Duolingo, the popular language learning app, is facing its slowest rate of subscriber additions since 2022, which has put the company at risk of falling from its high ranking in the Obsidian League.Are you looking for signals & alerts from pro-traders? Sign-up to Invezz Signals™ for FREE. Takes 2 mins.Despite surpassing market expectations in daily average use for the quarter ending in March, the app’s shares plummeted by 12% overnight, underscoring investor concerns about its growth trajectory. Duolingo ha ...