In early 2019, the owl was redrawn throughout the app to have a sharper style.

Learn, Lives, Clubs, Shops. The Profile tab is revealed after you login or create an account

It quizzes you with audio and visual questions to make you understand and to increase recall.

Hit the flag icon on the top left of the homepage to reveal options.

You know your product's gamification is doing well (or at least being noticed) when there are memes about your mascot being pushy. 😄

Daily streak after you complete every lesson, 5 lives that get depleted for every wrong answer you give, gems to unlock additional capabilities

For certain activities, you unlock Achievement Badges. Some of these are Inner Circle, Sharpshooter, Big Spender, Overachiever, Overtime, Friendlt, Wildfire and Champion.

Each badge has 3 levels that you progressively unlock.

No ads, no interruptions.

Save lessons for offline.

1 free streak repair per month.

Support fre education.

Choose a plan for after your 7-day free trial.

Pick a goal: Casual (5 minutes a day), Regular (10 minutes a day), Serious (15 minutes a day), Insane (20 minutes a day)

"Duolingo needs to send you notifications: The app will notify you when you are in danger of missing your goal"

Clubs are a social area where you can do certain challenges and interact with the community. As of early May 2019, the feature is being A/B tested against Leaderboards and might be phased out. Users are making petitions to save the feature.

"Join over 300 million learners on Duolingo, the most popular way to learn languages! It’s free, fun and effective. The secret? Duolingo feels like a game and makes sure you stay motivated. Over 30 languages to choose from - all completely free! Duolingo is changing the way people learn languages using advanced technology to personalize every lesson for you. Practice reading, writing, speaking, listening and conversation with intelligent Chatbots. Track your progress, earn rewards, and join the world’s largest community of language learners."

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After you complete your first lesson, it asks you to create a profile. It asks for your age, name, email and password.

The top level tabs have roughly stayed the same while the visual style has been tweaked to be cleaner and the owl has been redrawn.

The Clubs feature is being A/B tested against the Leaderboards tab (and some users aren't happy about it: Petition to save Clubs)