corefreq is described as 'CoreFreq, a CPU monitoring software with BIOS like functionalities, is designed for the 64-bits Processors of architecture Intel Atom, Core2, Nehalem, SandyBridge and superiors; AMD Families from 0Fh ... up to 17h (Zen , Zen+ , Zen2), 18h (Hygon Dhyana), 19h (Zen3)' and is an app in the system & hardware category. There are more than 10 alternatives to corefreq for a variety of platforms, including Linux, BSD, Mac, Windows and Flathub apps. The best corefreq alternative is htop, which is both free and Open Source. Other great apps like corefreq are btop, Resources, Glances and BPYTOP.