Best apps like Scientific Calculator fx-991

24+ similar apps compared and reviewed

4.5 avg rating
7 free apps
Updated August 2026

Scientific Calculator fx is great, but it's not the only option. Explore 24+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Scientific Calculator fx

Calculator ∞#1

Calculator ∞ by Incpt.Mobis

The Best Scientific Calculator
Editor's Choice
📚 Education
4.7(6.3K ratings)
$5.99In-App Purchases
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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.

Graphing Calculator X84#2

Graphing Calculator X84 by Incpt.Mobis

Designed for use with Ti-84
Strong Contender
📚 Education
4.5😐(50K ratings)
FreeAdsIn-App Purchases
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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
Graphing Calculator Plus AI#3

Graphing Calculator Plus AI by Incpt.Mobis

Scientific Graphing Calculator
Worth Considering
📚 Education
4.6😊(12K ratings)
$5.99In-App Purchases
#95in Education
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This app serves as a powerful scientific graphing calculator, offering advanced mathematical functions and graphing capabilities. It includes a built-in AI assistant for math queries and a comprehensive user manual. Ideal for students and professionals needing complex calculations and visualizations.

What We Love

  • 💰 Affordable alternative to physical calculators
  • 🚀 Replicates TI-84 functionality well
  • 👍 Convenient to have on a mobile device
  • 🤖 Accurate calculations and results

Room to Improve

  • 🐛 Occasional graphing issues or inaccuracies
  • 🔍 Cluttered or unintuitive interface in some areas
  • 🔢 Difficulty exiting certain modes or functions

More apps like Scientific Calculator fx

4
Scientific Calculator Plus 991
Scientific Calculator Plus 991
Scientific Calculator Plus 991
NCalc & CalcES Calculator 115
Free

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.

Natural display inputGraphing moduleFormula library
📚 Education
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5
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
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6
Maple Calculator: Math Solver
Maple Calculator: Math Solver
Maple Calculator: Math Solver
Get math homework help
Free

This app provides comprehensive math homework assistance, offering step-by-step solutions for a wide range of high school and university level problems. It functions as a graphing, scientific, algebra, calculus, and integration calculator, with the ability to visualize equations in 2-D and 3-D.

Step-by-step math solutionsCamera and handwriting input2D and 3D graphing
📚 Education
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7
Desmos Graphing Calculator
Desmos Graphing Calculator
Desmos Graphing Calculator
by Desmos
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
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8
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)
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9
Graphing Calculator Pro⁸⁴
Graphing Calculator Pro⁸⁴
Graphing Calculator Pro⁸⁴
Scientific Graphing Calculator
$12.99

This app provides a comprehensive graphing and scientific calculator experience on your mobile device. It allows you to graph multiple functions, solve equations, perform statistical analysis, and work with matrices, all with a familiar interface. Ideal for students and anyone needing advanced calculation capabilities on the go.

Graph multiple functions with different colorsSolve equations and find integralsPerform advanced scientific calculations
📚 Education
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10
Desmos Scientific Calculator
Desmos Scientific Calculator
Desmos Scientific Calculator
by Desmos, Inc.
Free

This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.

Basic arithmetic operationsTrigonometric functionsStatistical calculations
📚 Education
(327)
free