“I realised last month the app hasn’t been of much use to me, in terms of learning, for a while.”
A 3,097 day streak, kept alive through a June where he missed half the days, including five in a row. Duolingo sells streak freezes and streak repairs precisely so you never have a clean reason to quit. The streak is not measuring learning. It is measuring how long the app has kept you opening it to look at ads.