Smart phones used to scan QR codes are often expensive in comparison with simpler phones.
Relatively new barcode type, people are not much familiar with its use. Requires training in order to fully understand the concept.
Not very aesthetic, it contains random patterns of square boxes which might not look pleasing on products unlike 1-d barcodes.
BarCode Generator SDK screenshot
Used for document management, tracking products and time, inventory management, item identification and marketing purposes.
Widely used in automotive companies in Japan.
Business cards often contain QR codes inscribed on them which may contain related information to the websites or the links to the resume of a person.
QR code enabled scavenger hunt was introduced by Starbucks for promotion purposes which contained information regarding the hints encoded in the QR code.
Darling National Wildlife Refuge in Florida (USA) uses QR codes in trails which contain links to the detailed information regarding the animals.