Classic Shell - Classic Shell was developed for Windows 8 since that was the first version of the popular operating system to forgo the iconic Start menu.
Fluid - Turn Your Favorite Web Apps into Real Mac Apps.
Start Menu X - Start Menu X with Start Button. Power users know how inconvenient and time-consuming it is to launch programs from the system menu.
WebCatalog - Run your favorite web apps natively
Start8 - Start8 returns the familiar Start menu to Microsoft's latest Windows 8 operating system.
Unite for macOS - Turn websites into native apps on your Mac.