Errors Are More So the Cameras Lack of Focus than the App.
I gave 4 stars for the app – 1 star for the cameras ability to be used as a scanner. Perhaps the real fix is adding a Zoom Function to enlarge the image within the app.
To make a real-world functional test, I built a simple cardboard box of the right height to space and stabilize the camera so the barcode was lined up and not moving around. I then could see that the real issue with All Barcode Scanner Apps is actually the lack of close focusing with the iPhone/iPod camera. For this reason also, lighting becomes an issue for even if light is good but out of focus, the thin lines will disappear becoming unidentifiable. These problems create the 3rd issue with all such apps; scanning speed. You wait because the app is attempting to read the out of focus barcode. Once the barcode is read correctly, the rest of the process is quick to finish.
I chose this app for testing as it can build a list. What I was looking for (and what I think is of greater value) is an app to scan barcode for building a list that I can cut/paste or email for adding the data to a database (like inventory). This app did ok for that task after deleting the extra (unwanted) info.
Used with iTouch 4G iOS 5.1
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Barcode Scanner - Scan Barcodes Free