In three years, the turnover of WordDive Ltd has increased a whopping 560% from 140 000 euros to 930 000 euros, making WordDive one of the leading digital language learning companies in Scandinavia. The engine of growth is the English prep course for high school seniors launched in 2014. In just two years, it has become the unquestionable market leader in Finland, with one in four Finnish high school seniors taking the course. Now compare this to Germany, where…