In the Android version, all I think is really missing so I can use this program instead of another (sketchbook) is the selection tool.
latest News I got here is from 2014 witch admin says it should be implemented later because the performance of a tablet does not allow it.

it's 2018, a Samsung Galaxy tab S3 is so powerful.

I would really like to use Artrage since I got used to it very much, but since this useful tool is missing I have to change application for drawing.