Ibis paint was my main mobile art app for quick doodles & editing. Overall usability is great, but I'm docking my score due to intrusive ads in the recent updates / the ones that pop-up after you exit out of a drawing. I'm aware you can pay to remove them, but for what the app gives + me not using this for my finished work its not worth paying the price for me. Plus, I don't think running ads that make using the app clunkier is the way to encourage buying the 'full' version, nor a membership