Does not work for UPC, i.e. most American loyalty cards

Most American store loyalty and reward programs use UPC-A barcodes, but this app generates, I think, EAN-13 barcodes. Some of the reward and membership cards I carry use Code 39 or Code 128 barcodes.

Add UPC, Code 39, and Code 128 and Ill give a much better rating. Id even pay for it.

TravisTX about BarCode