The onboarding asks you select a language and pick a daily learning goal

Achievement leveled up modal

Profile and settings

Bottom sheet for wrong answer

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

The splash screen is the logo on a green background

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

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

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

Personalizing the experience by asking questions and creating habit

Onboarding and description

Splash screen and onboarding. It asks for a preference and then directly throws you into a story

Automatic login with duolingo. Setting up profile