YakYak

YakYak is similar to Google Hangouts, with a few exceptions. It's a desktop application, so you won't need Chrome to run it. It has different color schemes, including a dark mode. There's also an option for desktop notifications. Other than that, it has all the basics of Google Hangouts, without the need for a browser.

Features:

• Since it's a desktop application, you won't need the Chrome browser to run it, like you might for Google Hangouts. If your computer doesn't support Chrome or you don't particularly like the browser, this is a plus. 
• The different color schemes add a little fun to the application. You can choose a dark mode or you can change the colors of the skin, as well. 
• YakYak has customer support in 21 languages and also has the option to translate. So, if you're not a native speaker of English, you can download the program in your own native language.
• It has many options for communication. There's the basic chat messaging, where you can send and receive messages. It also has the option for a video/audio call feature, if you want to see the person you're speaking to.

YakYak is a really great option if you're not able to run Google Hangouts on your computer, if your operating system won't support Chrome or you just don't like the browser, or if you're looking for something like Google Hangouts, but with extra features, for you to play around with.

YakYak is good for people who can't run Chrome on their operating systems, or choose not to.