Decent app, but...

Scan QR codes: Awesome!
Make QR codes: Awesome!
Scan bar codes: Awesome!
Scan sudoku puzzles to practice: Awesome!
Scan business cards: buggy. That becomes way complicated. That being said, not a fan of the fact that websites open in its own browser. Would like it more if it went straight to Safari.

Jarudo about QR Reader for iPhone, v5.4