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I need to read different bar codes, and would be great that I can use my iPhone for that. Currently I have an application to read QRCodes but I'm looking to read PDF417 too.

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2 Answers 2

up vote 2 down vote accepted

I use
RedLaser for "normal" codes and ZBar for QRCodes.

These are the fastest and most stable I could find. Plus, they are both free.

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Red Laser has just updated to read more types of barcode. Plus it's free.

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