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

Duolingo
Learn Spanish, French and more
You earn crystals as you complete lessons. You can buy more from the Shop tab
More interactions from‏‏‎ ‎
Duolingo
Profile and settings
You can tap the country flag on top to add more languages and switch between them
Gamification badges and progress
Bottom sheet for wrong answer
During login, it asks for your age, name, email and password
It quizzes you with audio and visual questions to make you understand and to increase recall
Asks you to select a daily goal and then notification permissions
The onboarding asks you select a language and pick a daily learning goal