Anima App - Design, get feedback, convert to code, publish, iterate.
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
Loom - Loom is a screen recording extension for Chrome that gives people the ability to create and share media. Create your own videos using your camera, screen view, and audio. Read more about Loom.
Smartmockups - Create stunning product mockups, easily and online.
Marvel for Sketch - Sync, play and record prototypes in Sketch!
MockMagic - A free, easy-to-use device mockup generator