Project Fi Users, No, You Don’t Have to Use Hangouts
If you are a new Project Fi users, chances are you are a bit confused. That confusion surrounds SMS and which app you can use for getting your text messages on your Nexus phone using Fi. On the surface, it looks like you are required to use Google Hangouts, the voice, video and yes, text messaging integrated app. But that not necessarily true and in fact, even Google suggests that you use Google Messenger, the default SMS app on Nexus devices, for texting.
So what gives? What’s the truth and what is the plus or minus of using Google Hangouts or Google Messenger? Essentially it comes down to where you want messages to appear and on which devices and how you plan to communicate to friends and family.