Privacy Policy

Last updated and effective: November 10, 2026

Yume Hana (operated by Kim Juhwan, the “Operator”) processes personal information as needed to provide its services. This policy explains what is processed and why, where it is stored or sent, and how you can manage it.

1. Scope and information processed

This policy applies to Yume Hana apps, the portfolio website and support services. Actual data depends on the app, feature, permissions and your choices. Read any app-specific notices together with this policy.

• Information you enter: support email, subject and message, chat messages, notes, schedules, weight and exercise notes, as required by the feature you choose.
• Information accessed for features: permitted photos, videos and albums, media identifiers, file sizes, capture times and location metadata stored in photos.
• Usage environment: IP address, device, operating system and app version, service requests, errors and diagnostics. Apps with ads may also process advertising identifiers and ad interactions.
• Preferences and state: language, theme, favorites, recent albums, progress, credit history and ad timestamps as needed to maintain features.

Not every app collects all these categories. On-device processing and external transmission are distinguished below.

2. Purposes

• Providing requested record storage and viewing, media organization and sharing, AI responses, translation and feedback.
• Maintaining preferences and progress, improving quality, investigating problems and preventing abuse.
• Receiving and answering inquiries and handling privacy rights requests.
• Delivering and measuring ads, diagnostics and privacy choices in apps with advertising.
• Meeting legal obligations. Additional processing, such as authentication in services with login features, follows the relevant feature notices.

The Operator uses information within the scope needed for the disclosed purposes. New purposes or processing requiring separate consent are subject to applicable notice and consent procedures.

3. On-device storage and external transmission

• On-device features store records, notes, media organization status and preferences on the device. If a service offers account synchronization or server backup, the information needed for those features may be stored on a server as described in the relevant feature notice.
• Photo and video features process media and related information you allow the app to access. If you look up an address for a photo, coordinates stored in that photo may be sent to the operating system’s geocoding service. When you share a file, it is sent to the app or recipient you choose.
• Web support requests send the selected service, inquiry category, email address, subject and message to the Operator’s support system. When you contact us by email, we use your reply address, message and any attachments you provide to answer.

4. AI features and external processing

When you use AI chat, translation, feedback, summaries or the website AI assistant, your input and relevant conversation context may pass through the Operator’s systems to an external AI provider such as Google Gemini to generate a response. The Operator uses this information to provide the AI feature you requested.

Keep passwords, identification numbers, financial information, unnecessary health information and other people’s private information out of AI inputs. External providers’ retention and security practices depend on their policies and service settings.

5. Advertising and external services

Services that show ads may use Google AdMob and the Google Mobile Ads SDK for the ad formats they offer. The SDK may process IP addresses (which may indicate approximate location), device and advertising identifiers, app and ad interactions, errors and diagnostics for ad delivery, measurement, analytics and fraud prevention.

Non-personalized ads do not mean no related data is processed. Processing varies with the app, operating system, SDK settings and consent choices. Where required, consent messages appear before ad requests. You can manage choices through available app and device advertising settings.

See also:

• Google Privacy Policy
• How Google uses information from apps and sites using its services

6. Disclosure, sharing and international processing

The Operator does not sell personal information. Relevant information may be sent externally for sharing you choose, requested AI and advertising features, support handling or other service processing described here, or in response to legal requirements. Separate consent is obtained where required.

External providers such as Google may process information on servers outside your country of residence. Providers and processing depend on the feature used. Any legally required international transfer notices or consent procedures will be followed. Information held by a sharing destination or external provider is also governed by that provider's privacy policy.

7. Retention and deletion

• On-device information can be removed through available item deletion or reset functions, or operating-system app data controls. Uninstalling, changing devices, backup and restoration depend on the operating system and settings.
• Check what the app will remove before resetting records in settings. In media management features, returning an item from a pending deletion list cancels its classification. File deletion, trash and cloud synchronization follow the rules of the operating system and the connected library.
• Inquiries and related information received by the Operator are kept as needed to answer and resolve them. Information no longer needed after that purpose is fulfilled is deleted, subject to any legally required scope and retention period.

Deleting data on a device does not automatically delete information already transmitted externally. Contact the Operator about information it holds; use external providers' request channels for information they hold. The Operator cannot remotely access or recover device-only records.

8. Your rights and choices

Under applicable law, you may request access, correction, deletion or restriction of processing, or withdraw consent. Photo and video permissions and advertising identifiers can be managed in supported device settings. Changing permissions or consent may limit features needing that information.

Send requests to the email below. Where necessary, we may request the minimum information needed to verify identity and handle the request. Do not send another person's information or unnecessary sensitive material such as passwords or original identity documents.

9. Security and browser storage

On-device information is protected by app storage and operating-system access controls. Unless separately stated, this does not mean all local app data has additional encryption. The Operator applies necessary access restrictions and security management to its systems and uses protected connections such as HTTPS for personal information transmission.

This website uses browser local storage to remember language and theme choices. Clearing site data removes these preferences and may reset your selections. On shared devices, also manage device and browser access and backup settings.

10. Children's information

Processing information about children whose age requires a legal representative's consent must follow the consent and protection procedures of applicable law. Guardians can contact us or make rights requests about children's information. Please also report suspected information provided without the necessary consent.

11. Changes to this policy

If features, external providers or data practices change, this policy and its update date will be revised. Important changes will be announced through the service or another appropriate channel, with separate consent where required. Publishing this page alone is not treated as your consent.

This revision explains on-device storage, external transmission, advertising, support and deletion in more detail by feature.

12. Operator and contact

• Service provider: Yume Hana
• Operator and privacy contact: Kim Juhwan (김주환)
• Email: dev.yumehana@gmail.com

Include the app name and your request to help us investigate. Choose and send only information needed to resolve your inquiry.