Sign in to or out of Hangouts
When you sign in to or out of Hangouts from any desktop application (Gmail, Google+, the Chrome extension), you’ll be signed in to or out of Hangouts across all desktop applications.
When you sign in to or out of Hangouts on your computer, it won't affect your account on the Hangouts mobile app. You must sign in to or out of each Hangouts mobile app separately. For example, signing out of Hangouts in Gmail, will also sign you out of Hangouts in Google+ and the Chrome extension. But you won't sign out of the Hangouts app on your Android, iPhone, or iPad.
Sign in to Hangouts
- Open the Hangouts app.
- Enter your Google account information.
- Click Sign in.
Sign out of Hangouts
- Click menu at the top of your Hangouts list.
- Select Sign out of Hangouts.
Sign in to multiple accounts on Hangouts at the same time
You can't sign in to multiple accounts from one Hangouts application on your computer at the same time. But you can log in to multiple accounts by using Chrome profiles to have multiple instances of the Hangouts app open at the same time.
Once you set up Chrome profiles, install the Hangouts extension on each profile. Then you can easily see your messages pop up on your desktop instead of showing only in your browser window.
But if you don't want to install the extension, you can switch between Hangouts accounts by switching between the Chrome profiles that are on separate browser windows.