Duolingo, possibly the most popular language learning app for phones, has finally added Chinese to its list of languages, so you can start to learn the most spoken language on the planet.
Just do not expect to get fluent with just this one app: the Duolingo course is for beginners and it will teach you 1,000 Chinese characters and it promises to get you to an upper beginner level of fluency in both reading, writing, speaking and listening.
The app teaches simplified Chinese characters and uses the Beijing dialect, … – Source