PacmanXG!

Synaptic is a graphical package management program for apt. It provides the same features as the apt-get command line utility with a GUI front-end based on Gtk+.

A software manager for the Linux Mint operating system to easily install new applications.

Octopi is a GUI package manager built on QT that makes using both of the Arch/Manjaro prime terminal package managers - pacman & yaourt - simple point & click operations.

Graphical Package Manager for Manjaro Linux (based on libalpm).

NeoSetup is a brand new concept of application installer and updater for Windows. It detects updates quickly and installs them at a click of a button. It will perform automated application installations from a collection of the most popular Windows programs. Updates are detected and delivered to you as soon as they are released, ensuring that you have the latest versions immediately after their official launch.

kalu (which could stand for "Keeping Arch Linux Up-to-date") is a small application that will add an icon to your systray and sit there, regularly checking if there's anything new for you to upgrade. As soon as it finds something, it'll show a notification to let you know about it. Very classic stuff.

tkPacman is a lightweight graphical user interface for 'pacman', the package manager of Arch Linux.