Terms of Service (SwingMirror)

Last Updated: February 18, 2026

App: SwingMirror   /   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 application "SwingMirror" ("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 (Service Description)

SwingMirror is a golf swing video comparison application that enables Users to:

  • Upload and organize golf swing videos on their device
  • Compare two videos side by side with multiple viewing modes
  • Annotate videos with drawing tools (shapes and lines)
  • Detect and label swing phases
  • Control playback speed and navigate frame by frame

All video data is stored locally on the User's device. The Company does not collect, process, or store user video content.

Article 3 (Prohibited Conduct)

Users must not:

  • Violate laws, regulations, or public order and morals
  • Infringe intellectual property, privacy, reputation, or other rights of the Company or third parties
  • Reverse engineer, decompile, or disassemble the App
  • Interfere with the Service (e.g., excessive automated access)
  • Provide false information or fraudulently use accounts
  • Use the Service for purposes outside its intended scope
  • 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 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 videos, comparisons) may change at the Company's discretion.

Article 6 (User Content)

  • Users retain all rights to videos and annotations stored on their devices.
  • Since all content is stored locally, Users are solely responsible for managing and backing up their data.

Article 7 (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., RevenueCat). The Company is not liable for resulting damages unless caused by willful misconduct or gross negligence.

Article 8 (Disclaimer)

  • The Company does not warrant that the Service meets particular purposes, operates uninterrupted, or that swing analysis results are error-free.
  • SwingMirror is a video comparison and analysis tool; improvement of golf performance 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 9 (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 10 (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 11 (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 12 (Export Compliance)

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

Article 13 (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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