Terms of Service (DoorNote)

Last Updated: November 30, 2025

App: DoorNote   /   Operator: HOKKALON Inc.   /   Address: Kataoka Building 3F, 13-4 Minami 2-jo Nishi 3-chome, Chuo-ku, Sapporo, Hokkaido 060-0062, Japan   /   Contact: y-ishiba@hokkalon.com

Article 1 (Application)

These Terms of Service ("Agreement") govern the relationship between HOKKALON Inc. ("Company") and users ("Users") of the mobile / cloud service "DoorNote" ("Service" or "App"). The Agreement is concluded solely between the Company and Users; Apple Inc. and its subsidiaries are not parties. The Company alone is responsible for the App and its content, subject to the Usage Rules in the Apple Media Services Terms and Conditions and Google Play Terms of Service.

Article 2 (Registration and Account Management)

  • Some features require registration via Firebase Authentication or equivalent methods. Users must provide accurate and current information.
  • Users must safeguard their login credentials and must not transfer or lend them to third parties. The Company is not liable for damages arising from compromised credentials unless caused by the Company’s gross negligence or willful misconduct.
  • Accounts violating this Agreement may be suspended or deleted.

Article 3 (Prohibited Conduct)

Users must not:

  • Violate laws, regulations, or public order and morals
  • Commit or encourage criminal acts
  • Infringe intellectual property, privacy, reputation, or other rights of the Company, other users, or third parties
  • Reverse engineer, decompile, or disassemble the App
  • Interfere with the Service (e.g., excessive automated access)
  • Provide false information, impersonate others, or fraudulently use accounts
  • Use the Service for dating, harassment, or purposes outside intended scope (delivery/visitor messaging)
  • Solicit or promote gambling
  • Engage in any other acts deemed inappropriate by the Company

Article 4 (License)

Users receive a non-transferable, non-exclusive license to install and use the App on iOS/Android devices they own or control, subject to the Usage Rules of Apple Media Services and Google Play. Family Sharing or volume purchase programs may allow associated accounts to access the App.

Article 5 (Subscriptions and Billing)

  • Premium/Business plans are auto-renewable and renew unless canceled at least 24 hours before the next billing date.
  • Billing, cancellation, and refunds are handled by the respective app stores; the Company does not process refunds within the App.
  • Included features (e.g., number of QR forms, message retention, exports) may change at the Company’s discretion.

Article 6 (User Content)

  • Users retain copyrights to notes, images, and other content they submit. The Company may use such content as necessary to operate the Service.
  • Users are responsible for managing PIN/public settings and understand that shared content may be viewed or stored by others.

Article 7 (Advertisements)

Free plans may show ads (e.g., AdMob) if enabled. The Company does not guarantee the accuracy or legality of third-party ads.

Article 8 (Suspension and Modification)

The Company may suspend or modify the Service without prior notice for maintenance, force majeure, or failures of external services (e.g., Firebase, RevenueCat). The Company is not liable for resulting damages unless caused by willful misconduct or gross negligence.

Article 9 (Disclaimer)

  • The Company does not warrant that the Service meets particular purposes, operates uninterrupted, or that instructions/submission data are error-free.
  • DoorNote is a communication/guide tool; delivery success or outcome accuracy is not guaranteed.
  • The Company bears no liability for damages arising from use of the Service except for willful misconduct or gross negligence.
  • Maintenance and support obligations rest solely with the Company; Apple and Google bear no responsibility.

Article 10 (Termination)

The Company may suspend or terminate accounts and delete data without notice if Users violate this Agreement. The Company is not liable for resulting damages.

Article 11 (Intellectual Property)

All intellectual property rights in the App belong to the Company or rightful owners. Users must not reproduce or redistribute content without permission.

Article 12 (Product Claims and Third-Party Beneficiary)

The Company, not Apple or Google, is responsible for product liability, legal compliance, or consumer protection claims relating to the App. Apple and its subsidiaries are third-party beneficiaries of this Agreement and may enforce it against Users upon acceptance.

Article 13 (Export Compliance)

Users represent and warrant they are not located in embargoed countries or on U.S. Government restricted lists.

Article 14 (Governing Law and Jurisdiction)

This Agreement is governed by the laws of Japan. The Sapporo District Court has exclusive jurisdiction for the first instance regarding disputes arising from the Service.

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