A "Launcher" is a software application or tool that helps users access and manage other applications on their devices. It typically provides a user-friendly interface, allowing users to organize their apps, customize their home screens, and quickly find what they need. Launchers are commonly used on smartphones and tablets, but they can also be found on computers. In the context of mobile devices, launchers can offer additional features such as themes, widgets, and shortcuts. Popular examples of launchers include Nova Launcher and Microsoft Launcher, which enhance the user experience by providing more personalization options and improved functionality.