"Your life is not limited to one device, and neither is your digital assistant. Cortana is with you on your Windows 10 PC, tablet, and phone-helping you whenever and wherever you need it. But we also know that there's a choice of mobile devices out there, so we want help from our Windows Insiders to make sure she's a great personal assistant on iOS too," said Syed N, Community forum Moderator and Support Engineer at Microsoft.
Cortana on Android gives Google Now a run for its money
However, the Cortana on your iPhone won't respond to a 'Hey Cortana' call like in Android phones. You need to press the home button in your Android phone to get her working.
Microsoft is understood to have developed an initial version of the iOS app and wants people to test it and share their views. The company will also reportedly launch the Cortana app in United States and China only, followed by other countries next year.
Android users to get Cortana within a month