Korean Diary AI - Write a Korean diary. Get corrected in 5 seconds.

Hey Product Hunt! 👋 I built Korean Diary AI because I was frustrated waiting 24+ hours on HiNative for feedback on my Korean writing. By the time the correction arrived, I'd already lost the context — and the motivation. So I built something different: write a Korean diary entry, get AI corrections on grammar, vocabulary, and naturalness in under 5 seconds. We just finished a private beta with learners from the US, Malaysia, and Korea. Two beta users liked it enough to upgrade to paid within the first week — that kind of early validation kept us going. If you're learning Korean (or know someone who is), we'd love your feedback. Try it free → https://kdiaryai.com Happy to answer any questions below! 🙏