With most businesses and products now a days using QR barcodes its food for thought to look at which ones work the best. Whether at the grocery store, Lowes, Church, School, Shopping from a catalog, in a Doctors office, now a days they all seem to be utilizing barcodes.
I personally use Scan QR by Scan, Inc. And of course your choices are different depending on your phone. Anyway, this may be helpful to read.
Thanks for stopping by. Enjoy!