RescueTime
Used by 6 peoplerescuetime.com ↗

“I recently started using RescueTime to track how I use my time when I'm on my laptop and it is, as I expected, horrifying.”
Laura Olin Interview, Digital strategist · via Uses This 

“I use RescueTime on all my machines to get a rough idea of how much work I'm getting done each week.”
Neha Narula Interview, PhD student, data scientist, developer · via Uses This