The goMeter is an app that records a freelancer's working activity. While the freelancer works, screenshots will be taken and added to their work diary for review by the company that hired them.
Helpful articles about goMeter:
How to Install goMeter - MAC/OSX
How to Install goMeter - Windows/PC
goMeter Troubleshooting - Windows / PC
goMeter Troubleshooting - MAC/OSX
Using Dual Monitors / Dual Screens with goMeter
How to change goMeter & Work Diary work description / memos