Exeunt

Close an app's last window and the app quits too. Red button, Cmd+W or File > Close: once the last window's gone, so is the app.

Download for Mac (free)

macOS 13 or later, Apple silicon and Intel. Signed and notarised. Source on GitHub.

I used RedQuits for years, but it's Intel-only and goes when Rosetta does. Swift Quit relies on a "window closed" signal that macOS 26 stopped sending. Exeunt counts an app's windows just before you click or press Cmd+W and again just after: if there were some and now there are none, it quits the app.

Exeunt's setup checklist: Accessibility access and open at login ticked green, then a try-it step

Exeunt's settings: an on/off switch, quit every app except a list or only listed apps, open at login and show in menu bar

What you get

A setup checklist that ticks itself off as you go, and comes back if a step comes undone.
Your choice of apps: quit everything except a list, or only the apps you list. Finder is never quit.
Open at login, on by default, and an option to hide the menu bar icon.
Nothing collected. No network access at all. It needs Accessibility access to count windows, and that's it.

Free and open source under the MIT licence. Questions or bugs: GitHub issues or the support page.