100% Offline • No Ads • Local Storage Only • Zero Tracking
Privacy Policy for VitalLog
Effective Date: September 24, 2026
Thank you for choosing VitalLog ("PersonalLogger", "we", "us", or "our", application ID: org.aztest.personallogger). We are deeply committed to protecting your privacy and ensuring you have complete ownership of your personal data. This Privacy Policy explains our offline architecture and how data is handled in our mobile application ("App").
Medical Disclaimer: VitalLog is designed strictly for personal logging, habit tracking, and informational self-monitoring. It is not a medical device, nor does it provide medical advice, clinical diagnosis, or treatment recommendations. Always consult a qualified physician or healthcare provider for medical advice.
1. Information We Do NOT Collect
VitalLog is a 100% offline, privacy-first mobile application.
- We do NOT collect, transmit, store on remote servers, or share any personal health or logging data (such as blood pressure readings, heart rate / pulse measurements, notes, glucose values, or custom metrics).
- We do NOT require account registration, passwords, email addresses, or cloud logins.
- We do NOT collect device identifiers, advertising identifiers (AAID), or geolocation data.
- We do NOT display advertisements (zero ads).
- We do NOT integrate third-party analytics, behavioral trackers, or advertising SDKs.
- We do NOT operate external tracking servers or sync your data to cloud infrastructure.
2. Local On-Device Data Storage
All tracker configurations, custom fields, logged measurements, session timestamps, and guideline targets are stored exclusively on your physical device using Android local database storage (SQLite).
Your data stays on your device at all times under your sole control. You can edit individual records, clear specific tracker histories, or erase all app data at any time from within the App Settings or via Android system settings. Uninstalling the App permanently deletes all local database files.
3. Data Export, Backup & Sharing
VitalLog provides user-initiated tools to help you manage your personal records:
- CSV & JSON Export: You can export your data to standard CSV spreadsheets or complete JSON backup files using Android's system file picker (Storage Access Framework).
- Direct Sharing: You can share exported files (for example, sending your blood pressure trends directly to your doctor) via the standard Android System Share Sheet. This uses a secure Android
FileProvider.
Exporting or sharing data is entirely voluntary and is executed only when you explicitly tap the respective action. No data is ever transmitted automatically or without your direct action.
4. Device Permissions
VitalLog operates with minimal system permissions:
- No sensitive runtime permissions: The App does not request access to your location, camera, microphone, contacts, or phone state.
- No Internet Permission required for logging: Core logging, calculations, session aggregation, and charting operate completely offline.
- File Access: Temporary file access is restricted strictly to user-initiated CSV/JSON export and share actions using standard Android system security boundaries.
5. Children's Privacy Compliance (COPPA & GDPR)
VitalLog is safe for users of all ages. Because the App does not collect, transmit, or share any personal information from any user, it fully complies with the Children's Online Privacy Protection Act (COPPA) and General Data Protection Regulation (GDPR).
6. Changes to This Privacy Policy
We may update our Privacy Policy periodically. Any updates will be published on this page with a revised "Effective Date".
7. Contact Us
If you have any questions, feedback, or concerns regarding this Privacy Policy, please contact us at: