Privacy Policy for Expense Follower

Expense Follower ("we," "us," or "our") values your privacy. This Privacy Policy explains what information we collect, how we use it, how we store it, and your choices when using the Expense Follower mobile application (the "App").

1. Information We Collect

When you create or use an account in Expense Follower, we collect and process the following information:

• Name
• Email address
• User ID (UID) associated with your account
• Group-related data necessary for app functionality, such as: groupId, joinedGroups, joinedAt

We collect your name and email address when you create or manage your account in the App.

2. How We Collect Information

We collect information in the following ways:

• Through Firebase Authentication, when you sign in or maintain a user session
• Through Cloud Firestore, where account and group-related data are stored
• Through local device storage used to keep you signed in between app sessions

3. How We Use Information

We use your information only to provide and operate the App, including:

• Creating and managing your account
• Authenticating users
• Keeping you signed in between app launches
• Storing and retrieving your group membership information
• Enabling core app functionality related to expense and group participation
• Maintaining service security and reliability

We do not use your personal information for advertising or tracking across third-party apps or websites.

4. Data Storage

Your account and group-related information is stored in cloud databases operated through Firebase services.

Authentication session information may also be stored locally on your device so that you remain signed in after closing and reopening the App.

5. Data Sharing

We do not sell your personal information.

We share data only with service providers necessary to operate the App, including Firebase Authentication for sign-in and session management, and Cloud Firestore for storing account and group-related data required for app functionality.

6. Data Retention

We retain your information only for as long as necessary to provide the App and comply with legal obligations.

If you delete your account, we will delete or anonymize your personal data, unless we are required to retain certain data by law.

Residual copies may remain temporarily in backups for security, fraud prevention, or legal compliance purposes.

7. Account Deletion and Your Rights

You may request deletion of your account and associated personal data through the app or by contacting us.

If account deletion is supported in the app, you can initiate it directly there. Otherwise, you may contact us using the email below.

We may retain limited information where required by law or for legitimate legal and security purposes.

8. Children's Privacy

Expense Follower is not intended for children under the age of 16. We do not knowingly collect personal information from children under 16.

9. Security

We use reasonable administrative, technical, and organizational measures to protect your data. However, no method of transmission or storage is completely secure.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. If we make material changes, we will update the "Last updated" date.

11. Contact Us

If you have any questions or requests regarding this Privacy Policy, you can contact us at:

[email protected]