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Best T84 Apps

130+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated June 2026

Whether you're new to t84 or looking for an upgrade, our curated collection of 130+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for T84

Calculate84#1

Calculate84 by Century Light LLC

Intended for use with TI-84
Editor's Choice
📚 Education
4.8😊(52K ratings)
FreeAdsIn-App Purchases
Calculate84 screenshot 1
Calculate84 screenshot 2
Calculate84 screenshot 3
Calculate84 screenshot 4

This app offers a modern graphing calculator experience on your iPhone. It features fast, interactive touch-screen graphing, scrollable windows, and intelligent error messages for a more intuitive user experience. Designed to be a usable alternative to physical graphing calculators.

What We Love

  • 👍 Identical to TI-84 calculator
  • 🚀 Seamless and intuitive user experience
  • 💰 Affordable alternative to physical calculator
  • 📱 Convenient to have on phone

Room to Improve

  • 🐛 Occasional bugs and crashes
  • 🔍 Missing some advanced features like regression types
  • 🔒 Previous purchases removed without warning
Ncalc - Graphing Calculator 84#2

Ncalc - Graphing Calculator 84 by Tran Duy

Intended for use with Ti-84
Strong Contender
📚 Education
4.6😊(4.9K ratings)
FreeAdsIn-App Purchases
Ncalc - Graphing Calculator 84 screenshot 1
Ncalc - Graphing Calculator 84 screenshot 2
Ncalc - Graphing Calculator 84 screenshot 3
Ncalc - Graphing Calculator 84 screenshot 4
Ncalc - Graphing Calculator 84 screenshot 5
Ncalc - Graphing Calculator 84 screenshot 6

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.

What We Love

  • 👍 Great calculator app
  • 🚀 Powerful features
  • 💰 Good value for money
  • 📱 Convenient mobile version of TI-84

Room to Improve

  • 🐛 Occasional crashes or bugs
  • 🔍 Lack of instructions/documentation
  • 💸 Premium features require additional purchase
Graphing Calculator X84#3

Graphing Calculator X84 by Incpt.Mobis

Designed for use with Ti-84
Worth Considering
📚 Education
4.5😐(50K ratings)
FreeAdsIn-App Purchases
Graphing Calculator X84 screenshot 1
Graphing Calculator X84 screenshot 2
Graphing Calculator X84 screenshot 3
Graphing Calculator X84 screenshot 4
Graphing Calculator X84 screenshot 5
Graphing Calculator X84 screenshot 6

This app offers a free, powerful alternative to hardware graphing calculators. It supports basic to complex math, including graphing, statistics, and matrix operations, with a built-in user manual for assistance.

What We Love

  • 🚀 Exact replica of TI-84 calculator
  • 🤩 Great for school/college math
  • 👍 Convenient to have on phone
  • 💰 Cheaper than physical calculator

Room to Improve

  • 📺 Intrusive and frequent ads
  • 🔓 Key features locked behind paywall
  • 🛑 Restricted functionality compared to physical TI-84

More T84 apps to explore

4
Taculator 84 Graphing Calc
Taculator 84 Graphing Calc
Taculator 84 Graphing Calc
Statistics, Matrix + Graph
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
5
Calculate84 Plus
Calculate84 Plus
Calculate84 Plus
Intended for use with TI-84
Free

This app provides advanced scientific and graphing calculator functionality. It allows users to plot multiple functions, perform complex mathematical operations, analyze data with statistics, and manage matrices. An optional subscription unlocks even more features.

Natural textbook equation inputPlot multiple functions with touch controlsAdvanced math, number, and probability functions
📚 Education
(302)
free with in-app purchases
6
Desmos Graphing Calculator
Desmos Graphing Calculator
Desmos Graphing Calculator
by Desmos, Inc.
Free

Explore mathematical concepts by graphing any equation, from simple lines to complex series. This powerful tool allows for interactive exploration with sliders, data tables, and animations. It also includes a scientific calculator and supports inequalities and accessibility features.

Graph any equation (polar, cartesian, parametric)Interactive sliders for function transformationsInput and plot data with tables
📚 Education
(1.3K)
free
7
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
(4.1K)
subscription
8
GraphNCalc83
GraphNCalc83
GraphNCalc83
Graphing calculator
$12.99

This app offers a powerful graphing calculator experience with touch-based input for enhanced interaction. It supports natural textbook notation, advanced math functions, and various plotting capabilities. Users can also utilize its programming features and built-in tools like unit conversion and a periodic table.

Touch-based graphing and editingNatural textbook notation inputAdvanced math and statistical functions
📚 Education
(3.8K)
paid
9
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
10
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

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.

Large buttonsClear displayFast calculations
🔧 Utilities
(404K)
ad-supported
11
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Easy Basic Calculator
Free

A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.

Large buttonsDual-line display18 color themes
🔧 Utilities
(13K)
ad-supported
12
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
(81K)
subscription
13
Math AI Homework Helper,Solver
Math AI Homework Helper,Solver
Math AI Homework Helper,Solver
Algebra calculator free of ads
Free

This app provides instant, step-by-step solutions for a wide range of math problems, from basic arithmetic to calculus. Users can scan math problems with their camera and receive detailed explanations, multiple solving methods, and graphing tools. It's designed to help students understand and solve challenging math questions quickly.

Scan math problems with cameraStep-by-step explanationsGraphing calculator
📚 Education
(30K)
free with in-app purchases
14
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
15
Calculator +
Calculator +
Calculator +
Scientific Calc Plus Fraction
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
(9.6K)
free with in-app purchases
16
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
17
Panecal Scientific Calculator
Panecal Scientific Calculator
Panecal Scientific Calculator
For engineers and students
Free

This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.

Formula editing with cursor and swipeReuse past formulasVariable memory for calculations
🔧 Utilities
(1.9K)
ad-supported
18
Solvely - AI Study Tools
Solvely - AI Study Tools
Solvely - AI Study Tools
Math Solver & Homework Helper
Free

This app provides AI-powered academic assistance across various subjects. It offers step-by-step solutions, note-taking, and study material conversion to help students understand concepts better and improve their academic performance.

Accurate AI answers with step-by-step explanationsPhoto to answer functionality for problemsSupport for all subjects including Math, Science, and Humanities
📚 Education
(38K)
free with in-app purchases
19
MathPapa - Algebra Calculator
MathPapa - Algebra Calculator
MathPapa - Algebra Calculator
Algebra Calculator & Solver
Free

This app provides step-by-step solutions to algebra problems, helping users understand how to solve equations and inequalities. It can also graph equations, factor expressions, and evaluate mathematical expressions.

Step-by-step equation solvingLinear and quadratic equation solverLinear and quadratic inequality solver
📚 Education
(17K)
freemium
20
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.

Ad-free experienceCalculation historyVisual input
💰 Finance
(23K)
free with in-app purchases

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