Not very accurate

It doesnt always display your strokes or writing. Not as responsive as other paint apps I have on my iPad.

The responsiveness is even worse on my iPod touch. It temporarily freezes like it cant handle the input. Also the undo button doesnt work. I had to press it several times to get it to work on the iPad but it doesnt work at all on the iPod.

Steeldove about Paint Studio, v3.3