Chocolatey NuGet is a Machine Package Manager, somewhat like apt-get, but built with Windows in mind. It is built on top of NuGet command line and the NuGet infrastructure.
Npackd (pronounced "unpacked") is an application store/package manager/marketplace for applications for Windows. It helps you to find and install software, keep your system up-to-date and uninstall it if no longer necessary.
The Snap Store gives you instant access to thousands of free and open-source applications. And now you can buy apps from some of the leading providers too. All our software is easy to find and install so you can have a customised desktop that suits you in no time.
just-install - The stupid package installer for Windows.Discontinued
From the GitHub repo: "This project is no longer being actively developed. We suggest you to switch to Microsoft's winget."
The Mac App Store is the best place to find apps for Mac. No more boxes, no more disks, no more time-consuming installation. Just like the App Store for iPhone and iPad, click once to download and install any app on your Mac.
Deepin Software Center, aka DSC, is one of the most talked about applications of Linux Deepin. Installing new applications is just a one-click operation. DSC supports parallel downloading, resuming downloads, update notification and cache cleaning.