Privacy Policy

1. Information We Collect

Depending on the App you use and the features you enable, we may collect the following types of information:

Account Information

• Email address, display name, or username when you create an account
• Authentication identifiers (such as a user ID or provider token)
• Profile preferences and settings you choose within the App

Usage Information

• App interactions, feature usage, and session duration
• Device type, operating system version, and app version
• Crash reports, performance data, and diagnostic logs
• General location data (country or region level) when permitted

Subscription Status

• Whether you have an active, expired, or cancelled subscription
• Product identifiers, purchase tokens, and renewal status
• Transaction dates provided by the billing platform (we do not store full payment card details)

2. Third-Party Services & Integrations

Our Apps may use the following third-party services to operate core functionality:

Google Play Billing

In-app purchases and subscriptions are processed through Google Play Billing. Google may collect payment and transaction information according to Google's Privacy Policy. We receive only the information necessary to verify and manage your subscription status.

Firebase (Google)

We may use Firebase services such as Authentication, Cloud Firestore, Cloud Messaging, Analytics, and Crashlytics. Firebase may collect device identifiers, usage data, and crash logs to help us improve app stability and performance. Learn more at Firebase Privacy.

Cloudflare

We may use Cloudflare for content delivery, security, and API protection. Cloudflare may process IP addresses and request metadata to deliver and secure our services. See the Cloudflare Privacy Policy for details.

3. How We Use Your Information

We use the information we collect for the following purposes:

• Provide and maintain the Apps — authenticate users, sync data, and deliver requested features
• Manage subscriptions — verify purchase status, enable premium features, and handle renewals or cancellations
• Improve our services — analyze usage patterns, fix bugs, and enhance performance and usability
• Communicate with you — respond to support requests and send important service-related notices
• Ensure security — detect fraud, abuse, and unauthorized access
• Comply with legal obligations — meet applicable laws and respond to lawful requests

4. Data Sharing

We do not sell your personal information. We may share data only in these circumstances:

• With service providers listed above, solely to operate the Apps
• When required by law, regulation, or legal process
• To protect the rights, safety, and security of users and our services
• In connection with a merger, acquisition, or sale of assets, with notice to users where required

5. Data Retention

We retain personal information only as long as necessary to provide the Apps, fulfill the purposes described in this policy, and comply with legal obligations. When data is no longer needed, we delete or anonymize it within a reasonable timeframe.

6. Your Rights & Choices

Depending on your location, you may have the right to:

• Access, correct, or delete your personal information
• Withdraw consent where processing is based on consent
• Opt out of non-essential analytics where supported by the App
• Request a copy of your data in a portable format

To exercise these rights, contact us at nguyenhailong2508@gmail.com. We will respond within a reasonable period as required by applicable law.

7. Children's Privacy

Our Apps are not directed to children under the age of 13 (or the minimum age required in your jurisdiction). We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us and we will take steps to delete it.

8. Security

We implement appropriate technical and organizational measures to protect your information, including encryption in transit (HTTPS/TLS) and access controls. However, no method of transmission or storage is 100% secure, and we cannot guarantee absolute security.

9. International Data Transfers

Your information may be processed in Vietnam and in countries where our service providers operate. By using the Apps, you consent to the transfer of information to these locations, which may have different data protection laws than your country of residence.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will post the revised policy on this page and update the "Last Updated" date. Continued use of the Apps after changes constitutes acceptance of the updated policy. For material changes, we may provide additional notice within the App.

11. Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact: