Ubuntu Software Center or simply Software Center was a high-level graphical front end for the APT/dpkg package management system. It was free software written in Python, PyGTK/PyGObject based on GTK+. Developed by Canonical, Ltd.
License: Open Source
Npackd is a package manager primarily for Windows that offers a wide range of applications with a user-friendly interface, while Ubuntu Software Center is designed for Ubuntu users, providing access to official repositories and snap packages. The key difference lies in their platform focus and the types of applications they manage.