4 articles
Duolingo's maintenance break on 21 October logged people out and reset streaks. We read 185 reviews in seven stores: when it hit, who lost a streak, whether a freeze helped, and whether the update was to blame.
Duolingo Chess complaints in 178 reviews: Oscar's nonstop commentary, an Elo that drops 20 and rises 3, lag that loses games, and why some can't find chess at all.
Ads that promise a free app, a trial that flips into charges people say they never expected, prices higher than advertised, and lessons too hard for true beginners: what Learna 1-star reviews actually say about whether the AI English tutor is legit and worth paying for.
Cancellations that fail, charges after the trial, uneven content: 5 kids learning apps ranked by 1-star reviews. ABCmouse, Khan Academy Kids, Duolingo ABC, Homer, Outschool.
Negative reviews of Duolingo, Khan Academy, Coursera, and Quizlet analyzed: the biggest complaints from students, teachers, and parents in 2026.