A great creative exercise is just to scribble and see what comes out. This alone can be satisfying – therapeutic even. There's nothing like a good scribble to help recover from a bad day.

Scribble from Zintin is an art app reminiscent of MacPaint ... you can also change the background color. The minimal tool set is accessible at the bottom of the screen, ...

Another model, the Scribble Pen Stylus for tablets, lasts up to 15 hours. As Mashable and CNET point out, there was a bit of controversy surrounding the technology when it first surfaced back in 2014.

Scribble was added in iPadOS 14 for any iPad that supports the original or second-generation Apple ... making it easier to see the different control options even on a multicolored background.