Anniversary flash Sale
01 Hour 31 Min 55 Sec

The smarter way to research best practices and get unstuck

Or Learn more

Duolingo
Remove Duolingo filter
Duolingo logo

Duolingo screenshots

Duolingo is a super-popular language learning app that boasts over 200 million users. While most people use it for free, it has to balance promoting in-app purchases, a subscription, and ads.