Privacy Policy
Effective Date: May 21, 2026
Last Updated: May 21, 2026

This Privacy Policy explains the personal data we collect when you use the QR Scanner, All Barcode Reader app and the purposes for which we use that data.

1. Contact

If you have any questions, please contact us via email at:
📧 huongtram159@gmail.com

2. Subject of Data Protection

The subject of data protection is personal data. According to Article 4(1) GDPR, personal data refers to any information related to an identified or identifiable natural person, such as names or identification numbers.

3. Collection and Use of Data

3.1 Automated Data Collection

When you access the QR Scanner, All Barcode Reader app, your device automatically sends data for technical reasons. This data is stored separately from any other data you may provide to us, including:

Date and time of access

Browser type/version

Operating system used

URL of the previously visited website

IP address (truncated by one octet)

This data is stored for technical purposes only and is not associated with any specific individual.

3.2 Support Requests

If you contact our support team, we collect and store the personal data you provide to process your request. You are not required to provide personal data and may contact us using a pseudonym.
We store support requests for 120 days after completion to ensure proper resolution and assist with any future issues.

Processing is carried out to fulfill your request and ensure proper operation of the app (Article 6(1)(b) GDPR).
For general inquiries, processing is based on our legitimate interest in responding to emails (Article 6(1)(f) GDPR).

4. Cookies

We use “cookies” to ensure full functionality and improve user experience. You may disable cookies in browser settings, but some app features may not work properly.

We use:

Firebase cookies

Facebook Meta SDK cookies

Google Ads cookies (ad performance measurement)

Google Analytics cookies (usage analysis & improvements)

These cookies do not personally identify you.
Use of cookies is based on our legitimate interest in improving service design (Article 6(1)(f) GDPR).

5. Data Transfer

5.1 Law Enforcement Requests

In case of suspected illegal activity or misuse, personal data may be shared with authorities based on:

Legitimate interest (Art. 6(1)(f) GDPR)

Legal obligation (Art. 6(1)(c) GDPR)

5.2 Third Party Service Providers

We use carefully selected providers who process personal data in accordance with GDPR.
Transfers follow Article 28(1) GDPR or rely on legitimate interest.

6. Data Deletion

Data is deleted or anonymized once no longer necessary:

Support requests: 120 days

Google Analytics data: 14 months

7. Children’s Privacy

The app is not intended for children under 13 and does not knowingly collect data from them (COPPA compliant).

8. Changes to this Privacy Policy

We may update this Privacy Policy to reflect legal or operational changes. Please review periodically to stay informed.