What are some alternatives?
When comparing BeeTagg QR Reader and Obsqr, you can also consider the following products
ZBar bar code reader - ZBar bar code reader
Barcode Scanner - Barcode Scanner for Android
QuickMark - QuickMark makes everything possible.
iCody WiFi Barcode Scanner - Eventually, you can replace your boring USB barcode scanner by an astonishing iOS app.
MKH Barcode Reader - This tool can be used to scan QR codes on your PC or tablet. Note: a webcam is required.
QR Droid - QR Droid Zapper