Steam Chat - Steam Chat is a chatting app for Steam users that enables them to chat through their cell phones and get updated with what is happening.

Mumble - Mumble is an open source, low-latency, high quality voice chat software primarily intended for use...

GameTree - Discover the friends and games you will love most.

Discord - Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.

Bigfoot - Bigfoot is a gaming assistant for mobile gamers that provides them with various useful tools to enhance their gaming experience.

RaidCall - Free & Light. Setting up is fast and easy; with no need to rent or set up servers. Low CPU usage and minimum memory footprint allows for smooth, uninterrupted communication. im. Group Communication.