Tandem is a language exchange app on iOS and Android that connects language learners with native speakers. Members can search for language exchange partners to talk to by either text or voice chat. As of July 2020, the app supports 300 languages including 20 sign languages, 20 indigenous languages, and six fictional ones such as Mandalorian or Klingon. Tandem was founded in Hannover in 2014 by Arnd Aschentrup, Tobias Dickmeis, and Matthias Kleimann. Now headquartered in Berlin, Tandem launched its mobile app on iOS in 2015, followed by Android in 2016. Prior to Tandem, Aschentrup, Dickmeis, and Kleimann founded Vive, a members-only mobile video chat community. More information...
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