Case Study: Duolingo improves app engagement with Twilio Verify

Duolingo significantly improves app engagement with Twilio Verify

Duolingo wanted to add secure social sharing to its language-learning app so users could easily find and connect with friends, but it needed a reliable way to validate users first. The company turned to Twilio Verify to support contact syncing and confirm that users were who they said they were, helping unlock social features in a safe way.

With Twilio, Duolingo built a geographically agnostic verification flow using phone number checks and SMS one-time passcodes before showing users which contacts were already on Duolingo. The result was stronger app engagement: 18% of users followed and became social, the app saw 100K+ more active users per day, and learning increased by 1%.

Duolingo

Nicolas Sacheri

Product Manager