If you are looking for the **Best Graphing Calculator App iPhone** to download for free, look no further.

Our expert panel of reviewers has tested dozens of apps and we have compiled a list of the 8 Best Graphing Calculator App iPhone that passed our tests.

Contents

Check out our list of the 8 Best Graphing Calculator App iPhone, tried and tested by our expert reviewers.

## 8 Best Graphing Calculator App iPhone

### 1. Desmos Graphing Calculator

“Explore math with the fast and powerful Desmos Graphing Calculator. Plot any equation, from lines and parabolas to derivatives and Fourier series. Add sliders to demonstrate function transformations, create tables to input and plot data, animate your graphs, and more—all for free.

Features:

Graphing: Plot polar, cartesian, or parametric graphs. There’s no limit to how many expressions you can graph at one time—and you don’t even need to enter expressions in y= form!

Sliders: Adjust values interactively to build intuition, or animate any parameter to visualize its effect on the graph.

Tables: Input and plot data, or create an input-output table for any function.

Statistics: Find best-fit lines, parabolas, and more.

Zooming: Scale the axes independently or at the same time with the pinch of two fingers, or edit the window size manually to get the perfect window.

Points of Interest: Touch a curve to show maximums, minimums, and points of intersection. Tap the gray points of interest to see their coordinates. Hold and drag along a curve to see the coordinates change under your finger.

Scientific Calculator: Just type in any equation you want to solve and Desmos will show you the answer. It can handle square roots, logs, absolute value, and more.

Inequalities: Plot Cartesian and polar inequalities.

Accessibility: Read and edit math using a screen reader or a refreshable Braille display, and use audio trace to explore graphs and data through sound.

Offline: No internet access required.

Visit www.desmos.com to learn more and to see the free browser version of our calculator.”

### 2. EduCalc Classic

“A powerful, flexible graphing calculator

Does far more than most calculators out there.

Features:

1) Scientific Calculator. Simple to grasp and easy to use, but powerful features are available when you need them. Available functions include the following:

• the usual arithmetic functions and exponentiation.

• square root, cube root, nth root, natural log, log base 10, log of arbitrary base, absolute value, factorial, permutations (nPr), combinations (nCr), modulus, random integer, bell curve, cumulative normal distribution, decimal to fraction.

2) Graphing. Capabilities:

• Graph up to four equations at once.

• Graphs are labeled.

• You can drag the graph or pinch to zoom in or out.

• Calculator can find roots and intersections.

• Graph in polar coordinates.

• Graph parametric equations

• Can graph implicit functions, such as x^2+y^2-4=0. Most calculator apps can’t do this!

3) A unit converter. With a tap, you can enter the result of your conversion into the calculator. Currently converts different units of the following: acceleration, angle, area, density, distance, energy, force, mass, power, pressure, speed, temperature, time, and volume. Great for doing physics homework!

4) Constants for scientific calculations — speed of light, strength of gravity at Earth’s surface, etc. etc. etc. Tapping on a constant will insert it into your calculation — i.e, you don’t have to key in the value. Again, great for doing physics homework!

5) It can make a table of the values of any function you care to enter. You can choose the starting x value of the table, as well as how much x increases for each successive row.

6) Help screens linked directly to many of the available functions and constants. Tap the disclosure arrow to see the definition.

7) Forgot the quadratic formula? Or the double-angle formulas for sine and cosine? The math/science reference hits the high points of various subjects. Currently includes algebra, differential and integral calculus, geometry, trigonometry, vectors, vector calculus, and classical mechanics.

8) Keep track of significant figures [AKA sig figs]

9) Statistics — enter data and make a histogram, box and whisker plot, or scatter plot with optional regression line.

If you are viewing this in iTunes, you will see five iPhone screenshots and five iPad screenshots. But even ten shots don’t come close to showing everything this calculator can do.

I’d love to hear your comments or suggestions. You can write me at mathscixyzgraphcalc@gmail.com — but without the xyz. Thanks!”

### 3. Good Grapher – scientific graphing calculator

“Good Grapher™ – great and very powerful scientific graphing calculator. It will become your reliable assistant from elementary school to university and work.

Customer reviews:

“Amazing app! I love it. It has Many great features that beat my T83”

“Best calculator. It’s my favorite app now ) Functionality and usability is on top level.”

