Privacy Policy

1. Information Collection

We may collect the following types of information:

• Account Information: Username (for account creation and login)
• Health Data: Age, gender, weight, serum creatinine values (used for calculations only)
• Calculation Records: Historical calculation results (for your convenience to view and manage)

2. Information Usage

We use the collected information to:

• Provide creatinine clearance calculation services
• Save and manage your calculation history
• Improve app functionality and user experience
• Provide technical support and customer service

3. Information Protection

We take the following measures to protect your information:

• Use encryption technology to protect data transmission
• Restrict employee access to personal information
• Regularly update security measures
• Never sell or lease your personal information to third parties

4. Data Storage

Your data is stored as follows:

• Calculation data is primarily stored locally on your device
• Account information is stored on secure servers
• We regularly back up important data to prevent loss

5. Your Rights

You have the following rights:

• View, correct, or delete personal information
• Stop using our services at any time
• Request us to delete your account and related data

6. Protection of Minors

We do not knowingly collect personal information from children under 13 years of age. If you are a minor, please use this app under the guidance of a parent or guardian.

7. Policy Updates

We may update this privacy policy from time to time. For significant changes, we will notify you within the app. Continued use of the app indicates your agreement to the updated policy.

8. Contact Us

If you have any questions about this privacy policy, please contact us through:

• In-app feedback feature
• App store review system