic calculation history recording
💰 Finance
(1.3K)
free with in-app purchases
14
Scientific Calculator *
Scientific Calculator *
Scientific Calculator *
Math & financial Calculator
Free

This app offers a comprehensive suite of calculation tools, including basic and advanced math functions, unit conversions, and financial calculators. It also features a history log for easy access to past calculations and allows for customization of themes.

Basic and complex calculationsUnit and currency converterFinancial calculators (loan, discount)
📊 Productivity
(8)
free with in-app purchases
15
Calculator & AI Math Solver
Calculator & AI Math Solver
Calculator & AI Math Solver
Scientific, Basic, Photo Calc
Free

This app offers a powerful calculator with a history feature and advanced scientific functions. It uses AI to solve complex math problems instantly, including solving equations from photos and through a chat interface.

Basic and advanced scientific calculationsSolve math problems from photosAI chat bot for instant solutions
🔧 Utilities
(41)
free with in-app purchases
16
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
17
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
(4.3K)
free with in-app purchases
18
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
(13K)
free with in-app purchases
19
Dazzly: Color by Number Game
Dazzly: Color by Number Game
Dazzly: Color by Number Game
Gems by numbers coloring book
Free

Relax and de-stress with this diamond art coloring book app. Match numbered gems to create dazzling pictures and build your own coloring collection. Enjoy family-friendly content and share your creations.

Diamond art coloring by numbersThousands of beautiful drawingsDaily new images
🎬 Entertainment
(264K)
free with in-app purchases
20
The Best Calculator - Calc Pro
The Best Calculator - Calc Pro
The Best Calculator - Calc Pro
10 Powerful Calculators
Free

This app offers a comprehensive suite of 10 powerful calculators and 10 financial worksheets, designed to handle everything from basic arithmetic to complex scientific and financial calculations. It includes features like unit conversion, currency exchange, graphing, and statistical analysis, making it a versatile tool for students and professionals.

10 powerful calculators (Standard, Scientific, Graphing, etc.)10 financial worksheets (Mortgage, Loan, Compound Interest, etc.)Unit Converter with 3000+ conversions
🔧 Utilities
(4.6K)
free with in-app purchases

FAQ about Casio Fx 580

What are the best casio fx 580 apps for iPhone?
Scientific Calculator Plus 991 tops our casio fx 580 apps ranking as of July 2026, with a 4.7-star average from 12K App Store ratings, and it's free to download.
Yes — 19 of the top casio fx 580 apps we rank are free to download, including Scientific Calculator Plus 991 and Scientific Calculator fx-991.
Scientific Calculator Plus 991 shows ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 237+ casio fx 580 apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
NCalc is a comprehensive scientific calculator that includes a graphing module, a large formula library, and a unit and currency converter. It is designed to assist students, engineers, and math enthusiasts with a wide range of mathematical tasks.
Key features include a natural display for entering expressions as they appear in textbooks, a graphing module similar to popular graphing calculators, advanced tools for algebra, calculus, matrices, and statistics, and a built-in unit and currency converter. It also supports multiple number bases and provides a calculation history.