What future trends might we expect in the language-learning app market based on Duolingo's success over Rosetta Stone?

Rosetta Stone could have employed several strategies to maintain its market dominance. Firstly, they could have adapted to the changing market trends and technological advancements by developing a user-friendly mobile application. Secondly, they could have offered a freemium model, similar to Duolingo, where basic content is free, but users can pay for additional features or ad-free experiences. Thirdly, they could have incorporated more interactive and engaging content to make learning more enjoyable. Lastly, partnerships with educational institutions and corporations could have helped them reach a wider audience.

Global companies like Google or Apple can apply the strategies used by Duolingo in several ways. Firstly, they can make their products more accessible and user-friendly, similar to how Duolingo has a simple and engaging interface. Secondly, they can offer their services for free or at a lower cost, which is one of the main reasons for Duolingo's popularity. Lastly, they can incorporate gamification into their products to make them more engaging and fun, just like Duolingo does with its language learning app.