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

You can tap the country flag on top to add more languages and switch between them

You have 5 lives. When you run out you can wait, practice, or refill by spending crystals

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

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

During login, it asks for your age, name, email and password

Bottom sheet for wrong answer

Gamification badges and progress

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

Fine tuning transitions, pop up for out of sessions

Add to cart and checkout

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

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