QRP tracker apps can be installed directly from an APK.

  1. On your device: Settings → Security and privacy — turn off Auto Blocker (or allow Install unknown apps for your browser or file manager).
  2. Download the APK to your Downloads folder.
  3. Open the file with your file manager and tap Install. If blocked, choose More details → Install anyway.
  4. Open the app and start tracking.

These are BETA apps. Data stays on your device. Feedback is welcome via the contact address on the About page.