One thing that I love about the iPad is that I can try out lots of apps that are exceedinly cheap or free. Once I buy a program for my laptop, I feel as though I am stuck with it. I learn to make due. But at .99 to 2.99 a piece for apps, I don't feel guilty if I don't like an app and only use it for a day or two.
I made this template on the app "ArtStudio." This app has a symmetry function, which I would use often. ArtRage, which I like for many reasons, did not have a function for symmetry.