Privacy Policy

1. Introduction

HJIN Labs (“we,” “our,” or “us”) is committed to protecting your privacy. This Privacy Policy explains how we handle your information across all our applications and services.

Each application we develop may collect and process data differently depending on its functionality. Please review both this corporate policy and the specific policy for the application you are using.

2. App-Specific Privacy Policies

Each HJIN Labs application has its own detailed privacy policy. Please select the relevant application below:

3. Information We Collect

The information we collect varies by application. Below is a summary; please refer to the specific privacy policy for each application for complete details:

• Steprize: Step counts, distance, activity levels, email address, username, device model, OS version, advertising ID.
• Budget Tracker: Email address, hashed password, income/expense records, SMS transaction data (with permission), device model.
• Domino: No data collected — fully offline application.

4. How We Use Your Information

We use the collected information solely to provide and improve our applications. We do not sell your personal data to third parties. Data is used for authentication, feature functionality, synchronization across devices, analytics, crash reporting, and serving relevant advertisements (in applicable applications).

5. Third-Party Services

Depending on the application, we may use the following third-party services:

• Supabase — Authentication, database, and real-time synchronization
• Firebase — Cloud messaging and analytics
• Google AdMob — In-app advertising
• Yandex Ads — In-app advertising mediation
• Google Play Billing — In-app purchases and subscriptions

6. Data Security

All data transmitted between our applications and servers is encrypted using industry-standard TLS protocols. Passwords are hashed using bcrypt before storage. Local data stored via Room database is encrypted at rest on supported devices. We implement access controls and regular security audits to protect your information.

7. Data Retention and Deletion

We retain your personal data only as long as necessary to provide our services. You may request deletion of your account and all associated data at any time. Upon receiving a verified deletion request, we will remove your data from our servers within 30 days. Local data stored on your device can be cleared by uninstalling the application or clearing app data through your device settings.

To request data deletion, contact us at hjinlabs@gmail.comwith the subject line “Data Deletion Request” and include the email address associated with your account.

8. Your Rights

Depending on your jurisdiction, you may have the following rights regarding your personal data:

• Right to Access: Request a copy of the data we hold about you.
• Right to Rectification: Request correction of inaccurate data.
• Right to Deletion: Request deletion of your data (subject to legal obligations).
• Right to Object: Object to processing of your data for specific purposes.
• Right to Data Portability: Request transfer of your data to another service.

To exercise any of these rights, please contact us at hjinlabs@gmail.com. We will respond to your request within 30 days.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new policy on this page and updating the “Last Updated” date. Your continued use of our applications after any changes indicates your acceptance of the updated policy.

10. Contact

For privacy-related inquiries, data deletion requests, or any questions regarding this policy, please contact us at: