Cortana app isn't exactly a talker for Apple, Android devices

Video game fans are familiar with the name Cortana. Now, Microsoft is hoping iOS and Android phone owners in search of a personal assistant app will get to know her, too. Microsoft's voice-enabled assistant Cortana -- named after the artificial intelligence featured in the Xbox franchise Halo -- launched for Apple and Android smartphones, giving users a way to quickly look up information or set reminders with simple voice commands. At times, Cortana is useful. But it appears clear it works best on its native home on a Windows device.