KOTORI

Multilingual translation LINE bot

Run multilingual LINE groups stress-free with the KOTORI Pro plan.

The KOTORI Pro Plan is the paid plan for our LINE bot that auto-translates group messages with contextual awareness. Use it confidently for work or personal chats without worrying about free-tier limits.

Price: JPY 380 / month (tax included) per group

Best for: business chats in multinational teams, international student or friend groups, and cross-cultural communities

Purchase Pro Plan

By purchasing via the button below, you agree to the following terms.
・Terms of Service
・Privacy Policy

What you get with Pro

  • Instantly translate group messages into up to five registered languages
  • Context-aware, natural translations using recent conversation history
  • Higher rate limits than Free for virtually unlimited everyday use
  • Access to the wide language coverage provided by the underlying LLM
  • Works for global business teams and casual international groups alike

Free vs. Pro

Item Free Plan Pro Plan
Price Free JPY 380 / month (tax included) per group
Translation volume 50 messages / month 8,000 messages / month

Pricing & billing conditions

  • Plan name: KOTORI - AI Translation/การแปล Pro Plan
  • Price: JPY 380 / month (tax included) per group
  • Billing: paid online by one representative (auto-renew)
  • Charge timing: pay one month at checkout; auto-renews monthly thereafter
  • Cancellation: mention the bot in your group and send the cancel command anytime; Pro stays active until the paid period ends

How to get started

  1. Invite the official KOTORI LINE bot to your target group.
  2. Try translation behavior on the Free plan.
  3. Click the “Purchase Pro Plan” button on this page to go to checkout and pay by credit card.
  4. After payment, the group’s Pro Plan activates within a few minutes and remains active for the billing period.
  5. To cancel, mention the bot in the group and send the cancel command; you can keep using Pro until the paid period ends.

Notes and terms

  • Pro is contracted per LINE group. Each group requires its own subscription.
  • If the bot is removed from a group, that group’s Pro plan is auto-canceled; no refunds for the remaining period.
  • No refunds when you cancel; Pro remains available until the end of the paid period.
  • Service details, pricing, and supported languages may change without notice.
  • Temporary outages may occur due to network issues or external services (LINE, LLM, Stripe).
  • For translation quality and context, recent group messages are stored and a portion may be sent to external AI models (Gemini).

See the full details below.
・Terms of Service
・Privacy Policy

Consumer Information