When the time is up, you have to put a PIN in to give it the okay. There's a duress PIN, so even in the scenario where a kidnapper forces you to disable the app, it still achieves its goal. The alert is triggered from the server, so even if they smash your phone it still works (albeit without any more location tracking, obviously).
There's ways to handle most worst case scenarios, so long as you accept the possibility of false positives.
http://www.staysafeapp.com
When the time is up, you have to put a PIN in to give it the okay. There's a duress PIN, so even in the scenario where a kidnapper forces you to disable the app, it still achieves its goal. The alert is triggered from the server, so even if they smash your phone it still works (albeit without any more location tracking, obviously).
There's ways to handle most worst case scenarios, so long as you accept the possibility of false positives.