In reply to ByEek:
Ok. Don't know anything about the company involved but if I was being cynical I would suggest that if you could install an app with a secret algorithm which tracks everywhere someone walks in a day, on a lot of smart phones, you'd be sat on a database worth a LOT of money. Just like supermarket loyality cards are a way of targetting promotions. Or even facebook is just a means of spying on the gullable.
