I think WebWork Tracker is doing the job very well. You can be sure that tracked tasks are done and time spent on them is monitored at the high standard. This is the tool that will allow you to spend your money only on relevant work.
WebWork Time Tracker for
Windows
Automate time tracking with WebWork Windows Tracker. Create a free account to be aware of your team’s time and boost their productivity.
Time Tracking Features for Managing Employees
Manage remote employees with WebWork Time Tracker. Download WebWork to get detailed reports about your employees’ work process including screenshots, activity level and app/website usage. Use the latter to boost the productivity and morale of your team.
More Features
More than 30K Windows users track with WebWork Tracker
Can I install the tracker and start tracking time without registering?
No, in order to start tracking you need to have an account. You can do so here
You can also sign up with your Google account.
Does WebWork work for Windows 7?
Yes, but note that you need to install the version for Windows 7.
If I work with two or more different operating systems at the same time, do I need to install the tracker on each one?
Yes, you need to install the tracker separately on each operating system.
If I work with several monitors, how many and which monitors will be screenshotted?
All monitors are captured by default settings, however, you can change it from the settings and choose which ones can and cannot be screenshotted.