SCIENTIFIC CALCULATOR:

– History tape

– real and complex numbers

– radians and degrees angle modes, support for minutes, seconds, grads

– constants: astronomical, atomic, electromagnetic, mathematical, physicochemical, universal

– functions: sin, cos, tan, cot, sec, csc, sinh, cosh, tanh, coth, asin, acos, asec, acsc, atan, acot, asinh, acosh, atanh, acoth, log2, log10, ln, logn(n,x) (log x with base n), √, ³√, abs, avg, ceil, floor, round, deg2rad, rad2deg, max, min, sgn, lcm, gcd, nCr, nPr, arg, real, imag, conj, polar

– operators: +, -, *, /, % (modulus), ^, ! (factorial), ‘ (minutes), ” (seconds), {grad}

– ← – assignment operator and A, B,…,J variables for values storage

– copy/email calculations

2D GRAPHING CALCULATOR:

– carefully-designed graph visualization with multi-touch support (pinch to zoom and drag to scroll)

– cartesian y(x) and x(y), polar r(θ) graphs (parametric x(t)y(t) and implicit in Pro version)

– inequalities drawing (in Pro version)

– function tracing and automatic min/max, zeros, intersections scanning for all function types

– intersection discovering between different function types, e.g. between cartesian y=x and polar r=1

– unlimited number of functions can be drawn simultaneously

– standard, trigonometric and logarithmic axes

– proportional and non-proportional scaling

– customizable graph colors

– table of graph values

– copy, save, email screenshot

3D GRAPHING CALCULATOR:

– pinch to zoom and drag to rotate

– cartesian x(y,z), y(x,z), z(x,y), cylindrical x(p,φ), y(p,φ), z(p,φ), spherical r(θ,φ) graphs (parametric xyz(u,v) and implicit in Pro version)

– inequalities drawing (in Pro version)

– points, lines, surface drawing modes

– configurable graph bounds

– copy, save, email screenshot

MATH SOLVER:

– polynomial solver:

2x – 3 = 0 (linear)

3x² + 4x + 8 = 0 (quadratic)

5x³ + 2x² – 4x + 2 = 0 (cubic)

7x⁴ – 2x³ + 3x² + 2x – 1 = 0 (quartic)

– system of linear equations solver

with 2 unknown

2x – 9 = 9

3x + 4y = -13

with 3 unknown

-5x + 4y + 2z = -4

7x + 2y + 3z = 19

3x + 5y – 1z = 10

MAC APP STORE

Good Grapher is also available on the Mac App Store.

See www.goodgrapher.com

Visit www.goodgrapher.com for more screenshots, demo videos, details and news. Feel free to contact us for any questions and suggestions.”

### 4. Graphing Calculator Plus

“Graphing Calculator has a formidable reputation of being the top alternative to heavy complex hardware calculators. It is suitable for all types of users, whether they are looking to carry out basic or advanced mathematics; Graphing Calculator has it all. It is equipped with a powerful MATH CORE advocated by MATH DISPLAY support, which increases its functionality by leaps and bounds, making it an ideal choice for engineers, math students etc. It comes with an in depth User Manual and Tutorial to answer any questions you have, regarding the app and to help you further understand the world of advanced mathematics.

◉ BUILT-IN DOCUMENTS:

▸ Basic General Calculation

▸ X & Y Calculation & Intersection of Functions

▸ Calculate Local Maxima, Minima…

▸ Statistics & Regression

▸ Solve Equations & Polynomial

▸ Calculate Integral Functions

◉ CALCULATOR INCLUDED:

▸ Universal Calculator App

▸ Mathematical Display

▸ Complex Number Calculation

▸ Equations Solver

▸ Edit & Export Expression/Result

▸ History Tape View

▸ Basic Calculations (+, -, x, ÷, ^, √,…)

▸ Advanced Functions (Sin,Cos,Ln,E,…)

▸ Y-Var & Customize Functions (F1, F2, F3)

▸ Unit Converter (50 Categories, 1000+ Units)

▸ Over 40 Common Constants

▸ Fraction and Degree/Angle Calculation

▸ Numeric Integral & Derivative Calculation

▸ Hardware Keyboard Support

▸ Dual Themes(Skin)

◉ 2D GRAPH:

▸ Simultaneous Graph

▸ Smooth Zoom & Transformation

▸ Support Parametric, Polar & Sequences

▸ Intersections, Min, Max & Special Points TRACE

▸ Box Plot (STAT)

◉ STATISTIC,REGRESSION & TEST:

