With this amazing Sketch template, you can realistically portray your application design within a mac application window!
The template is fully scalable, and mimics -- in an incredibly authentic way -- what you would see if your shitty app was real, and you could open it on a mac. Which you can't, because you're just a designer and you work on windows. Get a life.
Download the template of your dreams: https://gumroad.com/l/bXkmI