Language learning app Duolingo has apologised after a German lesson appeared to teach tutees a sentence referring to ...

Duolingo has been forced to apologise after JK Rowling was described as "mean" in one of its translation exercises.

Duolingo, the world’s most popular language-learning app with over 34 million daily active users, has apologised after JK Rowling was described as ‘mean’ in one of its German lessons.