Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Tomato Timer - TomatoTimer is a flexible and easy to use online Pomodoro Technique Timer
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
Tasklog App - Tasklog App is an agile productivity software designed to meet the needs of current world freelancers.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
YAPA - Pomodoro timer