Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
DeepLinkDispatch - A simple, annotation-based library for making deep link handling better on Android - airbnb/DeepLinkDispatch
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
AdMob - Earn more from your mobile apps using in-app ads to generate revenue, gain actionable insights, and grow your app with easy-to-use tools.
Busuu - Join the global language learning community, take language courses to practice reading, writing, listening and speaking and learn a new language. Learn English with busuu's .
Button - Button enables smart connections between apps that drive installs, increase engagement, and facilitate mobile commerce.