Tomato Timer - TomatoTimer is a flexible and easy to use online Pomodoro Technique Timer
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Tasklog App - Tasklog App is an agile productivity software designed to meet the needs of current world freelancers.
doo - A smart, simple app for reminders and to-dos
YAPA - Pomodoro timer
Laverna - Laverna is a JavaScript note taking application with Markdown editor and encryption support.