"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."
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
SuperNormal - Async video updates for remote teams
Snagit - Screen Capture Software for Windows and Mac
Beseda - Async video and audio messaging for remote teams
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Threadit by Google - Short video recordings for async collaboration