Most JLPT practice hands you an answer key and nothing else. Hinode explains every one of its 17,000+ questions (N5 to N1) in plain English, so each mistake actually teaches you something. Take timed mock tests, then retry what you got wrong for free until it sticks. Stats reveal your weak spots; a leaderboard and achievements keep you going. Start with 300 free questions plus free daily coins, and browse the full kanji list, vocab and grammar notes free, no account needed.