Cuban council's moodstats[1] is an app that I wish was still available. 90's pixelpushing in the extreme but still pretty nonetheless. It allowed you to track several subjective metrics over time.

With these mood tracking apps however the outcomes are probably simple aren't they? If you're not happy at work whatcha gonna do? Get a new job or have an argument with your boss.

[1] http://www.cubancouncil.com/work/project/moodstats