only 3 percent of retailers use beacons; just 16 percent had plans to try the technology in the foreseeable future. When Reveal Mobile, an analytics company, did a census of beacons in U.S. retail stores this spring, it found that Apple's own stores accounted for about 15 percent of the existing beacons.  Companies that sell beacons to retailers struggle to point to big success stories. For the people who run startups such as Shopkick, InMarket, or Estimote, which are based on bets that beacons will soon be everywhere, the issue is more expectations than results. Sure, the startups admit, it’s been slow going, so far. But over the summer, both Facebook and Google announced new programs for their own beacons, joining Apple as tech giants behind the technology.

http://www.bloomberg.com/news/articles/2015-11-24/apple-s-failed-retail-revolution-beacons-still-won-t-be-big-on-black-friday