Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
WhatsApp Desktop - WhatsApp, now on your desktop
Face to Face - Video meetups for online communities (PH room password meow)
Wafer Messenger - Endless Creativity, Limitless Reach.
Skype for Slack - Move your slack discussions to a group skype call