The description of 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. Say more with photos, stickers, and emoji.
• Include all your friends with group chats for up to 150 people.
• Say more with status messages, photos, emoji, stickers, and animated GIFs.
• Easily share your current location to any conversation with Maps integration.
• Turn any conversation into a free group video call with up to 10 friends.
• Call any phone number in the world (and all calls to other Hangouts users are free!).
• Connect your Google Voice account for phone number, SMS, and voicemail integration.
• Keep in touch with friends across all your devices.
• Message friends anytime, even if they're offline.
• Manage mobile app remotely with Google Cloud.
Note: Mobile carrier and ISP charges may apply. Calls to Hangouts users are free, but other calls might be charged.
Unfortunately, professional review of the Hangouts app is not yet ready. This app is on the list and will be reviewed in the nearest feature. Meanwhile, you can find more from the official description below.