Free vs. paid
        
The app has two versions:
free and paid. Find out the differences.
Getting Started
        
Learn how the shapes work and how to view them.
User's Guide
        
Screenshots are from the paid version, but the concepts are the same
FAQs
        
Why it's useful, how to use it, good-to-know tips, and much more
YouTube
        
The Building Blocks of Rock channel.
App Store
        
See the app on the App Store (iPhone, iPad, Mac OS)
Google Play
        
See the app on Google Play (Android phones & tablets)