What are some alternatives?
When comparing ClockingIT and Trello, you can also consider the following products
Basecamp - A simple and elegant project management system.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.
GanttProject - Project scheduling and management tool
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.