You can download the Mac application from the App Store 🔗
After launching, an icon with the Costlocker logo will appear in your top menu bar. When you click on it, a login dialog will appear.

Mac OS app
After logging in, you will see Time Tracking along with already tracked entries.
Tracking works exactly the same as in the browser. It is described in detail in this article.

Mac OS app - Time Tracking

Innactivity notification
If you have time tracking running but are not active on the computer, the application will notify you and give you options for what to do with the time.
Include Computer Idle Time
This will hide the dialog, and the stopwatch will continue running.
Discard Computer Idle Time
Time measurement will stop at the moment inactivity is detected.
Include Computer Idle Time and Continue
Time measurement will stop at the moment inactivity id detected and will restart with the same task.
Desktop Application Settings are described in a separate article.