Google Now Alternatives
Google Assistant is a virtual personal assistant developed by Google and announced at its developer conference in May 2016. Unlike Google Now, Google Assistant can engage in two-way conversations.
Mycroft is the world’s first open source assistant. Mycroft runs anywhere – on a desktop computer, inside an automobile, or on a Raspberry Pi. This is open
Fast, easy and fun to stay on top of work & life with your personal assistant Cortana! Bring your smart digital assistant to your phone to help keep track of the important stuff wherever you are, across your devices.