@scanman1 wrote:
With a rooted Android device and a GPS spoofing app, you can get a geotag code for anywhere on the planet.
Most shoppers probably aren't the right combination of dishonest and tech-savvy to spoof a location tag, so you can probably safely assume 99% of GeoVerifies are from genuine physical presence at the location. But all GeoVerify proves is that you drove to the parking lot and grabbed a code.
Similarly, a business card only proves you've been to that location at some point or know someone who has. A receipt at least proves you were there at the right time and went inside, so it does more than GeoVerify, but it does require that you buy something. So for most shoppers, GeoVerify is slightly more reliable evidence of shop completion than business cards, but not as reliable as receipts, with the added bonus that you don't have to buy anything.