iOS application

iOS 15 introduces the Screen Share API, as well as support for Safari Web Extensions. Is it possible now to make an ActivityWatch app for iOS?

Unfortunately not. The new API does not let other applications retrieve the usage data, only manage restrictions.

Apple was very blatant in the announcement video for the API that “there is no way for anyone outside of your family, or even Apple, to know which websites you’ve visited, or which apps you’ve used”:

your good question and interesting information but i am not idea.