Right off the bat, Hangouts will be available for Android, iOS and web platforms. For the first time, Google has a single customer that will allow users to interact with their friends regardless of the platform they use. In addition, the new app allows users to send photos and emoji, or to start a video chat with up to ten contacts at once.
Another benefit is the ability to meet friends by phone number. When you use Hangouts for the first time, the service asks for the user's phone number, which allows friends to find you through them. WhatsApp to take care of yourself!
Hangouts is available on the Google Play, App Store, and Chrome Web Store.