Achievement leveled up modal

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

Gamification badges and progress

There are posts by other learners and mini "games" that help you test your skills

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

You earn crystals as you complete lessons. You can buy more from the Shop tab

Profile and settings

First lesson complete. It shows your learning minutes and asks you to create a profile

You can join language clubs to practice with other learners

Onboarding slides with scroll animations

Drag and drop to save result to memory

Home page to article transition

Interactions in a course: drag and drop, reorder