Twilio - Brings voice and messaging to your web and mobile applications.
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Plivo - Plivo simplifies your customer engagement.
Snagit - Screen Capture Software for Windows and Mac
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...