Terms of Service

Effective Date: June 10, 2026

Article 1. Purpose

These Terms of Service ("Terms") set forth the conditions for use of the services ("Service") provided by UKNONG ("Company"), and define the rights, obligations, and responsibilities between the Company and users.

Article 2. Definitions

• "User" means any person who agrees to these Terms and uses the Service.
• "Member" means a User who has registered an account by providing personal information to the Company and may continuously use the Service.
• "User Content" means all information and materials that a User uploads, sends, stores, or links through the Service, including email content, attachments, playlists, favorites, play history, and profile pictures.

Article 3. Effectiveness and Modification of Terms

• ① These Terms become effective when posted on the Service.
• ② The Company may amend these Terms within the scope permitted by applicable laws, including the Act on the Regulation of Terms and Conditions and the Information and Communications Network Act.
• ③ The Company will post the amended Terms within the Service at least 7 days before the effective date, specifying the effective date and reasons. For changes that are adverse to users or material, notice will be provided at least 30 days in advance through at least one of the following methods, as the Company may select: clear in-service notification (such as an announcement screen shown at login or a posted notice page), or email sent to the address associated with the account.
• ④ If the Company clearly notifies users along with a statement that "failure to express objection by the effective date will be deemed consent," users who do not express objection within that period shall be deemed to have consented to the amendment.
• ⑤ Users who do not agree to the amended Terms may discontinue use of the Service and delete their account. After the effective date, the Company may decline to provide the Service to users who have not consented.

Article 4. Scope of Services

The Company provides the following services:

• UKNONG Accounts — Registration and authentication via email or social login (Google, Apple)
• UKNONG Music — Lyrics search and viewing, play history, music library features (favorites, playlists, artist follows), and cross-device playback sync
• UKNONG Mail — Email sending, receiving, storage, and management
• UKNONG Net — Ad and tracker blocking service (paid plans)
• UKNONG Support — Help center, inquiry handling, live chat, and AI assistant
• Other services to which these Terms and separately posted terms or policies apply

Paid services prevail: Paid services such as UKNONG Net are governed by the separate UKNONG Net Paid Service Terms, which prevail over these Terms where they conflict regarding paid services. Provisions of these Terms premised on free provision (e.g., Article 12(1), Article 15(5)) apply to paid services only to the extent not inconsistent with their nature.

Article 5. Eligibility

• ① The Service is available only to individuals aged 14 or older.
• ② The Company verifies that the user is 14 or older through a self-confirmation process at registration. Registration is blocked when the provided information indicates the user is under 14.
• ③ If a child under 14 is later found to have registered, the Company will delete the account and related personal information without delay.
• ④ The Company does not knowingly collect personal information from children under 14 and does not provide this Service to children under 14.

Article 6. Registration and Account

• ① Users may register for the Service using an email address or social account.
• ② Users must provide accurate information and must not register using another person's identity.
• ③ Users are responsible for maintaining the security of their account credentials and may not share, transfer, or pledge their account to third parties without the Company's prior consent.
• ④ Users must immediately notify the Company if they suspect unauthorized use of their account.

Article 7. User Obligations

Users shall not engage in the following activities:

• Providing false information or impersonating another person
• Interfering with the normal operation of the Service
• Using the Service for illegal purposes or in violation of applicable laws
• Unauthorized data collection using automated means (bots, crawlers, scrapers, etc.)
• Breaching the security of the Service or exploiting vulnerabilities
• Sending spam, phishing, malware, or bulk emails through the Mail service
• Infringing the intellectual property, reputation, or privacy of the Company or third parties
• Any other conduct that violates these Terms or applicable laws

Article 8. Mail Service

• ① The Mail service is provided to users approved by the Company.
• ② Each user is allocated mailbox storage; email reception may be restricted if the quota is exceeded. Large attachments are uploaded via link sharing and count toward the user's storage quota.
• ③ Users are solely responsible for the content of emails they send and for any consequences arising from such content.
• ④ The Company does not use user email content for advertising, marketing, or third-party sharing without the user's intent. The Company may process such content within the scope of any separate, explicit consent provided by the user, and may also access email content through automated technical processing or to the minimum extent necessary in the following cases:
  1. Automated processing essential for service provision (sending/receiving, display, search, dark-mode conversion, snippet generation, read processing, etc.)
  2. Detection and blocking of security threats such as spam, phishing, and malware
  3. Access to metadata (headers, size, sender/recipient) for system fault diagnosis and recovery; access to message body is performed only with user consent or under legal authority
  4. Cooperation with lawful requests from law enforcement, courts, or administrative authorities
• ⑤ Users may connect external email accounts (IMAP/SMTP) to manage emails in one place. External account credentials are stored encrypted and are deleted without undue delay upon disconnection. Residual copies retained for technical reasons such as backups will be destroyed within a reasonable period. Users are responsible for complying with the terms of any connected external provider.
• ⑥ When the read receipt feature is used, recipients may be notified that the sender has requested a read receipt.

