I built something similar for Android called Pixmap, which is a live collaborative drawing app. It was one of my first side projects! It's still online, only co

I built something similar for Android called Pixmap, which is a live collaborative drawing app. It was one of my first side projects! It's still online, only costs me like $25/mo to run, so... You can also create private rooms etc. There is also a competitive drawing aspect where you're shown an image and have to redraw it, and a matchmaking system with ranking...