Cortana From windows 10 To Android

What is Cortana Any way:

Cortana is an intelligent personal assistant created by Microsoft for WindowsPhone 8.1 and Windows 10 (where it now supersedes Bing Mobile), Microsoft Band, Windows  and coming to iOSAndroid, and the Xbox One.
Cortana was demonstrated for the first time at the Microsoft BUILD Developer Conference (April 2–4, 2014) in San Francisco. It has been launched as a key ingredient of Microsoft's planned "makeover" of the future operating systems for Windows Phone and Windows. It is named after Cortana, a synthetic intelligence character in Microsoft's Halo video game franchise originating inBungie folklore, with Jen Taylor, the character's voice actress, returning to voice the personal assistant's US-specific version.
As of 2015, Cortana is available to all users of Windows Phone 8.1 and Windows 10 (Desktop) in the United States (US English), China (Mandarin Chinese), and the United Kingdom (UK English). Users in certain countries can also choose to opt-in to the alpha for the English, French, German, Italian, and Spanish versions of Cortana on Windows Phone as of August 2014.In most of these regions, Cortana is also available via WindowsInsider to both PC and mobile users of Windows 10.

Cortana better than google Now ??!!
Cortana is still a fledgling assistant and even more so on Android. The beta app for Cortana has been available in the Play Store since August, but yesterday evening Microsoft updated the app in order to support voice activation. Although voice activation on Cortana works the same way as it does with Google Now, meaning severely limited, Microsoft is working on expanding the app and what it can do and implement those on mobile platforms like iOS and Android.
Those in the game for the beta version of the app can easily use Hey Cortanainstead of OK Google to bring up the virtual assistant and ask it to do tasks for you. However, this can only be done if your device’s screen is on and unlocked or if the Cortana app is already running in the background. While there are Android phones out there that have always-listening modes available, Cortana can’t take advantage of them for now.
The updated Cortana for Android app doesn’t just add voice activation support, but also adds an array of tasks that Cortana can now complete for the user. Appointments and reminders can be set, calls can be placed and information about weather and stocks can be brought up, much like what Google Now is offering. The same features are available in the desktop and Edge versions of Cortana, so even if the Android preview app is too much of a stretch for you, testing out Cortana is not impossible on other platforms and devices.
Although Cortana for Android is still just a beta version of the app, Microsoft will most likely release the full and official version of the personal assistant by the end of the year. Windows 10 is rolling out to Lumia devices in December, and that’s when Cortana should see its Android version getting a finalized build, too. Until then, the beta will have to do.