Article 9. User Content and Operational License

• ① Copyright and other rights to User Content belong to the User.
• ② The User grants the Company a non-exclusive, worldwide, royalty-free license to copy, store, transmit, modify, display, create derivative works of, and perform equivalent or ancillary acts on User Content to the extent reasonably necessary to provide, operate, maintain, improve, back up, restore, secure, address failures of, transmit, display, search, translate, summarize, index, detect spam/malware in, convert format (resolution, dark mode, etc.) for, and deliver to the User or User-designated recipients the Service.
• ③ The above license terminates immediately when the User deletes the content or the account. Exceptions apply where retention is required by law or where immediate deletion is technically impossible due to backup processes.
• ④ The Company does not use User Content for advertising, commercial exploitation, or third-party sharing unrelated to the User's intent, and does not use it as training data for artificial intelligence (AI) models. However, statistical information that is pseudonymized or anonymized so as not to identify the User may be used for service operation and public disclosure, and additional processing may occur within the scope of any separate consent provided by the User.

Article 10. Temporary Measures and Removal of Content

The Company may temporarily block or remove the display of User Content in the following cases:

• Upon receipt of a rights infringement claim or a temporary measure request under Articles 44-2 and 44-3 of the Information and Communications Network Act
• Where the content is clearly illegal (child sexual abuse material, digital sexual offense material, defamation, etc.)
• Where bulk sending, spam, or phishing through the Mail service is confirmed
• Upon lawful requests from courts, law enforcement, or administrative authorities

The Company will notify the User of the temporary measure or removal and its reasons, and the User may file an objection.

Article 11. Intellectual Property

All intellectual property rights in the software, design, logos, trademarks, domains, and content included in the Service belong to the Company or the rightful owner. Users may not reproduce, distribute, transmit, or commercially exploit them without the Company's prior consent.

Article 12. Modification, Suspension, and Termination of Service

• ① The Service is provided free of charge, and the Company does not guarantee any particular uptime, response time, or data retention period.
• ② The Company may modify or temporarily suspend the Service as necessary for operational or technical reasons. Temporary interruptions due to maintenance, updates, or external infrastructure (cloud, CDN, external SMTP, etc.) failures may be unavoidable.
• ③ The Company shall not be liable for service interruptions caused by force majeure events.
• ④ The Company may operate data backup and recovery procedures in accordance with its operational policy but does not guarantee the integrity or recoverability of backup data. Users are encouraged to periodically maintain their own external backups.
• ⑤ If the Company terminates the Service, it will, where reasonably practicable, provide notice at least 30 days in advance through in-service notification or the email associated with the account, and use reasonable efforts to allow users to download their data. This does not apply where immediate termination is required due to force majeure, legal compliance, or urgent security reasons. Remaining data will be destroyed in accordance with these Terms and the Privacy Policy.

Article 13. Account Restriction, Suspension, and Deletion

• ① If a User violates these Terms or applicable laws, the Company may take the following actions depending on the severity of the violation:
  1. Warning or temporary feature restriction
  2. Temporary suspension of use (for a reasonable period commensurate with the severity of the violation, typically up to 90 days)
  3. Permanent suspension and account deletion
• ② Before such actions, the Company will notify the User of the violation, the proposed action, and the procedure for objection, and will provide a reasonable opportunity to respond. However, the Company may act without prior notice and provide notice afterwards in the following cases:
  1. Where there is a clear and serious harm to other users, the Company, or third parties, or where immediate blocking is required for security reasons
  2. Where immediate action is required by applicable law
  3. Abuse of the Mail service through spam, phishing, or malware distribution
• ③ Users may object to permanent suspension or account deletion within 30 days of notification by email, and the Company will respond within a reasonable period after receipt.
• ④ Data deletion processing, including the destruction of replicas, may take a reasonable period; immediate deletion may be required in cases such as security incidents or legal violations. Once data is permanently deleted, it cannot be recovered.

