When comparing Ninite vs just-install, the Slant community recommends Ninite for most people. In the question“What are the best Windows package managers?” Ninite is ranked 7th while just-install is ranked 13th. The most important reason people chose Ninite is:
Save yourself from having to manually update all those small apps that don't auto-update themselves.
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Pros
Pro Handles updates for you
Save yourself from having to manually update all those small apps that don't auto-update themselves.
Pro Well adapted to the Windows environment
Pro Install in bulk, without the restarts
Perfect for getting a fresh install of Window up to speed in as little time as possible.
Pro No toolbars or extra junk
Ninite's installation does not install "extra features" offered during installation.
Pro Saves you from manually filling in all the details of installation
Installs apps to their default locations, using your PC's language or one you choose, using Internet Explorer's proxy settings (so you can quickly get Chrome, Firefox, or Opera up and running on a fresh Window install).
Pro Curated list of commonly used quality software
Everything from Steam and iTunes to Putty and Eclipse - likely has most, if not all of the major free applications you use on a regular basis. Check the website for the full list.
Pro Verifies file checksums
Ninite makes sure that you've downloaded the right file, and that it's not corrupted, by checking the file checksums for each application. This means that you're less likely to end up with a buggy app, or to accidentally download malware/viruses, all with no extra work.
Pro Open source, free and libre
Pro Works within Windows guidelines
The programs are listed in Control Panel and can be uninstalled using standard Windows procedure. Downloads from original source, doesn't repackage. It just automates the install process, skipping prompts and dialogs.
Pro Can install bundles, without needing command line parameters
Like Ninite, you can create a custom .exe installer which automatically downloads and installs a package selection -- no command line switches needed. https://just-install.it/customizer.html
Cons
Con Limited selection of apps
Con Installs apps only in their default location
Very unfortunate for those having their system on a budget or even mid-tier SSD.
Con No command-line interface in free version
Con Limited package selection
Since project is open source there is way to add new packages, but you'll have to figure out how to configure new package and submit pull request. There's no army of volunteers responding to requests.