Hey Product Hunt 👋 I built this because of a problem I had myself. I'd studied English for years and knew thousands of words — but every time I sat down to write, the same 200 words came out. The rest were somewhere in my head, just not reachable. The reason, I think, is that almost everything I used tested recognition. A flashcard shows you a word and asks if you know it. You say yes. You're never asked to prove it. Sentence Monster flips that. You get a short sentence to write using a target word, and feedback on what you actually produced. Words you miss or use awkwardly come back later — the schedule comes from your failures, not from a fixed interval. 15 languages, free to try. The sentence-picking algorithm is the part I'd most like feedback on: if you try it, I'd love to know whether the sentences felt too easy, too hard, or just off. Thanks for taking a look 🙏

Sentence Monster

Learn vocabulary by writing sentences, not flipping cards

Learn vocabulary by writing sentences, not flipping cards