Adobe XD - Adobe XD is an all-in-one UX/UI solution for designing websites, mobile apps and more.
Maze - Beautiful & actionable analytics for InVision prototypes
Spirous - To make working with spirographs fun again and usable in UI designs, we at Zeta built Spirous which can mathematically generate beautiful vectors with desired shape, color, stroke width and insert them on the Figma artboard.
Marvel + Dropbox Paper - Embed wireframes and interactive prototypes in Dropbox Paper
Abstract - A secure, version-controlled hub for your design files
Ionic Sketch UI Kit - Smart Sketch library for Ionic 3