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Terms of Service

Last updated: April 15, 2026

Article 1 (Application)

These Terms govern the use of Tsumugu (the "App"). By registering to use the App, you agree to be bound by these Terms.

Article 2 (Eligibility)

  1. This App is intended for business purposes.
  2. Users must be 18 years or older.
  3. Users aged 18–19 must obtain consent from a legal guardian.

Article 3 (Services)

The App provides:

  1. Business card OCR scanning and digitization using AI
  2. Contact management (groups, tags, team sharing)
  3. Meeting scheduling via Google Calendar and Zoom integration
  4. AI-powered follow-up email generation
  5. Digital business card creation and sharing

Article 4 (Account)

  1. Users register using a Google account.
  2. Users are responsible for managing their account information.
  3. Transfer or lending of accounts to third parties is prohibited.
  4. The operator may suspend accounts upon confirmed misuse.

Article 5 (Paid Plans)

  1. The App offers Free and Premium plans. Features and pricing are displayed in the App.
  2. Billing and cancellation are processed through the Apple App Store or Google Play Store.
  3. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period.
  4. Refunds are subject to Apple or Google store policies.
  5. Plan changes may result in contact limit restrictions.

Article 6 (Prohibited Activities)

  1. Violations of laws or regulations
  2. Unauthorized collection or use of personal information
  3. Placing excessive load on the App's servers
  4. Reverse engineering or decompiling the App
  5. Sending spam emails in violation of applicable laws
  6. Registering false information
  7. Any illegal activity or activity against public order

Article 7 (Email Features)

  1. When using group email features, users must obtain prior consent from recipients, not send mass commercial emails, and comply with all applicable laws.
  2. The operator may suspend email features upon confirmed violations.
  3. Users bear legal responsibility for any misuse of email features.

Article 8 (Third-Party Personal Data)

  1. When scanning business cards, users handle personal information of the card owner.
  2. Users may use card information for business communication based on the custom of exchanging cards.
  3. Users shall not use contact information beyond the purposes of this App.
  4. Users are responsible for the lawfulness of sharing contacts via team features.
  5. Users must promptly respond to requests for disclosure or deletion from contact owners.

Article 9 (AI Features)

  1. AI features use AI services.
  2. The accuracy of AI output is not guaranteed.
  3. Users must review AI-generated email drafts before sending.
  4. The operator is not liable for damages from AI features except in cases of willful misconduct or gross negligence.
  5. Business card images and contact data are transmitted to AI servers (USA) for processing.

Article 10 (Intellectual Property)

  1. Intellectual property rights to the App belong to the operator or its licensors.
  2. Rights to user-submitted data belong to the user or the data owner.
  3. The operator has the right to use user data to the extent necessary for service provision and improvement.

Article 11 (Disclaimer)

  1. OCR accuracy is not guaranteed.
  2. The operator is not responsible for disruptions caused by external services (Google, Zoom, etc.).
  3. The operator is not responsible for service interruptions due to network conditions.
  4. The operator does not intervene in disputes between users.
  5. Liability is limited to one month's subscription fee, except in cases of willful misconduct or gross negligence.

Article 12 (Changes to Terms)

  1. The operator may modify these Terms when changes serve users' interests or are reasonable.
  2. Changes will be communicated via in-app notification or email at least 14 days before taking effect.
  3. Continued use after the effective date constitutes acceptance.

Article 13 (Governing Law and Jurisdiction)

These Terms are governed by Japanese law, with the Naha District Court as the court of exclusive jurisdiction.