MoaByul Terms of Service

These Terms of Service set out the rights, obligations, and responsibilities between Nakhoyi Studio (the “Operator”) and users in connection with MoaByul (the “Service”).

1. “Guardian Account Holder” means a person who agrees to these Terms, creates a guardian account, and uses the Service.
2. “Child User” means a person who uses the Service through a child profile created by a Guardian Account Holder and a pairing code.
3. “Family” means a family group created and managed by a Guardian Account Holder within the Service.
4. “Family Content” means information entered by users or created through use of the Service, including missions, completion requests, praise messages, rewards, stars, and activity history.
5. “Stars” means the in-service record used to represent completed missions and reward use within a Family.
6. “Reward” means an arrangement made between a Guardian Account Holder and a Child User within a Family.
7. “Paid Service” means a subscription, paid feature, or any other part of the Service for which a fee is charged.

1. The Operator makes these Terms readily available within the Service.
2. A Guardian Account Holder agrees to these Terms by completing the consent process provided in the Service.
3. A Child User may use the Service only with the consent and under the supervision of a Guardian Account Holder who has lawful authority over that child.
4. Matters not addressed in these Terms are governed by applicable law and notices provided within the Service.

1. The Operator may revise these Terms to the extent permitted by applicable law.
2. When these Terms change, the Operator will provide advance notice within the Service of the effective date and the changes.
3. Changes that are material or unfavorable to users will generally be announced at least 30 days before they take effect. Other changes will generally be announced at least 7 days in advance.
4. Changes that materially affect user rights or obligations may also be announced through an in-app notification, email, service notice, or another appropriate method.
5. A user who does not agree to the revised Terms may stop using the Service and delete their account.

1. A Family or child profile must be created by a guardian who has lawful authority to protect and care for the child concerned.
2. A Guardian Account Holder must have all authority and consent required to create a child profile or pair a child’s device.
3. A Guardian Account Holder is responsible for helping the child use the Service safely and appropriately.
4. Before collecting a child’s information, the Operator explains the data collected, its purposes and retention periods, and how to request deletion or exercise privacy rights. Where applicable law requires a legal guardian’s consent, including for children under 14 under Korean law, the Operator obtains and verifies consent before processing the information, and keeps and manages records of consent and verification. Accepting these Terms, signing in to a guardian account, passing a guardian screen, or using a pairing code does not itself replace the legal guardian’s consent or its verification, or transfer the Operator’s legal duties to the guardian.
5. A Guardian Account Holder must not register or use another child’s information without authorization.
6. A Guardian Account Holder must keep their account and authentication methods secure and notify the Operator if account misuse or a security breach is suspected.

1. Guardian Account Holders can sign in with an email one-time password (OTP), Google, or Apple. Apple’s Hide My Email may supply a relay address. The Operator does not receive social-account passwords.
2. A Child User pairs a child device using a one-time pairing code issued by a guardian. We recommend a nickname rather than a real name. Children are not asked to enter an email address or password.
3. A pairing code may be used only for the designated child profile and must not be shared with anyone who lacks authority to use it.
4. Pairing a new child device or revoking an existing pairing may end access from the previously connected device.
5. Completing “Leave on this device” on a child device deletes that device’s authentication and pairing data and anonymous authentication account.
6. Unpairing a child device does not delete the child profile or its missions, stars, rewards, and activity history from the guardian account. It is neither deletion of the child’s information nor withdrawal of consent to its processing.
7. Guardians can delete a child’s profile and related records in “More → Our family → select the child → Delete child’s data,” without deleting their own account. If using the app is difficult, requests can be sent to contact@nakhoyi.com. Article 15 and the Privacy Policy explain what is deleted and how.

The Service is currently free and has no payments, subscriptions, or advertising. The list below distinguishes current family-activity features from possible future additions. Children’s personal information is handled under Article 5 and the Privacy Policy.

