The title seems an odd choice, since Siri, Google Now (and apparently also Cortana, in Windows 10) can be male or female. The fact that there&#x27;s some app out there that doesn&#x27;t have both male and female voices isn&#x27;t a valid indictment of the larger class of voice-controlled assistants.<p>I&#x27;m sure these app devs they wish they had both male and female voices, but having more than one voice is likely very expensive and time-consuming to add. So they&#x27;re building core functionality, proving market demand, and then at some point (like Apple, Google, and Microsoft), they&#x27;ll add multiple voices.