DeltaSalesApp - Field Sales Force Automation & Field Force Tracking Software
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
ReachOut - ReachOut is a field service management suite to streamline field processes with customizable mobile-based forms and workflow.
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
Service Cloud Field Service - Service Cloud Field Service is a cloud-based field service solution designed to initiate customer service activities from anywhere.
Standard Notes - A safe place for your notes, thoughts, and life's work