Aware is a menubar app for macOS and visionOS that displays how long you've been actively using your computer.
View in Mac App Store or download the latest release from GitHub.
Requires Xcode 10.2
$ git clone https://github.com/josh/Aware
$ cd Aware/
$ open Aware.xcodeproj/
Copyright © 2016 Joshua Peek, Patrick Marsceill. All rights reserved.