In continuation of the topic
s11a `about
QR codes and datatatresses , I want to share a link to another program (for me - very nice), called
I-Nigma .

You need to download it directly from your mobile phone (about 450kb), by going to
i-nigma.mobi, you should determine your phone model and download the appropriate version. Also on the site
i-nigma.com you can create your QR-code.
I noticed that, unlike Kaywa Reader, the result displays even faster and recognizes rather muddy QR codes. In general, experiment :)
Successful use! :)