Productive Peach is a freeware cross-platform desktop application which automatically takes screenshots of your desktop to help track your computer usage. It’s great for tracking productivity and billing!
With Productive Peach you always have proof that the amount of hours billed are the actual amount of hours worked — and if you’re stretching the truth a bit you know that as well. So you can essentially bill every single hour no matter what. Productive Peach takes a different approach towards tracing your work habits and billing your clients. Instead of worrying about recording everything you do, do the things you want to do… then when it’s time to bill, record whatever you need to record after reviewing the screenshots with the timestamps.