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렉스 (Lex)

An AI writing editor that gives feedback like an editor

Korean supportedJust sign up and useWritingProofreading
Visit official site Compare in the app

What is 렉스 (Lex)?

Lex is a distraction-free word processor where you can ask AI for feedback on wording and structure as you write. Students, authors and professionals working on essays, papers or fiction that need careful editing use it.

How to start in 5 minutes

  1. Go to lex.page and sign up.
  2. Open a blank document and start writing.
  3. When you get stuck, ask the AI for feedback or a continuation.
  4. Use the suggestions to refine and finish your piece.

Pricing

PlanPriceWhat you get
FreeFree
  • 30 AI checks/month
  • Basic models (GPT-3.5 etc.)
  • Full document editing & collaboration
Pro (Yearly)$12/mo
  • Unlimited AI checks
  • Premium models (GPT-4o, Claude)
  • Early access & iOS app
Pro (Monthly)$18/mo
  • Flexible monthly billing
  • Unlimited AI checks
  • Priority email support

Exchange rate applied: 1 USD ≈ 1490 KRW. Prices can change — check the official site.

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