<P> In its simplest form, an interaction (or transaction) between a pass and a system is facilitated by a 2D Barcode or the modern QR code although it requires the customer to initiate the activity . </P> <P> In late 2014, the first known implementations utilizing the iBeacon wireless geofencing started to appear in retail locations in the US . The iBeacon solutions allowed the retailer to broadcast an unsolicited lock - screen notice onto smartphones within Wi - Fi range, which is about one thousand feet . </P> <P> In 2015, Apple incorporated the ability to present a loyalty card in Wallet to a point - of - sale terminal via NFC . Walgreens enabled this first with their Balance Rewards loyalty program; customers can add add their card to Wallet through the Walgreens or Duane Reade mobile apps and tap their phone to the terminal when prompted for their rewards card . </P> <P> Passes can be distributed via email, SMS, MMS, social media, an app, and as QR codes . </P>

Where do i find the apple wallet app