1. Introduction

This Privacy Policy explains how Expense Tracker ("we", "our", or "us") collects, uses, and protects your information when you use our mobile application. We are committed to protecting your privacy and ensuring the security of your personal data.

2. Information We Collect

2.1 Information You Provide

Account information (email address) when you register
Financial data you enter (transactions, categories, notes)
Reminder settings and preferences

2.2 Automatically Collected Information

Device information (device type, operating system)
App usage data (features used, crash reports)
Advertising identifiers (for displaying relevant ads)

3. How We Use Your Information

We use the collected information to:

Provide and maintain the App's functionality
Sync your data across devices (if you have an account)
Send payment reminders and notifications
Improve the App based on usage patterns
Display relevant advertisements
Respond to your support requests

4. Data Storage and Security

Your financial data is primarily stored locally on your device. If you choose to create an account, your data may be synced to our secure cloud servers (Firebase) for backup and cross-device synchronization.

We implement industry-standard security measures to protect your data, including encryption in transit and at rest. However, no method of electronic storage is 100% secure.

5. Third-Party Services

Our App uses the following third-party services:

Firebase (Google) - Authentication and cloud storage
Google AdMob - Advertising services
Apple/Google In-App Purchases - Payment processing

These services have their own privacy policies governing the use of your information.

6. Advertising

The free version of our App displays advertisements provided by Google AdMob. These ads may be personalized based on your interests. You can opt out of personalized advertising through your device settings.

7. Data Sharing

We do not sell your personal financial data to third parties. We may share anonymized, aggregated data for analytics purposes. We may disclose your information if required by law or to protect our legal rights.

8. Your Rights

You have the right to:

Access your personal data
Export your financial data
Delete your account and associated data
Opt out of personalized advertising
Withdraw consent for data processing

9. Data Retention

We retain your data for as long as your account is active or as needed to provide services. If you delete your account, we will delete your personal data within 30 days, except where retention is required by law.

10. Children's Privacy

Our App is not intended for children under 13 years of age. We do not knowingly collect personal information from children. If you believe we have collected information from a child, please contact us immediately.

11. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new policy on this page and updating the "Last updated" date.

12. Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us at:

Email: truongthanhcn12@gmail.com