Client for Hangouts is the most convenient app for communication! It gives you the ability to have a one-on-one conversation and correspond with your friends in group chats. You can send text messages, use a variety of emoticons, share photos. Client for Hangouts allows to sync chats you have on service and you can communicate there and edit them via app.
See screen shots of the app below:
Communicate easy with Client for Hangouts! UWP App