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

Gamification badges and progress

Duolingo Plus lets you download lessons offline and removes ad. You can start with a 7 day trial

Bottom sheet for wrong answer

Profile and settings

The splash screen is the logo on a green background

Asks you to select a daily goal and then notification permissions

You can join language clubs to practice with other learners

Add friends to compete with. You can search by name or find them from facebook

Swiping between day detail pages

Top level navigation

Browsing and adding sticker sets

Class landing page