App Switch is described as 'small utility app that is ment for mutiple display users. When utilising the Command (?)+Tab function, your mouse will automatically set it self to the middlle of the screen in which that application is open in' and is an app in the OS & Utilities category. There are four alternatives to App Switch for Mac. The best alternative is Command-Tab Plus. It's not free, so if you're looking for a free alternative, you could try Manico or SpaceLauncher.
Command-Tab Plus Is a Powerful and Customizable macOS App’s and Windows SwitcherCommand-Tab Plus is designed to help you switch between apps and windows in a faster and more convenient way. A great alternative for Mac App’s switcher.
LiteSwitch X follows the tradition of LiteSwitch as a simple solution for managing open applications using the keyboard. Like its predecessor which will continue to be available, LiteSwitch X has a clean, simple and functional style that has become Proteron's hallmark.