Privacy Policy for Certificate Manager
Effective Date: September 6, 2026
Last Updated: September 6, 2026
This Privacy Policy describes how Certificate Manager ("we", "our", or "the app"), developed by M. Aswini Kumar at Maharaj Vijayaram Gajapathi Raj College of Engineering (Autonomous), handles your information.
1. Zero Data Collection
Certificate Manager is designed with privacy as its primary foundation. We believe your academic and participant records belong exclusively to you.
• No Personal Information Collected: We do not collect, store, transmit, or share any personal information, participant rosters, student records, email addresses, or names.
• No Cloud Uploads: All file processing (PowerPoint template parsing, Excel roster reading, live certificate rendering, PDF conversion, and ZIP packaging) takes place 100% locally on your device.
• No Telemetry or Analytics: The app does not include third-party analytics SDKs, trackers, or behavioral profiling tools.
• No Advertising: The app is completely free of advertisements and does not use Google Advertising ID (AAID).
2. Device Storage & Permissions
To function as an offline document utility, the app requests standard Android storage permissions:
• Storage / Document Access: Used solely to allow you to select PowerPoint presentation files (.pptx) and participant spreadsheets (.xlsx) from your local storage, SD card, or Google Drive, and to save generated PDF certificates and ZIP archives back to your selected directory.
• Storage Access Framework (SAF): We use Google's native Storage Access Framework so you maintain complete control over which folders the app can access.
3. Third-Party Services
The application does not send data to any third-party servers. All libraries used (such as JSZip, jsPDF, SheetJS/XLSX, and QRCode) are bundled directly inside the APK and run entirely offline within the device's local execution environment.
4. Children's Privacy
Because Certificate Manager does not collect any personal data from any user, it is fully compliant with the Children's Online Privacy Protection Act (COPPA) and the General Data Protection Regulation (GDPR). The app is safe for users of all age categories.
5. Security
The application is built with security hardening, including:
• Obfuscated release bytecode via ProGuard / R8 to prevent reverse engineering and tampering.
• Disabled cleartext network traffic (HTTPS-only policy enforcement).
• Disabled remote debugging in production release builds.
• Prevention of unauthorized Android backup data extraction.
6. Changes to this Privacy Policy
We may update our Privacy Policy from time to time. Any changes will be posted within this document and reflected with an updated "Last Updated" date.
7. Contact Us
If you have any questions, suggestions, or concerns regarding this Privacy Policy or the app, please contact:
M. Aswini Kumar
Assistant Professor, Department of Data Engineering
Maharaj Vijayaram Gajapathi Raj College of Engineering (Autonomous)
Vizianagaram, Andhra Pradesh, India
Email: aswinikumarm@mvgrce.edu.in
Institutional Website: https://mvgrce.edu.in