Scanner Pro - Scanner Pro turns your iPhone into portable scanner in your pocket.
CamCard - CamCard reads business cards and save instantly to phone Contacts.
Scanbot - Scanbot is a mobile app that allows you to use your device's camera as a document scanner. The app is capable of scanning a large number of source materials, and it can handle QR codes as well.
ABBYY Business Card Reader - Scan cards ≡ in a second and manage them everywhere ☁
Genius Scan - On The Go.
Sidekick by Hubspot - Customer insight integrated with your email tools.