In the world of online language learning, there are basically two heavyweights: Duolingo and Babbel. Duolingo is betting on a freemium model and a strong focus on using algorithms to help you learn better, while Berlin-based Babbel is a paid service that employs hundreds of teachers. As Babbel co-founder and CEO Markus Witte announced at … Continue reading Language learning app Babbel sold 1M US subscriptions this year, moves into language travel