▸ Create/Edit Lists

▸ 1-Var, 2-Var Statistic

▸ Linear, Quadratic, Cubic Regression

▸ Logarithm, Exponential, Power,… Regression

▸ PropZ,T, SampZ,T, Chi, Interval… Test

▸ Dialog Wizard Setups

◉ MATRIX:

▸ Create/Edit Matrices

▸ Basic Matrix Functions (Det,Dim,Fill,…)

▸ Advanced Matrix Functions (Inv, Ref, RRef,…)

◉ PROGRAMING:

▸ Control Commands

▸ I/O Commands

▸ Example Source Codes Included

◉ NUMBER BASE-N MODE:

▸ 15 Different Bases

▸ Support Up to 64 Bits Integer

▸ Binary Operation (NOT, OR, XOR, 2’S,…)

◉ ADITIONAL FEATURES:

▸ Financial Calculation (TVM Solver)

▸ Geometry & Chemistry App

▸ And more will be available in further update!

IT IS THE MUST HAVE CALCULATOR !!!!!!!

We love your feedback, Thanks a lot !

Please contact us for questions, bugs/crash reports, conversion requirements, etc…”

### 5. Graphing Calculator X84

“Graphing Calculator X has a formidable reputation of being the FREE alternative to heavy complex hardware calculators. It is suitable for all types of users, whether they are looking to carry out basic or complex mathematics; It is equipped with a powerful MATH CORE advocated by MATH DISPLAY support, which increases its functionality by leaps and bounds, making it an ideal choice for engineers, math students etc. It comes with an in depth User Manual and Tutorial to answer any questions you have, regarding the app and to help you further understand the world of advanced mathematics.

◉ BUILT-IN DOCUMENTS:

▸ Basic General Calculation

▸ X & Y Calculation & Intersection of Functions

▸ Calculate Local Maxima, Minima…

▸ Statistics & Regression

▸ Solve Equations & Polynomial

▸ Calculate Integral Functions

◉ CALCULATOR INCLUDED:

▸ Universal Calculator App

▸ Mathematical Display

▸ Complex Number Calculation

▸ Edit & Export Expression/Result

▸ History Tape View

▸ Basic Calculations (+, -, x, ÷, ^, √,…)

▸ Advanced Functions (Sin,Cos,Ln,E,…)

▸ Y-Var & Customize Functions (Y1, Y2)

▸ Fraction and Degree/Angle Calculation

▸ Numeric Integral & Derivative Calculation

▸ Hardware Keyboard Support

▸ Dual Themes(Skin)

◉ 2D GRAPH:

▸ Simultaneous Graph (2 Y-Var)

▸ Smooth Zoom & Transformation

▸ Points TRACING

▸ Box Plot (STAT)

◉ STATISTIC,REGRESSION & TEST:

▸ Create/Edit Lists

▸ 1-Var, 2-Var Statistic

▸ Linear, Ln, Exp Regressions

▸ Dialog Wizard Setups

◉ MATRIX:

▸ Create/Edit Matrices

▸ Basic Matrix Functions (+,-,×,÷…)

▸ Transpose, Det,…

◉ ADITIONAL FEATURES:

▸ Quadratic Equation Solver

▸ 2-Var Linear Equation Solver

▸ And more will be available in further update!

IT IS THE MUST HAVE CALCULATOR !!!!!!!

We love your feedback, Thanks a lot !

Please contact us for questions, bugs/crash reports, conversion requirements, etc…”

### 6. PCalc

“PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a paper tape, multiple undo and redo, engineering and scientific notation, as well as support for hexadecimal, octal, and binary calculations.

Includes an Apple Watch app, so you can calculate on your wrist!”

### 7. Quick Graph

“It is a powerful, high-quality graphing calculator that takes full advantage of the multitouch display and the powerful graphing capabilities of the iPad and iPhone, both in 2D and 3D.

“The app you need to survive the next semester.”

— Gizmodo

A simple yet intuitive interface makes it easy to enter and/or edit equations and visualize them in mathematical notation.

It’s capable of displaying explicit and implicit (opt) equations as well as inequalities (opt) in both 2D and 3D, in all standard coordinate systems: cartesian, polar, spherical, and cylindrical, all with fantastic speed and beautiful results, which can be copied, emailed or saved to the photo library.

It also includes an evaluation feature to evaluate equations at specific points and a library where you can store commonly used equations.

Up to 6 equations can be visualized simultaneously in both 2D and 3D modes; this limitation can be removed by purchasing the advanced feature set.