1. Family and child-profile management
2. Mission creation, completion requests, and guardian review
3. Awarding stars for completed missions and recording activity
4. Creating and requesting Family rewards and receiving guardian responses
5. Sending praise messages and bonus stars
6. Viewing streaks, completed-mission counts, and progress by date
7. Pairing child devices and managing pairing status
8. Real-time synchronization of requests and responses
9. Push notifications and in-app notifications
10. Possible future free or paid features — subject to advance notice and any consent required under Articles 4 and 10
11. Other possible future family-activity and growth features — with advance notice of changes to use conditions and personal-information handling

1. Stars are in-service records representing Family activities. They are not cash, electronic currency, a prepaid payment instrument, or a security.
2. Stars cannot be sold, transferred, exchanged, redeemed for cash, or used outside the Service.
3. Guardian approval of a mission creates a praise gift and pending Stars. The mission’s base Stars and bonus Stars are actually credited when the child claims that gift.
4. Guardian approval of a Reward request reserves the required Stars so they cannot be used for another Reward. The reserved Stars are deducted when the child opens the approval reply and confirms the exchange.
5. No Stars are deducted for a declined Reward request. Processing status and actual deductions can be checked in the app’s records; confirmed errors are corrected under paragraph 8.
6. A Reward is an arrangement among Family members. The Operator is not the provider, seller, or transaction party for the actual Reward.
7. Family members decide the content, timing, and fulfillment of each Reward.
8. If the Operator confirms a system error, duplicate transaction, or misuse, it may review the related records and correct the awarding or deduction of Stars.
9. A paid subscription or the display of advertising does not give Stars any cash value or make them refundable.

1. Rights in Family Content remain with the user who created it or another lawful rights holder.
2. The Operator may process Family Content only as needed to provide, synchronize, store, back up, recover, and secure the Service.
3. As a rule, Family Content is made available only within the relevant Family and on devices with authorized access.
4. A Guardian Account Holder must ensure that missions, Rewards, and praise messages are appropriate for the child.
5. Users must not create content that infringes another person’s rights or is inappropriate for a child.
6. The Operator may restrict content that violates the law, infringes another person’s rights, or compromises Service safety.

1. The Service is currently free, with no payment function or paid subscription. The paid-service provisions below apply only if those features are introduced in the future.
2. Before introducing paid services or restrictions on free features, the Operator will disclose prices, scope, terms of use, and changes to personal-information handling and follow the notice and consent requirements of Article 4 and applicable law. These Terms alone do not create a charge or constitute consent to a future purchase.
3. Before purchase, the Service and the relevant app-store payment screen will disclose the price, included features, service period, billing cycle, free trial, and whether the Paid Service renews automatically.
4. Purchases and subscription management are offered only in an area accessible to Guardian Account Holders.
5. If a purchase feature is available on a screen accessible to a Child User, the Service will require guardian confirmation.
6. A recurring subscription may renew automatically under the terms displayed by the app store unless the user cancels it.
7. Users can manage or cancel subscriptions in their Apple App Store or Google Play account settings.
8. Canceling a subscription does not end access to paid features before the already-paid service period expires, unless different terms were disclosed at purchase.
9. If a free trial is offered, its duration, end date, and conversion to a paid subscription will be disclosed before the trial begins.
10. Cancellations and refunds are governed by applicable law, the terms disclosed at purchase, and the policy of the app store that processed the payment.
11. The Operator may change the price or content of a Paid Service. Subscription price changes will follow the notice and consent process provided by the app store and will generally apply from the next renewal.
12. If the Operator ends a Paid Service, it will explain any effect on user rights and any refund or alternative measure required by applicable law.

