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)