HiWord.AI: Learn English 10x Faster with AI Spaced Repetition

Hey Product Hunt! 👋 I built HiWord.AI because I was frustrated with forgetting English vocabulary. I'd study 50 words, and the next day remember maybe 12. Sound familiar? The science is clear: the forgetting curve is brutal, but spaced repetition can beat it. The problem? Setting up Anki decks is tedious, and apps like Duolingo don't focus enough on vocabulary depth. So I built HiWord.AI — a free, open-source PWA that combines: 🧠 SM-2 spaced repetition (the algorithm decides when you review each word) 🎙️ AI pronunciation scoring (Shadow Reading with instant feedback) 🗣️ AI Talk (practice real conversations — ordering coffee, job interviews, doctor visits) 📖 AI Reading (after learning new words, AI writes you a story using them in context) 🖱️ Chrome Extension (double-click any word on any webpage → save it → auto-review) It's completely free, no ads, works offline as a PWA, and it's open source. I'd love your feedback! What features matter most to you when learning vocabulary? 🦊