HelloPaint is a collaborative drawing app (from the makers of iScribble and MalMal) I found a few years ago trying to find alternatives to Drawpile. This year I decided to revisit it! I don't have any public boards (nor have I joined any) but I did post some doodles from a board I'm currently doing with a friend. These may eventually come here in a collection and/or in a more polished form.
My HelloPaint profile is here!
Sucks there's no copy/paste or selection movement because there's something I drew too low. Oh well, I'll just have to port it to another art program.