I love to use this with one of my school aged clients. We practice writing spelling words, and she loves to pick a color to write in (one only, otherwise we would be picking colors ALL day!)
This is a great app not only for free-hand drawing, but for coloring/worksheets! Yes. You can import any picture from your photo album and bam! Boring old sheet because super fun and exciting with colors and stamps. I use Dropbox to store all my exciting papers.
What are you waiting for. "Glow" and download it!