What are some alternatives?
When comparing ConnectUpz and Scan QR Code Reader, you can also consider the following products
Barcode Scanner - Barcode Scanner for Android
QR Droid - QR Droid Zapper
QuickMark - QuickMark makes everything possible.
QR BARCODE SCANNER - QR barcode scanner is the fastest and most user-friendly for scanning barcode.
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