What is a good QR code scanner app that will work on both iPhone and Android?

I'm trying to put together a show for various vendors to come an show their products to interested customers. At the end of the day, we would like to have a list of which customers showed a great interest in each product. We were thinking a good way to find out if a customer was truly interested would be to put a QR code on their name tag, and the vendor could scan the QR code with their phone and the information about that customer's name and company would be downloaded into a list somewhere. We could then have the vendors email us the lists at the end of the show. Can anyone recommend an app that will do this?

Do you mean to generate the QR Code or Scan it?

Best QR Code scanner for Android is QRDroid.

But for what you want to do, You need software that will scan and store that information.

See this

http://www.qrcodeshowto.com/how-to-scan-a-qr-code/qr-codes-to-excel-spreadsheet-in-real-time-quickmark/

(Note: I have no affiliation with the above and have never tried it)

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