Some PeopleVine features (coupons, loyalty cards, memberships, tickets) include an option to utilize QR codes. PeopleVine generates the QR codes on your behalf but you will need to add an app to your mobile device in order to scan them.
There are both free and paid QR reader apps available. We tested some out for you:
QR Scanner, Quick Scan, Bakodo, Red Laser, and Qrafter either didn't pick up alternate color codes or had too many advertisements.
Scan-QR Code and Barcode Reader is currently $1.99 (on sale from $4.99) but offers great performance at higher speed than the free options, with no disruptive ads.