If the phone still pings (system ding) but you never hear a short sonar, you are on an old install or a silent channel. Uninstall first (Settings → Apps → EWS GPS Keep-Alive / EWS Field GPS → Uninstall), then install this APK. Updating in place can leave the old alert channel.
After install, the app title is EWS Field GPS and the screen says v1.4.2. Status is on-screen only. Tray is silent; app plays one sonar on media volume when share starts (not every GPS fix / network heartbeat).
1. Download APK v1.4.2 (after uninstall) 2. Open Field GPS for this site (auto URL + token + start)NordVPN: exclude EWS Field GPS (split tunneling) or disconnect Nord while sharing — otherwise posts fail and the pin drops after a few minutes.
Deep link: …
Base URL filled into the app: …