We are planing a geo caching game, where we want to use QR Codes. Each time a player scans a QR Code, he will be redirect to a specific landing page.
To each QR Code we want to add geo information like an address or lng/lat. So we can find out, where and how often the QR Codes have been scanned, without asking the mobile device to send its location to us. Is there a service, that provides tagging a QR Code with a geo location?