EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.

MyStory.today - MyStory.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Writer by Fregat - Writer by Fregat is an efficient mobile application that helps you to write stories, poems, screenplays, and quotes right on your smartphone.

Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.

Auctor - Auctor is an interactive mobile app that enables you to writes screenplays or stories and creates characters along with their arc of change.