sending mobile gps location to server

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I need an iPhone and android app which sends current GPS coord data to a server. It sends GPS data every X seconds.
it must continue to send GPS data.
The UI is very simple.
The most important thing is to get highly accurate GPS location data and to minimize the battery power consumption.
user recives from me pin number and a download link by mail.

1. user download the app
2. upon installing the app user has menu button where he can put his personal pin number i gave him
3. app send gps coords and personal pin number to predefined url to my server by post.
4. user can enter and store more then one pin number to the app. in this case app will submit all pin numbers stored in the phone as array + gps location
to my server url by post

thats all

Skills required:
Java, Javascript, Objective C, PHP
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