Timing Sync shows you what apps, documents and websites you spent (wasted?) time on and helps improve your productivity. It automatically syncs across all your Macs, giving you the complete picture of how you spent your time. You can think of it as the equivalent to iOS's Screen Time, but for Mac.
No major cons.
The only disadvantage of this application is that there is no competition. I use Timing from 1.x version. Since then, no program has been created that could replace this application.Paweł Sobierski has used this product for one year.