Review of Sketch
Pros: Great user interface, easy to use vector editor, awesome export capabilities.
Cons: Only available for macOS. Space bar scrolling sometimes is laggy.
Buy? Yes, I strongly recommend it.
Sketch makes editing vector assets a pleasant experience. Files are structured around exportable art-boards making Sketch the perfect tool for managing assets for iOS and Android projects.
Objects can be styled using shared styles.
I paid $99sketchapp.com
What do you think about Sketch?