Privacy-first architecture

Last updated: October 24,

Privacy Policy

At DATEMApp, privacy isn't a feature—it's the foundation. We built an environment where your health data and medical history belong exclusively to you.

On this page

  • Data Collection
  • Local Storage
  • Cloud Sync
  • User Rights
  • Privacy Policy Details

Question?

privacy@datem.app

Data Collection: Zero-Knowledge

DATEMApp does not run a central server for user records. No account profiles are required to use local health journaling. Clinical entries are processed directly on-device.

Your Sovereign Rights

Because data is local-first, you can generate your clinical summary in PDF (DATEM Pro), delete, or keep silent at any time. No data broker profile is generated by DATEMApp.

Optional Cloud Sync via Google Drive AppData (DATEM Pro)

If you enable backup with DATEM Pro, the app uses OAuth with scope drive.appdata to store backups in your private Google Drive AppData folder. This folder is app-private, not visible in standard Drive UI, and inaccessible to DATEMApp operators.

Privacy Policy - Datem APP

  • Data We Collect:
  • Purchase History & Identifiers: Through a third-party provider, we collect transaction history and user or device IDs (IDFA).
  • Google Authentication: We use Google services strictly for Google Drive synchronization purposes. This information is not used for user profiling or app login.
  • Purpose of Data:
  • Receipt and purchase validation.
  • App functionality and performance analytics.
  • Cloud synchronization within your personal accounts.
  • Medical History Privacy:
  • Datem APP does not host your medical data on our own or third-party servers.
  • Your medical data is stored exclusively on your device or in your personal Google Drive account (DATEM Pro) at your discretion.
  • We do not share your medical data with any third parties.
  • Local Processing (No Transmission):
  • The app uses internal tools for user interface, notifications, and technical configuration that operate strictly locally. These components do not transmit any information externally.
  • Future Updates & Analytics:
  • We may implement analysis tools to understand feature usage and improve the product. All data will be **anonymized** and will never include medical history data.
  • Advertising:
  • We do not perform tracking for advertising purposes.
  • Data Deletion:
  • To delete your information, simply uninstall the app and remove the associated content from your cloud provider (typically found under third-party app management).

DATEMApp at a glance

DATEMApp is a free mobile application for personal health self-management on iOS and Android, built with a local-first architecture where your clinical records reside on your device without user accounts or central servers.

What it is
Personal health journal and medical history tracker to organize doctor visits, vital signs, prescriptions, and diagnostic studies.
Who it is for
Patients and individuals managing their personal health history or family and pet care (not designed for healthcare providers).
Where data lives
100% on-device in local SQLite via WatermelonDB. Protection at rest is provided natively by the mobile operating system (iOS Data Protection and Android FBE).
Platforms & requirements
iOS 17.6 or later (iPhone) and Android 11 or later (API level 30+).
Free vs. DATEM Pro
Free: journal timeline, appointments, vital signs with MAP calculation, OMRON and FreeStyle monitor import, vaccines, deworming, and primary profile. DATEM Pro: optional Google Drive backup, additional profiles, and Clinical Summary PDF reports.
Privacy & advertising
Zero commercial advertising SDKs, zero marketing telemetry, and no central servers holding clinical data. No email or user account required.
Google Drive backup deletion
Backups use the isolated drive.appdata scope. Cloud data can be deleted anytime at drive.google.com > Settings > Manage Apps > DATEMApp > Delete hidden app data.
Supported languages
English, Spanish, and Brazilian Portuguese.