Anima App - Design, get feedback, convert to code, publish, iterate.
Sketch Mirror - Preview your iOS designs directly on your devices
Sketch Repo - Collection of resources for anyone who uses Sketch
Figma Mirror - Figma Mirror is an application that covers top trending designing or sketching ideas making your teamwork in a single environment and design better products from start to finish.
Auto-Layout for Sketch - Responsive design for Sketch
Flowkit - Sketch library for user flows/content maps/annotations