Article 14. Beta Features

The Company may provide new features labeled "beta," "experimental," or "preview" before formal release, to some or all users. Such features may be changed, suspended, or removed without prior notice. The Company is not liable for data loss or damages arising from the use of beta features, subject to Article 15.

Article 15. Company's Liability and Disclaimer

• ① The Company is not liable for service disruptions caused by the User's own fault.
• ② The Company does not warrant third-party content provided through the Service.
• ③ The Service is provided "as is," without guarantees of fitness for a particular purpose or absence of errors.
• ④ The Company is not liable for the content of emails sent or received through the Mail service.
• ⑤ The Service is provided free of charge, and the User acknowledges that no consideration has been paid to the Company under these Terms. Even where the Company is held liable, the Company's total liability shall not exceed the greater of (a) the amount paid by the User to the Company in the 12 months immediately preceding the event giving rise to the loss, or (b) KRW 100,000.
• ⑥ The Company is not liable for the following damages:
  1. Indirect, special, consequential, incidental damages; lost profits; lost business opportunities; reputation or credit damage; or derivative damages from data loss
  2. Damages arising from the User's failure to maintain their own backups
  3. Damages arising from failures, policy changes, or account suspensions of external services (social login, external IMAP/SMTP, Spotify, etc.) that the User has connected
  4. Damages arising from beta or experimental features or features provided additionally free of charge
  5. Damages arising from the User's device, network environment, browser settings, security software, or other environments beyond the Company's control
• ⑦ The disclaimers and limitations in this Article do not apply to damages caused by the Company's willful misconduct or gross negligence.

Article 16. User Indemnification

If a User causes loss to the Company (including litigation costs, attorneys' fees, and administrative sanction costs) by violating these Terms, applicable laws, or the rights of third parties, the User shall compensate such loss upon request by the Company. The Company retains control over the defense and handling of related disputes.

Article 17. Assignment and Business Transfer

• ① Users may not assign or pledge their rights and obligations under these Terms to third parties without the Company's prior written consent.
• ② The Company may transfer its position under these Terms or the operation of the Service to a third party (including a corporation) for operational efficiency, restructuring, merger, division, business transfer, or incorporation. In such cases, the Company will, in accordance with Article 27 of PIPA, notify users in advance of the transfer, the transferee's name and contact information, and the user's right and method to refuse the transfer. Users may refuse the transfer and delete their account within 30 days of notification.

Article 18. Governing Law and Dispute Resolution

• ① These Terms are governed by and construed in accordance with the laws of the Republic of Korea.
• ② Disputes arising from these Terms shall be brought before the competent court designated by the Civil Procedure Act. Where the User is a business operator (including a sole proprietor), the Seoul Central District Court shall have exclusive jurisdiction at first instance.
• ③ Before filing suit, the parties shall first attempt good-faith negotiation. If negotiation fails, the parties shall first consider mediation by the Personal Information Dispute Mediation Committee under PIPA or other applicable mediation procedures.

Article 19. Notices

The Company will notify users by one or more of the following methods:

• Email sent to the address associated with the account
• In-service notification (first screen after login or a dedicated notice page)
• Posting of these Terms and the Privacy Policy with the effective date

For urgent or material matters, the Company may, at its discretion, use additional notice methods such as email. Legal notices from the User to the Company (such as complaints or certified mail) should be sent to [email protected] or [email protected]; the Company may reply within a reasonable period to designate an additional address for service.

Article 20. Miscellaneous

• ① Severability — If any provision of these Terms is held invalid or unenforceable by a competent court, that provision shall be modified to the minimum extent necessary to be valid and the remaining provisions shall remain in full force.
• ② No Waiver — Failure or delay by the Company to exercise any right under these Terms shall not constitute a waiver of such right, and the exercise of any right shall not preclude the exercise of any other right.
• ③ Entire Agreement — These Terms, together with any service-specific policies or guidelines posted by the Company, constitute the entire agreement between the Company and the User regarding use of the Service. In case of conflict between these Terms and a separate policy, the separate policy shall prevail.

Article 21. Contact

• General inquiries: [email protected]
• Privacy: [email protected]
• Website: uknong.com