GeoCatcher is an app that will run in the background and send coordinates to the server you specify every 500 meters. The only time it will use battery life is when it needs those few seconds to send the coordinates. I wrote detailed guides and uploaded a video on how to use this app at http://geocatcher.jesusavina.com. I do NOT collect any information from users that use this app whatsoever. I also will NEVER put any type of advertisements in this app. If you like this app, please leave an honest review and rate it. For any questions, email me at [email protected]. Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life.