Anima App - Design, get feedback, convert to code, publish, iterate.
Sketchode - Sketchode, a Sketch software application, provides graphical representation of any project.
Sketch Repo - Collection of resources for anyone who uses Sketch
Sketch Measure - Spec tool for developers and teammates
Auto-Layout for Sketch - Responsive design for Sketch
Zeplin - Collaboration app for UI designers & frontend developers