About this app
I wrote this app for just some simple sketching, without a stylus or anything. Just fingers. I was just trying to send some diagrams about maths and physics problems on my phone to my friend. None of the apps on the store make that simple. They are either too simple, or too hard to use.
That’s why I created this app. Somewhere just in-between. Something just right about creating simple diagrams to tell someone else exactly what you mean. This app is not a paintbrush collection, although you are free to make artworks out of it (that piano screenshot actually took an hour to look right…) This is not a graphic calculator, as some of my friends asked me. It doesn’t spit out equations (although it can, but the equations will probably be useless to most people) or take equations as input. It is for situations where you know what a graph looks like but have no idea what is its function. It’s faster to draw something than enter a long equation, too.
I’m thinking about making export as SVG possible. But there’s some learning involved (on my part) so it won’t come around too soon (until at least June 2014).
If you think something should be in there but is not, let me know!
Description
A hybrid between simple sketching and professional vector drawing apps, Draw A Graph offers a range of handy line drawing tools that are simple yet powerful. The intuitive interface allows you to draw what you want to draw. Tired of repeatedly erasing out lines because they don’t look like the way you want them? Confused by the more advanced vector drawing tools? Get started with Draw A Graph! now!
Object oriented drawing – you get to change the shape and the look of the object after you put them on the screen! Check out the screenshots for some of the properties you can modify.
6 drawing tools – create straight lines, parabolas, cubic curves, arcs, freeform lines (with built-in smoothing so it doesn’t look like an earthquake victim) and text labels!
Group editing tool – select multiple objects and edit them all at once!
Grid paper – you define how big the grids are, how many smaller grids are, and how colorful they are whichever way you want! It’s like printing out your own grid paper (without actually printing, of course)!
Point snapping – you can make lines snap to other lines, vertices, and grids!
Editing tools – move the points, edit the label, rotate the shape around a center you define; duplicate the curve, undo the wrong moves, create an outline which you refine!
Note-style files – all your drawings are automatically saved. Finish up a drawing any time!
Sharing – publicize your work on Facebook, Twitter and Sina Weibo, or save it to your camera roll.
Flying Banana's Apps 
Thanks! This app is perfect for teaching economics to my A-level students but it would be awesome if I could mail the graphs as PDF once drawn … Do you think this feature may be around the corner?
I can certainly add that! Meanwhile, please put up with Save Image to Camera Roll for now.
Hi I think this is great to sketch drawings on site,what would be great would to have a zoom on the whole drawing, it would just add that extra detail that a bit hard on one scale.
Hi,
Your application is great.
I have a suggestion, Omni had a similar application called GraphSkecther.
https://github.com/graphsketcher/GraphSketcher
It is now Open Source, why don’t you assist improving it?
It’s really amazing.
Thank You.
Love the app !
The ability to add arrows/arrow heads and zoom in to add smaller detail would be great ! At the moment it is very difficult and time consuming
Hola, tienen una version premium?
Hi,
Have you looked at GraphSketcher?
Thank You.
I like this app and want to use it with visuakly impaired students. would love to have greater control of the contrast between the background and the grid, and the width of the gridlines, as well as the width of the drawing lines. Just some thoughts! I think it has great potential for the visually impaired
Hi!
Currently, the background colour and grid colour can be changed in the settings (per drawing and for all the future drawings). The default grid colour is semi-transparent, but when you make it opaque it might give you the desired effect.
Similarly, line width can be adjusted in line settings on the top toolbar (the somewhat misleasing magnifying glass icon – I’m changing it in the upcoming update).
It’s very exciting to know the app is being used for a good cause!
Cheers
Flying Banana
I am happy to have finally found such a simple foundation diagram drawing app. When I save to Camera Roll, I get the watermarked name of the app. Am I missing something? All I want is the simple foundation sketch I have drawn. The graph is removed, if desired, from the saved picture, but does any watermark have to be there? Not appropriate for including on a CA WDO Report that way, of course. Perfect for my purpose as is without the watermark. Thanks!
How do I change the color of the line???
I like all the features. Smooth flow and looks nice. Just can’t use without a way to zoom. I use several vector apps and can get around fairly quickly but only if I can zoom. I don’t know how anyone could create a drawing without it? Please add so we can use app. I spent over an hour looking for it. I never saw a graphic app without it so I thought I was seeing things😉
Is there an update so I can continue using this. App everyday for work. It’s not compatible with the new iOS 11. It won’t open I hope it can be fixed ASAP. Or if there’s a new app to download that works