Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
Scrimba - Interactive coding screencasts created in an instant
Mockup Generator - Create attractive product screenshots with just a few clicks
Vidrio - Holographic screencasting app for Mac. Free for COVID-19
shotsnapp - Create beautiful device mockup presentation
GoRails - Ruby on Rails screencasts for Web Developers