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There are many apps that allow you to track your phone. Apple even went as far as to include one with iCloud. But one weakness all those apps have is their ineffectiveness to help you find your phone in the event that your battery dies. Last Alert hopes to change that. The app does three things: it alerts you when your phone is about to die; right before it does, the app sends you an email with the location of your phone right before its battery crapped out; then it allows you to use another iOS device to use those coordinates to track down the lost iPhone. This is one of those things you will wish you had only when you lose your dead iPhone.