Universal QR Code Scanner is a really simple and easy to use.
If you have a URL, it will open in a new tab just milliseconds after the scan is complete. Otherwise, it will show you what information is hiding. It is usually text or numbers.
Universal QR is Super Fast, It works universally with 13 different Barcodes/QR Code variants too.
This app supports:
1D Barcodes: EAN-13, EAN-8, UPC-A, UPC-E, Code-39, Code-93, Code-128, ITF, Codabar
2D Barcodes: QR Code, Data Matrix, PDF-417, AZTEC