Korean Diary AI
AI correction tool for Korean writing practice
Korean learners have plenty of vocabulary apps and grammar quizzes, but almost nothing helps them with the most important skill: actually writing in Korean and getting real feedback.
So I built Korean Diary AI — you write a diary entry in Korean, and the AI gives you natural, human-like corrections with explanations. No gamification, no drills. Just writing and learning.
**What I launched with:**
- Free tier (3 corrections/month)
- Pro plan ($9/mo, unlimited corrections)
- Google OAuth + email signup
- Launched on Product Hunt on March 28
**Biggest lesson so far:** Getting your first users outside your existing network is brutally hard. Working on that now.
Would love feedback from anyone who's built language-learning tools or solo-launched a SaaS. Happy to answer questions.
→ https://www.kdiaryai.com
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