DocuGuest

Privacy Policy

1. Information We Collect

DocuGuest is designed with privacy in mind. We collect minimal information to provide you with document reading services:

• Document Data: Personal information extracted from Spanish DNIe cards, MiDNI QR codes, and international travel documents is processed locally on your device only.
• Camera Access: Required to scan QR codes and MRZ zones from documents. Images are processed locally and not stored.
• NFC Access: Required to read Spanish DNIe cards via NFC technology on Android devices.
• Usage Analytics: Anonymous usage analytics through Plausible Analytics to understand how features are used and improve the app experience.
• Device Information: Basic device information for compatibility and crash reporting purposes.

2. How We Use Your Information

Your information is used solely to:

• Read and extract personal data from Spanish DNIe cards using official SDK
• Process and verify MiDNI QR codes with digital signature validation
• Scan and parse MRZ data from international travel documents
• Display extracted information within the app interface
• Improve app performance and user experience through privacy-focused analytics
• Provide customer support when requested

3. Data Storage and Security

We prioritize the security of your personal data:

• Local Processing: All document reading and data extraction happens locally on your device
• No Cloud Storage: We do not offer or use cloud storage services - all data stays on your device
• No Server Storage: We do not store any personal data or document information on our servers
• Temporary Data: Extracted document data is only kept in app memory and can be cleared at any time
• NFC Security: DNIe reading uses official SDK with secure authentication via CAN number

4. Data Sharing

We do not sell, trade, or otherwise transfer your personal information or document data to third parties. All extracted document data remains private and under your control at all times. No personal data is transmitted to external servers.

5. Analytics

We use self-hosted analytics to understand how the app is used and improve the user experience. Our analytics system:

• Collects anonymous usage data without cookies or personal identifiers
• Does not track users across devices or sessions
• Records page views, feature usage, and error rates only
• Is hosted on our own servers, ensuring full data control
• Does not share data with external analytics companies

6. Data Retention

Document data is only retained temporarily in app memory while you view it. You can clear all extracted data at any time using the "Clear" button in the app. Analytics data is aggregated, anonymous, and retained on our servers only for the purpose of improving the service.

7. Your Rights

You have the right to:

• View all extracted document data displayed in the app
• Clear all extracted data using the "Clear" button
• Control camera and NFC permissions through device settings
• Choose which documents to scan and what data to extract
• Review what analytics data is collected (no personal identifiers are included)

8. 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 privacy policy in the app and updating the "last updated" date.

9. Contact Us

Last updated: August, 2025