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Terms of Service

Last updated: April 29, 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.

Article 14 (App Store Additional Terms — Apple Required Minimum Terms)

The following terms apply to App Store users in addition to the above Terms of Service.

  1. Acknowledgement: This End User License Agreement ("EULA") is concluded between you and the operator (the "Licensor") only, and not with Apple Inc. ("Apple"). The Licensor, not Apple, is solely responsible for the App and its content.
  2. Scope of License: The license granted is a non-transferable license to use the App on any Apple-branded products that you own or control, and as permitted by the Usage Rules set forth in the Apple Media Services Terms and Conditions.
  3. Maintenance and Support: The Licensor is solely responsible for providing any maintenance and support services with respect to the App. Apple has no obligation whatsoever to furnish any maintenance and support services with respect to the App.
  4. Warranty: The Licensor is solely responsible for any product warranties, whether express or implied by law, to the extent not effectively disclaimed. In the event of any failure of the App to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price for the App to you (if applicable). To the maximum extent permitted by applicable law, Apple will have no other warranty obligation whatsoever with respect to the App, and any other claims, losses, liabilities, damages, costs or expenses attributable to any failure to conform to any warranty will be the Licensor's sole responsibility.
  5. Product Claims: The Licensor, not Apple, is responsible for addressing any claims relating to the App or your possession and/or use of the App, including but not limited to: (i) product liability claims; (ii) any claim that the App fails to conform to any applicable legal or regulatory requirement; and (iii) claims arising under consumer protection, privacy, or similar legislation.
  6. Intellectual Property Rights: In the event of any third-party claim that the App or your possession and use of the App infringes that third party's intellectual property rights, the Licensor, not Apple, will be solely responsible for the investigation, defense, settlement and discharge of any such claim.
  7. Legal Compliance: You represent and warrant that (i) you are not located in a country that is subject to a U.S. Government embargo, or that has been designated by the U.S. Government as a "terrorist supporting" country; and (ii) you are not listed on any U.S. Government list of prohibited or restricted parties.
  8. Developer Name and Contact: Licensor: tsumugu. Contact: in-app contact form or https://tsumugu.tech/legal/support.php.
  9. Third-Party Terms of Agreement: You must comply with applicable third-party terms of agreement when using the App.
  10. Third-Party Beneficiary: You acknowledge and agree that Apple, and Apple's subsidiaries, are third-party beneficiaries of this EULA, and that, upon your acceptance of the terms and conditions of this EULA, Apple will have the right (and will be deemed to have accepted the right) to enforce this EULA against you as a third-party beneficiary thereof.