1. The Service currently has no advertising or advertising SDK. The provisions below apply only if advertising is introduced in the future, following Article 4 notice, a Privacy Policy update, and any required consent before introduction.
2. A paid subscription may include an ad-removal benefit, with the applicable terms disclosed before purchase.
3. The Operator does not provide behaviorally targeted advertising on screens used by children.
4. If advertising is shown on a child-facing screen, the Operator will comply with applicable law and children’s app policies and use only age-appropriate contextual advertising.
5. If a third-party advertising SDK is used for child-directed advertising, the Operator will use only an SDK permitted for child-directed services.
6. A child’s personal information, device identifier, or advertising identifier will not be used for personalized advertising.
7. If personalized advertising is offered on guardian-facing screens, any legally required consent or device permission will be requested in advance.
8. Advertising will be presented in a way that distinguishes it from ordinary content.
9. Full-screen advertising will include a close or skip control that users can readily find and operate.
10. If introducing an advertising SDK changes how personal information is handled, the Operator will update the Privacy Policy and provide any required notice before advertising begins.

Users must not engage in any of the following conduct.

1. Accessing another person’s account, Family, or child profile without permission
2. Giving a pairing code to someone who is not authorized to receive it
3. Registering false information or impersonating another person
4. Manipulating Stars, activity records, or request outcomes through abnormal means
5. Exploiting an error in the Service for improper gain
6. Disrupting normal Service operations or compromising security
7. Distributing malicious code or attempting an automated attack or unauthorized access
8. Copying, modifying, reverse-engineering, or commercially exploiting the Service without the Operator’s permission
9. Collecting or using another person’s personal information or content without authorization
10. Violating applicable law or another person’s rights

1. The Operator may change all or part of the Service for feature improvements, security measures, maintenance, or operational needs.
2. Changes or interruptions that materially affect users will be announced in advance where reasonably possible.
3. The Service may be temporarily interrupted without advance notice due to an urgent security issue, outage, natural disaster, or another circumstance outside the Operator’s reasonable control.
4. The Operator will use reasonable efforts to provide the Service reliably.
5. If a material feature is suspended for an extended period or the Service is discontinued, the Operator will explain how users can review their data, delete their account, and address any Paid Service.

1. The Operator may restrict access to the Service if a user violates these Terms or applicable law.
2. The Operator may temporarily restrict access by an account or device to the extent necessary to address a security breach, account takeover, fraudulent Star manipulation, or a risk of harm to another user.
3. Except where urgent action is required, the Operator will explain the reason and nature of a restriction and provide the user an opportunity to respond.
4. A restriction will be proportionate to the violation and the degree of harm.

1. In “More → Delete account,” guardians can review the deletion scope, reauthenticate using a linked email, Google, or Apple method, and give final confirmation. Signing out or uninstalling the app does not delete the account.
2. Guardians can keep their account and delete a particular child’s profile, related records, device connections, and exclusively assigned Missions and Rewards in “More → Our family → select the child → Delete child’s data.” For shared items, only that child’s association is removed; other children’s records, guardian accounts, and Family information remain. Deleted information cannot be restored in the app. The Privacy Policy describes the full deletion scope.
3. If using or reinstalling the app is difficult, guardians can email contact@nakhoyi.com to request deletion of the whole account or a particular child’s data. The Operator performs minimal verification of the account holder or authorized guardian and explains the timetable and any necessary follow-up.
4. If another guardian remains in the Family, Family and child data remain. Deleting the last guardian account also deletes the Family, child profiles, missions, Stars, Rewards, and activity history.
5. Unpairing a device only blocks that device’s access; it does not delete the child’s profile or activity or immediately delete its anonymous authentication account. “Leave on this device” deletes that device’s authentication and pairing data and anonymous authentication account, while retaining Family data. These device-disconnection actions do not withdraw consent to the processing of the child’s information.
6. Deleting a MoaByul account does not delete a Google or Apple account. Social connection revocation is processed separately; failure may require a retry or action in the provider’s account settings.
7. Completion and error-recovery records and encrypted credentials for guardian-account deletion jobs follow that process’s retention rules; those rules do not also apply to individual child-data deletion. Deleting a child’s data immediately blocks device access, and related anonymous authentication accounts follow a separate cleanup and retry process. Ordinary disconnected or unused accounts, security logs, backups, and external-service records are handled separately. The Privacy Policy’s retention and MoaByul account-deletion sections explain the respective rules.
8. Information subject to a legal retention duty is kept for the required period with restricted purposes and access. An in-app deletion-completed message does not mean that all external records were deleted simultaneously.
9. Account deletion or an access restriction does not extinguish an already-arisen lawful payment, refund, or statutory responsibility. This does not mean that the current Service offers payments or subscriptions.
10. A legal guardian can request withdrawal of consent to the processing of a child’s information at contact@nakhoyi.com. After verifying their authority with the minimum information needed, the Operator stops consent-based processing and the affected child’s use of the relevant features, and deletes the related information without undue delay. Information subject to a legal retention duty is kept only for the required purpose and period, with restricted access. The Privacy Policy explains the handling rules in detail.

