Sentinel

Sentinel runs silently in the background and periodically delivers your device's GPS location to the people you choose.

Configure recipients in priority-ordered groups. Each ping includes your coordinates, accuracy radius, and a Google Maps link. If the primary group fails to deliver, Sentinel automatically falls back to the next one.

Recipient types:
• SMS — sent directly from your device
• Telegram — via a bot you control

Features:
• Configurable tracking interval (1 to 60 minutes)
• Manual "Send Now" for on-demand delivery
• Delivery log with full history
• Battery optimisation exemption prompt for reliable background operation
• Device name label in every message

Sentinel stores nothing on external servers. Your location goes only to the recipients you configure.
- Screenshots — you need at least 2 phone screenshots. Connect your device, open the app, take screenshots of the home screen and the configuration screen. Transfer them to your computer and upload them here. Minimum size: 320×568 px, maximum: 3840×3840 px.
- Feature graphic — a 1024×500 px banner image. Can be simple: your app icon on an indigo background with the word "Sentinel" in white. Any image editor works; even a quick Inkscape file is fine.