In this podcast episode, we explore the incredible success of Duolingo's Streaks feature, a straightforward daily lesson tracking system that has played a key role in boosting the company's valuation to $14 billion. The conversation focuses on the development of Streaks, featuring insights from over 600 A/B tests conducted in just four years. We uncover valuable lessons about user psychology and motivation, as well as the ongoing process of refining the feature. Key insights include the importance of the first seven days of user engagement, the necessity of clear communication and simple design, the strategic implementation of flexibility mechanics like streak freezes, and the significance of having a dedicated team that targets user retention rates rather than just managing individual features.
