Ciao 👋 if you're a free Duolingo user, then you may have noticed a change to the way you can complete your daily lessons it rolled out to a lot of users some time ago, and recently it's hit even more devices the change affects how much time you can realistically spend on Duolingo each day it's upset a lot of users 😞 but Duolingo has a very clear reason for doing it... so what's happened? 🤔 it all centres around one of Duolingo's most controversial features: the heart system ❤️ for free users,...