Smartphone App: Kaywa QR Code
Anyone use (the free version of) Kaywa QR Code for Smartphones
How easy is it to download,use, lookup or generate your own QR?
*A QR or Quick Response code is a two-dimensional barcode. These are often used for adding web links to a printed page. When you scan such a QR bar code using a web cam or mobile phone camera, the QR reader application takes you to a Web site, a YouTube video or some other web content. QR codes are an easy way of sending people to a site without having to type a URL.
You don't mention what platform you are on, but I use QR Droid on my Samsung Galaxy S2 and I have been very happy with it. It is fast on the scan, and has a large list of templates to generate a new QR code (contact, web address, appointment, business card, gelocation, image, just to list a few).
It's free, so if you don't like it, you are out nothing. I tried a few different apps, and this is the one I ended up keeping.