Sources:AppImageLauncher makes your Linux desktop AppImage ready™. By installing it, you won't ever have to worry about AppImages again. You can always double click them without making them executable first, just like you should be able to do nowadays. You can integrate AppImages with a single mouse click, and manage them from your application launcher. Updating and removing AppImages becomes as easy as never before.
Due to its simple but efficient way to integrate into your system, it plays well with other applications that can be used to manage AppImages, for example app stores. However, it doesn't depend on any of those, and can run completely standalone.
How it works
AppImageLauncher is responsible for the desktop integration. When the user launches an AppImage, the software checks whether the AppImage has been integrated already. If not, it displays a dialog prompting the user whether to run the AppImage once, or move it to a predefined location and adding it to the application menus, launchers, etc.
https://github.com/TheAssassin/AppImageLauncher
https://www.opendesktop.org/p/1228228
Need for it: Makes AppImage installation simple without needing to add/remove menu entries manually.