Homepage for first time users has multiple touchpoints for inviting

Create profile

Login with phone number

Invite friends who are not on the app yet

Homepage once you start using the app and have a few rooms

Splash screen

Find friends on Facebook

Chat room and coachmark for slides

Learning path

WIP circles on top. Stories format, with swipe to go between stories

Color detail page. You can copy color codes, see nearest Pantone color and share

The curriculum is arranged linearly as a timeline with tests interspersed in between