Doodle Bash

From BoardGameGeek:

Doodle Bash is an app-assisted drawing game. Start by adding basic shapes to your notebook, then merge them into increasingly detailed doodles for your Portfolio. When you learn a doodle, it gets shuffled in with the others, allowing it to be more easily drawn in the future! Continue drawing and merging symbols until your Notebook is full of a wide variety of doodles. Position them in clever ways to take advantage of powerful scoring synergies! -description from the designer