1. Rights in the Service software, design, trademarks, text, and content created by the Operator belong to the Operator or the relevant lawful rights holder.
2. Users must not copy, distribute, sell, or modify any part of the Service beyond what is necessary to use it.
3. Open-source software is governed by its applicable open-source license.
4. Third-party icons, images, fonts, and services are governed by the terms of the relevant rights holder.

1. The Operator handles personal information in accordance with applicable law and the Privacy Policy.
2. The Privacy Policy describes the personal information handled, purposes of use, retention periods, processors, international transfers, advertising and payment providers, and the rights of users and legal representatives.
3. If a subscription, advertising feature, or external service changes how personal information is handled, the Operator will update the Privacy Policy before offering that feature.
4. If the Privacy Policy conflicts with these Terms, the Privacy Policy and applicable law control matters involving personal information.

1. The Operator is liable under applicable law for loss caused by its willful misconduct or negligence.
2. The Operator is not liable for loss caused by the user, the user’s device or network, or a circumstance outside the Operator’s reasonable control unless the Operator acted willfully or negligently.
3. Family members decide and are responsible for the content and fulfillment of missions and Rewards arranged within their Family.
4. The Operator does not guarantee Family relationships, parenting or educational methods, the suitability of a mission, or fulfillment of a Reward promise.
5. The Operator applies reasonable safeguards to protect and recover data.
6. Nothing in this Article improperly limits a user right or Operator responsibility that cannot be limited under applicable law.

1. These Terms are governed by the laws of the Republic of Korea.
2. The Operator and users will work in good faith to resolve disputes relating to the Service amicably.
3. A dispute that cannot be resolved through discussion will be submitted to a court with jurisdiction under applicable law and the Korean Civil Procedure Act.
4. Mandatory protections under the law of a user’s place of residence remain unaffected.

• Service: MoaByul
• Operator: Nakhoyi Studio
• Representative: LEE NAKHO (이낙호)
• Customer support and rights requests: contact@nakhoyi.com
• Website: https://nakhoyi.com

1. Push notifications are optional and can be changed in device notification settings. Core features such as missions and rewards remain available without permission.
2. Device settings, network conditions, or an external notification service may delay or prevent delivery. You can check the latest requests and replies in the app.
3. These limitations do not restrict liability for the Operator’s intentional acts or negligence or any rights under applicable law.

1. The demo lets you try features with sample family data held in memory, separate from real accounts. Changes are lost when you reset it or restart the app.
2. It does not send real authentication emails or push notifications, perform social sign-in, or delete server-side accounts or family data. It may use the network to load legal documents and similar resources.
3. Approval, Star, and deletion screens in the demo illustrate sample behavior; they do not represent real family data or completion of an operation in the live service.

Notice date and effective date: September 20, 2026.

• September 12, 2026: the previous published version took effect. This revision does not retroactively change that version’s effective date or history.
• September 20, 2026 revision: clarifies the current free, ad-free Service, when Stars and Rewards are processed, notices and guardian consent, verification and withdrawal, account and individual child-data deletion, notifications, and the demo. Notice and application of amendments follow Article 4.