Is Duolingo Enough to Learn a Language?
On its own, no. But quitting is usually the wrong move. What Duolingo does well, where its evidence stops, and what to add at each level, free options first.
Useful notes for real language learning.
Regional language guides, practical learning ideas, product notes, and clear explanations written for learners who care about the details.
How Many New Words Should You Learn Per Day?
Every new word you start learning schedules a tail of future reviews. The sustainable daily number comes from your review capacity, not your ambition. Here is the math.