Sure, the Google search box in Android lets you dictate regular text messages, but what if your conversations live in a non-standard chat app? You can relax as of today. Google now supports using your voice to send messages in English through a handful of third-party services, including WhatsApp, Viber, NextPlus, Telegram and WeChat. All you have to do is name the service when you're issuing the command -- "send a WhatsApp message to Bob" will make sure that your friend gets your missive where he's expecting it. More apps and languages are in the cards, so don't despair if your favorite mode of communication isn't compatible right away.

http://www.engadget.com/2015/07/28/a...essaging-apps/