Terms of Use

Effective Date: October 19, 2026

By using Nihongo Buddy, you agree to the following terms:

• You are responsible for the content you submit to the LINE bot.
• You agree not to use the service for illegal, harmful, or abusive purposes.
• Memory is off by default. If your group turns it on and accepts the warning, Nihongo Buddy will store an encrypted rolling history of up to 10 recent messages in Firestore. The stored memory cannot be read directly in Firestore by humans, including Nihongo Buddy admins. It is decrypted by the app only when building the OpenAI request.
• If your group turns Memory off, stored memory for that group will be cleared and future conversation replies will not use stored message history.
• We reserve the right to limit or terminate your access to the bot if misuse or abuse is detected.
• Credits are non-refundable and expire if not used within a reasonable period, determined at our discretion.
• We may update these terms at any time. Continued use of the service constitutes your acceptance of the new terms.

For Enjoy Nihongo Buddy!