Docus - Docus is a simple yet powerful Document Scanner for Android that enables you to scan various types of documents with great ease.
NAPS2 - NAPS2 is a document scanning application with a focus on simplicity and ease of use.
Scanner Pro - Scanner Pro turns your iPhone into portable scanner in your pocket.
Simple Scan - Project information. Part of: The Gnome Project. Maintainer: Simple Scan Development Team. Driver: Simple Scan Development Team. Licence: GNU GPL v3.
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.
XSane - A good proposal for SANE-2 has been written.