Terms of Service

Effective Date: August 3, 2026 (v5.3)

1. Purpose

These Terms govern the use of the D.off service ("Service") provided by Elpis Studio ("Company"). These Terms of Service, together with our Privacy Policy, constitute the End User License Agreement (EULA) for the D.off application.

2. Service Description

The Service provides the following features:

• App usage time tracking and management
• Daily/weekly quota settings
• Lock screen and unlock rituals
• Sleep lock
• Usage statistics and reports
• Optional Strict Mode for users who want stronger commitment device behavior (Premium only)

3. User Obligations

• Do not impersonate others
• Do not use the Service for illegal purposes
• Comply with applicable laws
• Do not attempt to circumvent self-control mechanisms by reverse-engineering, modifying, or repackaging the Service

4. Premium Subscription

• Premium is billed through Google Play (Android) or Apple App Store (iOS)
• Subscriptions auto-renew; cancel at least 24 hours before renewal
• Refunds follow Google Play / Apple App Store refund policies

5. Self-Control Commitment Mechanisms

D.off is a commitment device. By using the Service, you acknowledge and agree to the following enforcement mechanisms:

• Quota lock: Daily/weekly time limits cannot be increased on weekdays. Increases take effect after a 24-hour pending window or via the once-per-week emergency pass.
• Sunday-only changes: Quota and protected settings can only be reduced or restructured on Sundays (or your group's first day).
• 7-day re-registration cooldown: If you delete your account and create a new one on the same device, the new account begins with a 7-day cooldown during which all blocking remains active. This is enforced via Google Play Integrity (Android) and Apple DeviceCheck (iOS) device attestation, as detailed in our Privacy Policy.
• Strict Mode (Premium opt-in): When enabled, Strict Mode can only be turned off on Sundays. Quota changes are blocked on weekdays. Once you opt in, this is binding for the duration of the week.

You agree that these mechanisms are intentional features, not defects. However, your right of withdrawal and your right to claim a refund under Article 17 of the Korean E-Commerce Act are not limited by this section.

6. Disclaimer

The Company does not guarantee specific results from using the Service. The Service is provided "as is" and the Company makes no warranties regarding fitness for any particular purpose, including therapeutic, medical, or behavioral health outcomes. The Service is not a substitute for professional mental health care.

7. Limitation of Liability

The Company remains liable, to the extent provided by law, for damages caused by intent or gross negligence, damages arising from infringement of personal data, and any other damages for which liability cannot be limited under applicable law. For all other damages caused by ordinary negligence, the Company's aggregate liability arising out of or relating to the Service shall not exceed the greater of (a) the amount you paid the Company in the 12 months preceding the claim, or (b) KRW 100,000 (or USD 100).

8. Changes to Terms

The Company may update these Terms and will notify users through the app at least 30 days before material changes take effect.

9. Governing Law

These Terms are governed by the laws of the Republic of Korea. Under Article 36 of the Korean Act on Consumer Protection in Electronic Commerce, the competent court is the district court having jurisdiction over the user's address (or place of residence) at the time the suit is filed.

10. Contact

Inquiries: chrislee.krh@gmail.com

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