There are many QR scanners. Here's one for Android and for itunes
NAVIGATING ARTS AND CULTURE ON CAPE ANN: THERE’S A FREE NEW APP FOR THAT!
With support of an Adams Grant from the Massachusetts Cultural Council
The 4 Cape Ann cultural districts, seARTS and the Cape Ann Chamber of Commerce have all teamed up to create the best and most convenient arts and culture travel guide dedicated to Cape Ann. Users can download this FREE mobile app instantly, anytime, anywhere to navigate the best of Cape Ann creativity.