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The Quizduell (Quiz Clash) App

One of the most popular quiz apps is Quiz Duell - or Quiz Clash in English - and designed for smart phones or tablets. It's available in 13 countries - and has been downloaded millions of times. The app was developed by a trio from Sweden - and as its popularity rages on here in Germany we thought we'd find out why Germans are so obsessed with the quiz show format.

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