Grapher

Grapher Free App

Rated 3.95/5 (8,614) —  Free Android application by opticron

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About Grapher

Plot functions and trace their graphs with ease! This is a simple graphing calculator with graphing capabilities similar to TI-83 or TI-89 calculators. To start adding equations, tap the graph! There are no ads, because I hate ads.

Features:
* Graph tracer via trackball, trackpad, d-pad(hard or soft)
** Press for current trace position
** Up/down to change functions
* Find intersection of 2 graphs
* Save graph to SD card in "My Graphs"
* Pinch-to-zoom and panning
* Full screen graphing calculator
* Custom equation keyboard
* All colors are customizable
* Long press to bring up soft d-pad (top or bottom)
* Install on external media

I would love to hear suggestions for any improvements or if you have problems using this program. Please email me if you think something is missing or if you would like to request functionality.

I am not able to respond to comments, so please send an email so I can be clear on your request.

(aka graph generator, function grapher, function plotter, math grapher, graphing calculator, function generator, maths graph)

How to Download / Install

Download and install Grapher version 1.0.1 on your Android device!
Downloaded 1,000,000+ times, content rating: Everyone
Android package: com.opticron.grapher, download Grapher.apk

All Application Badges

Free
downl.
Android
2.1+
Bug
buster
For everyone
Android app

App History & Updates

What's Changed
* Fix crash bug involving bad window limit values
More downloads  Grapher reached 1 000 000 - 5 000 000 downloads
Version update Grapher was updated to version 1.0.1
More downloads  Grapher reached 500 000 - 1 000 000 downloads
More downloads  Grapher reached 100 000 - 500 000 downloads

What are users saying about Grapher

J70%
by J####:

Simple to use and perfect for anything math related you could need in school and more than that. If you really need to plot circles I would assume you use different software on the PC like GeoGebra or something. You can plot multiple graphs in different colors and find intersections. The only thing missing would be being able to input fractions as actual fractions instead of using parentheses and the division symbol but that can be overlooked. (Also no y variable)

S70%
by S####:

I started with graph's just now and I am pretty impressed as a result it is making me to like math as I can really visualize something rather than solve the equation and unfortunately mug up results !!

S70%
by S####:

Practically doesn't deserve a single start. Perhaps we could give negative feedbacks

O70%
by O####:

Very easy to use ,Very clear ,Fast ,No lag at all , I use this app to check the answer of the math questions . Nice work and thanks

S70%
by S####:

It drew half graphs always like type 5x^(2/5)-2x it shows half graphs is not just 1 I have tried many and they are not even symmetrical

V70%
by V####:

app is good but for explicit function there must another option as most of the graph does not give pure value for both positive and negetive parts

S70%
by S####:

good app for graphical analysis but please take into concern plotting of implicit functions graph as some functions cannot be easily written in terms of x

T70%
by T####:

Extremely slow and get hanged easily

D70%
by D####:

A very helpful app to plot graphs on the go with the ability to plot multiple function on the same graph. You can save the functions and save plots as png.

S70%
by S####:

Simple & nice app. Diffrent colour feature r great...

Q70%
by Q####:

برنامج يستاهل 5 نجوم . ويرسم بدون انترنت

S70%
by S####:

Circle not in your app pliz work on it...

S70%
by S####:

Obsolete compared to Desmos. Use that.

E70%
by E####:

If you need to do graphics, just put it in. It will precisely show you what you need. It has a very clean and beautiful design and it's very easy to use. The only thing that saddens me it's the fact it can't do even more. Some graphics it just can't do. But yes, definitely recommend!

C70%
by C####:

I started with graph's just now and I am pretty impressed as a result it is making me to like math as I can really visualize something rather than solve the equation and unfortunately mug up results !!

C70%
by C####:

It really helped me a lot in solving numerical problems of quantum mechanics. So one downloading for mathematical amusement may not find it useful

U70%
by U####:

Extremely slow and get hanged easily

C70%
by C####:

How do I draw vertical line like X = 2 Tell me and you will get 5 stars.

C70%
by C####:

HELP ME PUT x²+4 there I'm dying to know how hahahaha good app

C70%
by C####:

For sin graphs. Make it so they I can change between radians and degrees please.

A70%
by A####:

It can't plot piece wise func and inequality it also show those points on the graph which doesn't exist on it

C70%
by C####:

Par slow hai

C70%
by C####:

Just what I needed. Help visualize functions

J70%
by J####:

(x+3)^2+(y+5)^2=9 is equal to y=±sqrt(9-(x-3)^2)-5, just enter 2 equation(±, so one +, and one -) and plot it, you will find the circle

N70%
by N####:

Simple to use and perfect for anything math related you could need in school and more than that. If you really need to plot circles I would assume you use different software on the PC like GeoGebra or something. You can plot multiple graphs in different colors and find intersections. The only thing missing would be being able to input fractions as actual fractions instead of using parentheses and the division symbol but that can be overlooked. (Also no y variable)

R70%
by R####:

The square root of a number has two valuse,one positive and one negative. Grapher only takes into account the positive value so when plotted it will not give the proper graph. Also, the input is basic for example a fraction has to be entered in the form of a divide sign this makes the equation harder to read. if input is familiarised and fixed square root problem will rate 5 stars

R70%
by R####:

Has an easy interface, allows more than 1 graph simultaneously, has diff colours, works well n looks good

R70%
by R####:

Very good and sooo practical!Now i can verify very easily if i made my graphs right !

Q70%
by Q####:

Very easy to use ,Very clear ,Fast ,No lag at all , I use this app to check the answer of the math questions . Nice work and thanks

R70%
by R####:

It's the best and simple app I've ever seen of this kind. No ads and easy to use. BUT could you add features like polar coordination system?

R70%
by R####:

Practically doesn't deserve a single start. Perhaps we could give negative feedbacks

R70%
by R####:

Firstly, there is the fact all equations must be equal to f(x) , excluding the possibility of drawing circles. Secondly, the intersection finder just finds the intersection on the screen, then works out the coordinates from that, making it close, but wrong. For example the solution to f(x)=x, f(x)=0 was 0.003877, 0.001912, not (0,0).

I70%
by I####:

I've had to uninstall multiple times because either the axis had transformed (resulting in unreadable graphs) or completely disappeared.

R70%
by R####:

Love it, thoe its hard to move around the graph because the graph editor pops up when you try

R70%
by R####:

Gives you a nice view of the graph. Thank you!

R70%
by R####:

when I tried f(x) = x^(1/3) it showed the graph in first quadrant only where as it extends in the 3rd quadrant as well

R70%
by R####:

Simple & nice app. Diffrent colour feature r great...

I70%
by I####:

Having variety of function generally a student use.

R70%
by R####:

Function Plotter is better than this. Only for windows phone!!

F70%
by F####:

This app really helps you should check it out


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Rating Distribution

RATING
4.05
8,614 users

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