Sketch Measure - Spec tool for developers and teammates
Design Lobby App - Keep your design assets with you all the time, Design Lobby helps you manage images, icons, fonts and colors. Built for high-performance design teams and freelancers
Zeplin - Collaboration app for UI designers & frontend developers
Lingo - Empower Creation and Ensure Brand Consistency. Build and Share libraries of visual assets with your entire team — all from your desktop.
Marketch - Marketch is a Sketch 3 plug-in for automatically generating html page that can measure and get CSS...
Frontify Workspace - The overall tool for creative & design collaboration: - upload, manage & share assets