Microsoft is building its whole ecosystem around one central concept: generative AI. Different versions of the company's Copilot assistant have rolled out to different apps and services, including Microsoft 365 and Windows 11, but they're all meant to be an omnipresent assistant that can help you get stuff done. Following the release of a standalone web app as an alternative to Bing Chat, Microsoft has now released an independent Copilot app for Android phones and tablets.