Tattoodle, a Popular Virtual Tattoo App, Driving Revenue Through Toolbars

Tattoodle, an app for creating and sharing virtual tattoos, and posting them on your profile, has gotten as popular as real tattoos over the summer. It grew from 891,000 monthly active users three months ago to 2.76 million a month ago and 4.24 million today. It added 104,000 new users just yesterday and 542,000 in the last week.