INCHMAN1900··on Gumroad says its flat fee is 10%, but I doubt thatIt's a free application and people pay it on their own will. I was shocked by the percent the platform took.
INCHMAN1900··on Show HN: Chrome extension to track how your time are spent on the internetThe plugin is completely offline. It uses manifest v3, and there is no internet permission request in manifest.json(which you can view in plugin's detail page), so the data it collected can only be used on your machine.