Your phone rings loudly, even on silent (but not in “Total silence” / Do Not Disturb — Android decides that). Tap “Answer”: a map with the child's location and the last 30 minutes' track, the sound around — it starts at once and is recorded automatically on your phone only, the child's battery and network. Buttons: “I'm on my way” (the child sees it), “Write”, “Ring”, “Call 112”, “All OK — close the SOS”. If no adult answers within 2 minutes, a letter goes to the linked e-mail — even when the app is closed.
What the adult does
The help button: what the child sees and what the adult does. For the adult and the child