QR コード (QR Code)
Japan has two mobile traditions that other countries have yet to really pick up on. One is infrared (赤外線) data transfer (for swapping contact information quickly) and the other is QR codes. While the iPhone doesn’t have infrared capabilities, you can get this app which will whip up a QR Code containing your contact information for someone with a traditional Japanese mobile phone to scan (don’t worry, Japanese mobile phones are light-years ahead of current iPhone apps for being able to successfully decode QRs).
While primarily useful for giving your contact information, you may also want to read some QR data from time to time and my experience (I’ve tried about 5 different apps) is that this app also offers the most reliable reader. See the screenshots below for proof that it works.
Developer: Ryo Shimizu
Price: FREE (Pay-version upgrade $0.99)
App Store: Get QR Code at the iTunes store
uquery link: QR コード