Privacy Policy

Hamjji is a companion-based self-care service that supports small, everyday care habits. We process personal information as needed to provide the service, in accordance with applicable privacy laws.

1. Personal information we process

Hamjji currently processes the following information.

• Account information: user ID, account type, guest identifier, sign-up date and time, and the dates and times of account deletion requests and scheduled deletion
• Authentication information: authentication provider, provider-specific user identifier, and authentication creation and update times
• Service information: hamster name, growth stage, affection, acorns, equipped items, room items, and position settings
• Habit and goal information: goal titles, categories, repeat settings, completion dates, and dates when goals were hidden
• Adventure and care records: daily adventure status, rewards, start/return/completion times, care sessions, and soundscape playback records
• Subscription information: subscription tier, payment provider, provider subscription ID, and subscription expiry date
• Information that may be generated automatically when using the app and server: access times, request information, error logs, and device and network information

Hamjji currently asks for a hamster name when you start as a guest. If you sign in with Apple, Naver, or Kakao, we may process the user identifier supplied by that provider and the minimum information needed to link your account. We do not separately request or store your name or email address during Apple sign-in. We recommend leaving sensitive or uniquely identifying information, such as health information, resident registration numbers, and financial information, out of goal titles and other text you enter.

2. Why we process personal information

• Identifying members, maintaining sign-in, linking accounts, and checking eligibility to use the service
• Providing core features, including the hamster character, goals, daily adventures, items, and care records
• Checking subscription status, managing access to paid features, and providing payment-related support when offering paid subscriptions
• Handling user requests, exporting backups, responding to inquiries, and providing notices
• Scheduling and canceling account deletion requests and carrying out permanent deletion
• Maintaining service reliability, analyzing errors, preventing misuse, and managing security
• Meeting legal obligations and responding to disputes

3. How long we keep personal information

Hamjji keeps personal information until the purpose for processing it has been fulfilled. If you request account deletion in the app settings, the account remains scheduled for deletion for 30 days from the request. During this time, you can keep using the service or cancel the request. After 30 days, the account and related personal information are automatically and permanently deleted, unless you cancel before deletion takes place or the law requires us to retain information.

• Service account and usage records: kept while the account is active and during the 30-day deletion waiting period
• Account deletion request and scheduled deletion times: kept until the account is permanently deleted
• Subscription and payment records: may be kept for periods required by applicable laws, including e-commerce laws
• Server access and error logs: kept for the period needed for service reliability and security

Information in system backups or security logs may remain for a limited time for recovery and security. It is not used for other purposes and is deleted as backups are replaced or the retention period ends.

4. Sharing personal information with third parties

As a rule, Hamjji does not provide personal information to third parties. We may do so to the extent necessary if you consent or if the law requires it.

5. Service providers and external services

Hamjji may use the following external services to provide its features. We update this policy when the external services we use change.

• Supabase: database and file storage, and server infrastructure
• Hosting services such as Vercel: API server and web page deployment, and log management
• Cloudflare: domain DNS, CDN, and storage and delivery of public images and audio files
• Sentry: analysis of app errors and performance issues, and improvements to service reliability
• Google Play billing: payment and subscription status checks for paid Android subscriptions
• Apple App Store billing: payment and subscription status checks for paid iOS subscriptions
• Apple, Kakao, and Naver: user authentication and account linking for social sign-in

Hamjji does not directly store original payment-method details, such as card numbers, used for app-store purchases. Those details are handled under the policies of the relevant app store or payment provider.

6. App permissions and device information

Hamjji uses internet access to provide its service and may request permissions related to the microphone, storage, vibration, and audio settings for features such as sound playback, device settings, backups, or media processing. The Hamjji server does not currently directly store microphone recordings or the contents of files in your device storage. Features requiring permission work only after you allow them. You can change permissions in your device settings.

7. Deleting personal information

You can request deletion in the app under Profile > Settings > Account > Delete account. After 30 days, we delete account identifiers and linked data, including your hamster, goals, records, and owned items, in a way that makes recovery difficult. You can cancel the request on the same settings screen during the waiting period. Information that must be retained by law is kept separately from other personal information for the required period, then deleted or anonymized.

8. Your rights

You may request access to, correction or deletion of, or a stop to processing your personal information, and you may withdraw consent. You can request account deletion in the app settings and cancel before deletion takes place. For the steps, see the Account deletion guide. For other requests or questions, please use the contact details below. After verifying your identity, Hamjji handles requests in accordance with applicable laws.

9. Children's personal information

Hamjji does not knowingly collect personal information from children for whom a legal guardian's consent is required. If we learn that such information has been collected, we take the measures required by applicable law.

10. Security measures

• Authentication and authorization checks using service access tokens
• Separate management of server environment variables and service-role keys
• Restricted database access and review of operational logs
• Collection of only the minimum information needed for the processing purpose

11. Privacy contact

For privacy questions, requests to exercise your rights, or complaints, please contact us at the email address below.

Email: nova950520@gmail.com

12. Changes to this policy

This privacy policy may change when laws, the service, or the way we process personal information change. We announce significant changes in the app or on the website.