"We aren’t just building amazing software, we are revolutionizing team communication. Collaborate with coworkers using screen recordings, GIFs, high-def videos, and annotated screenshots, all with one nifty link copied straight to your clipboard. Customize every piece of work with your own branding. Last but not least, privately secure your content like a mob boss."
Mumble - Mumble is an open source, low-latency, high quality voice chat software primarily intended for use...
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Discord - Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
Snagit - Screen Capture Software for Windows and Mac
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.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.