Git Sketch Plugin - Version control for designers
Mapme - Build smart and beautiful maps within minutes with no coding.
Anima App - Design, get feedback, convert to code, publish, iterate.
Google Maps Go - Designed to run smoothly on devices with limited memory and on unreliable networks
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.