InspectQr is the ultimate scanner !
Datamatrix -- QR -- EAN-UPC barcodes...

It supports all type of QRs encoding: Latin,UTF-8, ECI
Japanese QRs : Kanji, SJIS

Once scanned, you can save the code in your collection and give it an alias :
* "Menu Restaurant"
* "Association "

All type of code document is supported: PlainText, URL, Contact, Phone, Geo, SMS, Email, Wifi...

inspectQr has the ability to save the original Qr, datamatrix... code picture
It's useful if you need to :
-Recover a worn QR
-Scale up a tiny datamatrix.
-Remove a logo on a Fantasy QR

Adavanced Functionalities will give information about the code properties
Raw data, Size, Error Correction (ECC) level...

It's free and has no ads!