Gone - An ephemeral to-do list
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Simpli - Keep track of email, calendars, notes and more in a unified interface.
Bonsai - One platform to streamline your entire business
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Qbserve - Freelance time tracking, invoicing, and productivity improvement