1. Purpose of Collection and Use of Personal Information

HBLOOD ("Company") collects and uses personal information for the following purposes in operating DoWithMe ("Service").

• Member registration and management: identity verification, service provision, account management
• Service provision: workout preset storage, challenge participation, feed features
• Service improvement: usage analytics, error tracking, user feedback
• Advertising: personalized ads (Google AdMob)

2. Personal Information Collected

Type	Items	Method
Required	Email, display name, unique user ID	Upon registration
Auto-collected	Device info, OS version, app version, access logs, error logs	Automatically during use
Optional	Profile photo, workout videos	User upload

3. Retention and Use Period

Personal information is deleted without delay upon withdrawal or once the purpose of collection is achieved. Where retention is required by law, it is kept for the prescribed period.

• E-commerce records: 5 years (Consumer Protection Act)
• Access logs: 3 months (Communications Privacy Act)

4. Provision to Third Parties

The Company does not provide users' personal information to third parties in principle, except where the user has given prior consent or where required by law.

5. Outsourcing of Personal Information Processing

Vendor	Purpose
Google (Firebase)	Authentication, data storage, hosting, analytics, crash reporting
Google (AdMob)	Ad serving
Sentry	Error tracking and feedback

6. Your Rights

You may at any time request access, correction, deletion, or suspension of processing of your personal information via in-app profile settings or the contact below.

7. Security Measures

• SSL/TLS encryption for data in transit
• Access control via Firebase Security Rules
• No password storage (OAuth-based authentication)

8. Cookies and Tracking

The service collects app usage data through Firebase Analytics and Google AdMob. You can limit ad tracking in your device settings.

9. Privacy Contact

• Company: HBLOOD
• Email: support@hblood.co.kr

10. Changes to This Policy

This policy may be updated in accordance with applicable laws and service changes. Users will be notified through in-app notice when changes are made.

Effective: February 6, 2026