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None of the above services work in real-time.

Many Samsung phones have additional functionality built in to do this, on other phones some have it also and some need an app.

Some recent Samsung phones also have a rarely-mentioned function affectionately dubbed the "Rape alarm" which is a shortcut key you can press at any time, which silently takes a picture with both cameras, and sends this along with your GPS co-ordinates and/or an audio recording to a list of people you designate in advance. Course that depends on the user actually triggering it on the device, rather than remotely.