Apps tracker automatically records all the applications you have used and for how long.
Detailed reports based on your computer usage.
Worried you are using some application too much, set a daily or weekly limit for it and be notified when the limit has passed.
Group multiple apps into a category and get a combined usage time.
All tracking activity is saved to a local, password protected database.
The data stays local, it is never sent/shared with anybody.
Please submit it to the issue tracker.
Sure, submit a pull request here.
Here you go ... source.