Journalistic - A simple, yet powerful micro journaling app
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Day One - A simple journal application for the Mac, iPhone, and iPad. AboutTo learn more about Day One, see these two excellent reviews . PublishPublish is not available in Day One 2.
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
Punkt - Private & secure one-sentence journaling
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.