Features:

– Enhanced 2D – 3D plotting mode for great hi-res graphics.

– Adaptive 2D algorithms.

– Hyperbolic and Inverse functions.

– Functions such as Min, Max, if.

– Configurable axis decimal / π

– Independent 2D zoom

– Support for cartesian, polar, cylindrical, and spherical coordinate systems.

– Interactive expression evaluation.

– Library for commonly used equations.

– Swipe to delete equations from the equation list.

– Save to photo library.

– Copy to clipboard.

– Turn graphs on/off

– Drag to rotate – move.

The advanced feature set gives you access to:

– External screen support

– 2D tracing.

– 2D and 3D implicit graphs.

– 2D and 3D inequalities.

– Roots and Intersections (2D)

– Value Table

– More features to come!

Please visit the website for more details.”

### 8. Taculator Graphing Calculator

“TACULATOR GRAPHING CALCULATOR

• Your graphing calculator for high school and college students.

• Includes all the commands and functions for advanced math, list, statistics, distribution, stat plots, etc.

• Use the arrow keys or your fingers to navigate inside the app.

• Covers everything you need: Pre-Algebra, Algebra 1 & 2, Pre-Calculus, Calculus, Statistics…

IT’S EVEN BETTER THAN AN ACTUAL CALCULATOR

• Taculator is 100X faster as it uses the huge calculation power of your iPhone/iPad, while handheld calculators are often slow.

• High-resolution graphing window: Make sharp and beautiful graphs.

• Your new calculator weighs nothing and is always ready on your phone.

• Share your calculations with friends as a text message or email.

◉ Math Functions

• Scientific calculator with all basic arithmetic and advanced functions.

• Ability to scroll through history and copy previous calculations.

• Complex numbers support

• Probability functions like nPr, nCr, factorial, random numbers.

• Enter fractions easily.

• Convert angles and use DMS format.

◉ Graphing Functions

• Graph every function you want and trace for X- and Y-values

• Calculate intersection, zero, minimum, maximum, integral, and derivative.

• Switch between full-screen graphs and normal mode.

• Zoom in and out with your fingers and adjust the window settings.

• Graph statistical plots like histogram, box plot, scatter plot, xy-line plot

• Draw vertical, horizontal, tangent, circle.

◉ Matrix Calculator

• Store matrices and reuse them using shortcuts like [A], [B], [C],…

• Do matrix arithmetic operations: Scalar multiplication, addition & subtraction, multiplication, power of a matrix.

• Calculate transpose, determinant, dimension, inverse matrix, row echelon form, reduced row echelon form, identity matrix, cumulated sum.

◉ List, Statistics, and Distribution

• Use the stat list editor to enter your list values.

• Perform 1- and 2-Variable statistics.

• Use lists to calculate min, max, mean, median, sum, product, standard deviation, variance.

• Find best-fit regressions: LinReg (ax+b), LinReg (a+bx), QuadReg, CubicReg, QuartReg, LnReg, ExpReg, PwrReg, Logistic, SinReg.

• Perform statistical tests: Z-Test, T-Test, 2-SampleZTest, 2-SampleTTest, 1-PropZTest, 2-PropZTest, ZInterval, TInterval, 2-SampleZInterval, 2-SampleTInterval, 1PropZInterval.

• Calculate various distributions: Normalpdf/cdf, invT, Tpdf/cdf, χ2pdf/cdf, Fpdf/cdf, Poissonpdf/cdf, Binompdf/cdf, Geometpdf/cdf.

◉ Command Catalog & Syntax Help

• Get help with all commands with our integrated Catalog & Help section.

• It provides you with syntax help, examples, and possible error messages.

• Enter a command and the app will show you the right syntax next to the cursor.

SUPPORT

Contact us at contact@taculator.com

—

For extended features such as more advanced calculations and functions, get the Taculator Pro membership.

Auto-Renewable Subscription Terms:

You can choose from three subscription options:

• A monthly subscription;

• A yearly subscription;

• A lifetime subscription which is paid for by a one-off upfront payment.

• Payment will be charged to iTunes Account at confirmation of purchase;

• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period;

• Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal;

• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase;

• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable;

• Prices are in U.S. dollars, may vary in countries other than the U.S. and are subject to change without notice.

Terms of Service:

https://www.taculator.com/terms-of-service.html

Privacy Policy:

https://www.taculator.com/privacy-policy.html”