Duolingo, the free language-learning service, is releasing an app called Test Center that lets users take a standardized test on their mobile device and potentially earn certification for their ...
Duolingo, the free language learning service, today announced the launch of Test Center, its digital language certification program. The company is launching this service with an English Proficiency ...
Michael is a born Texan and a former graphic designer. He's been covering technology in general and Android in particular since 2011. His interests include folk music, football, science fiction, and ...
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