Macro Deck - Use smartphone as macropad for pc
Logitech Options - Customisation of Logitech mouse or keyboard settings, device information, additional functionality...
TouchPortal - Touch Portal is a companion app to control a PC or a Mac by using a deck of buttons to improve the workflow & productivity of game streamers, content creators and professionals.
Logitech Unifying Software - Add devices to your Unifying receiver. This software will allow you to add or remove compatible mice, keyboards and other devices to your unifying receiver. The tiny receiver stays plugged in.
Unified Remote - Unified Remote is a software app available for iPhone, Android, and Windows Phone mobile operating systems. It's designed to turn your smartphone into a universal remote. Read more about Unified Remote.
Harmony Express - A universal remote with Alexa built in