I just tested the barcode reader functionality for mobile, using an IPhone 7. It has a very hard time scanning smaller (1.25 inches across) code 128 barcodes.
This is not a limitation of the iPhone, since my other iPhone barcode app (Rawcodescan, in the apps store) has no problem with the same scans.
I think it would help a lot to limit the size of the scanning window and explicitly identify where the scanner is looking. Check out rawcodescan as an example. If you can't make scanning work well on small barcodes, it is nearly useless to me.
Thanks, Roy
