Possibly the best cross-platform voice chat, text chat, and group calls application out there
A well-designed desktop client for WhatsApp but lacking many features
The desktop version of the privacy-enriched messenger app
An open-source instant messenger focusing on privacy and with many options to customize
One of the world's leaders in video conferencing for businesses and teachers around the world
The premier meeting application for business and casual teams
An app that lets you message and call people for free
The perfect application to talk and chat with others over the Internet
An advanced email client for professional users who manage many email accounts at once
