Git Sketch Plugin - Version control for designers
Unsplasher - Fill shapes or symbols in Sketch with images from Unsplash 🖼
Anima App - Design, get feedback, convert to code, publish, iterate.
Sketch Confetti - Generate gorgeous confetti patterns in 1 click.
Marvel for Sketch - Sync, play and record prototypes in Sketch!
Touch GIS - The premier tool for mobile field data collection and visualization. Available for iPhone & iPad.