There's an App for that!

I came across this article about the "Best Apps for Designers," and I thought I'd share.  I think the Handy Level looks super cool!  I also have this app on my iPhone: Behr ColorSmart App.  I only wish you could take pictures of your own rooms and try out paint colors.  You can save paint colors you like, and save the pre-loaded rooms with your colors.
Behr
I've also used the Sherwin Williams app, but had trouble saving colors when I was using an older Android.  But since I buy the Behr paint, I opted for the Behr app.