Genius Scan - On The Go.
Quick Scan - A scanner utility that enables you to quickly scan documents and manually set the DPI level...
HD Scanner - Turn you phone into portable scanner for documents, receipts, business cards, etc.
Bfery Easy Scanner - Bfery Easy Scanner is a cross-platform solution that helps you scan certificates, documents, reports, tickets, and more with great ease.
Docutain - Digitize, manage and find documents efficiently. With Docutain, your smartphone not only becomes a scanner, but you also get a complete and secure document management system including a QR code scanner.
TurboScanner HD - TurboScanner HD is an app for iOS that enables you to convert the iPad or iPhone into a useful scanner and also serves as small fax or air printer in your pocket.