GPSVoice

GPSVoice is a unique location sharing app that lets you share your location with callers when you can't take their call. By combing voicemail with location sharing, GPSVoice opens up a range of useful everyday situations.

Easily locate loved ones who aren't picking up the phone. You can find your own phone simply by calling it. If your battery dies while someone is looking for you it will let them know your last known location. It uses minimal power consumption, only requires phone number + email for signup and works without anyone else needing to install the app.