I needed interview-style questions with open answers, AI grading that tells you what you missed, follow-up probes on weak spots, and spaced repetition to make it stick - all in one place. Anki has great scheduling but no grading. ChatGPT can grade but doesn't remember what you got wrong last week. Nothing combined all of it, so I built it.
Interview-style questions with probing follow-ups and open answers, graded the way a real interviewer would. Spaced repetition is the core — it helps you retain what you learn, understand what you got wrong, and points to your weak areas so the real interviewer doesn't.