There are DOZENS of companies after this space with solutions ranging from point-of-sale, to beacons (facebook was aggressively rolling into this space, have heard less after privacy missteps), to WIFI range tracking, to some combo of the above.

Aura is a "smack self on forehead" level of ingenuity / execution - I love it, think you guys are on to something big. Look at the institutional market too - literally an analytics dashboard / workflow that provides forward looking reporting on traffic / trending would be hugely valuable to REIT scale funds.