The app is a advanced QR code scanner not only simple but also powerful, Scan and Read Bar code, QR code, even Data matrix, UPC-A, UPC-E, Code 39 or 93 or 128, EAN-8, Aztec, EAN-13, Codabar, PDF 417, ITF, RSS-14, RSS-Expanded. Just one step to scan it. Place QR code in center, scale the window to fit the code size in case it is small.