What for Teams Features:

Pay by subscribtion. Includes an improved What Desktop application and a cloud computing service.

The time data is sent to the web
The desktop application sends the time data to the Web. You can have several people on their desktop application working for the same project.

Web users by project and by employee
You can create Web users accounts, and allow them to view time reports for a specific project or time reports per employee.

Project time control by discipline
What Software organize tasks by discipline. The User Administrator is allowed to rename the disciplines depending on the type of business of the company.
For example, a software company may like to rename them to: Requirements, Development, Testing, Implementation and Deployment, Sales, and Project Management.

On line reports
Compare different projects (time per discipline).
Track actual time vs estimated time by employee, project or discipline.