Very convenient

When I have this app, I usually dont need to have my graphing calculator with me which is very convenient because graphing calculators can be somewhat bulky and it saves you room in your backpack. Plus it is very easy to move around the screen to look at different parts of a graph, which is more of a hassle on a graphing calc. Finally, the screen doesnt lag when you move the screen around, which can happen in other apps that Ive used.

Donut Smack about Quick Graph, v2.5.3