Drawpile

Drawpile is an interesting tool that lets you use your imagination and draws it into a blank canvas shared with your friends. The app lets many people access the same canvas, so everyone can draw it together in real time.

Below the drawing area, there is a chat where you can talk to other users and decide what you can draw together. It includes a series of customizable brushes and settings that provide tools to draw something you can imagine.

You can add multiple layers if necessary, and change other people's changes you can also save the steps you made, so that you can see them later or show them to your other friends. This is a really useful option when your friend wants to know how you made some changes to the project.