In what specific ways can AI-driven apps or tutors assist learners in acquiring new vocabulary, correcting grammar, and tracking performance?

AI helps by making lessons more personalized. Instead of a one-size-fits-all course, you get feedback tailored to your progress. For example, I was struggling with formal emails in business english, and the AI tool I used started offering targeted exercises. It noticed my weak areas and focused on improving them, which made a real difference in how confident I felt.