What are some alternatives?
When comparing ConnectUpz and QuickMark, you can also consider the following products
Barcode Scanner - Barcode Scanner for Android
MKH Barcode Reader - This tool can be used to scan QR codes on your PC or tablet. Note: a webcam is required.
SecScanQR - The QR-Code Scanner/Generator that cares about your privacy
Obsqr - obsqr is an open-source, fast and lightweight QR scanner for Android.
QR Droid - QR Droid Zapper
NeoReader - The NeoReader is a universal barcode scanning app that transforms your mobile phone into a barcode scanner, allowing access to mobile web content by scanning codes from virtually any medium