<p>Take advantage of this deal on the #1-selling language learning app.</p> <p>The post <a href="https://www.popsci.com/sponsored-content/babbel-ai-assisted-language-learning-app-lifetime-subscription-sponsored-deal/">Learn 14 languages with Babbel at this special StackSocial price</a> appeared first on <a href="https://www.popsci.com">Popular Science</a>.</p>