Crystal: Sketch Mirror for Android - Crystal: Sketch Mirror for Android is an application that is designed for viewing your sketch designs in real-time, navigate prototypes and download content related to the sketches for offline viewing.

Docr - Docr is a free app for the iPhone smartphones that lets its users scan all of their documents into sharp images and, in the end, store them as PDF files.

Sketch Mirror - Preview your iOS designs directly on your devices

Tiny Scanner - Fast and easy to use mobile document scanner.

Flowkit - Sketch library for user flows/content maps/annotations

Scanner Pro - Scanner Pro turns your iPhone into portable scanner in your pocket.