Always stay connected with the new desktop app for Hangouts.
Use Hangouts to keep in touch. Message friends, start free video or voice calls, and hop on a conversation with one person or a group.
Hangouts Chrome app:
Use Hangouts and get notifications as you move from tab to tab in Chrome, or even without a Chrome window open.
Position Hangouts anywhere on your screen, even if you have more than one monitor. Keep conversations in a single window or pop out the important ones.
View and continue your conversations across devices.
Get notifications just once. After you see an alert, it'll be removed on other devices.
Unlike the Chat for Google app, Hangouts doesn't support "invisible status".
Mobile carrier and ISP charges may apply.