Usually, a great Mac app has always an outstanding design. This happens beacuse the Mac platform is highly focused on providing a better user experience than other OSes and a good design is very important to acheive this. But, if you're an app developer, you have to tell users that your app is great in the first place. And the first place is the application's website.
Here I've collected 60 awesome Mac apps websites for your inspiration. If you know more, I'd love to hear about that in the comments.
20 Cool App Website Designs (via OutlawDesignBlog)
13 Beautifully Designed Mac and iPhone App Websites (via WebDesignLedger)
10 Stunning Mac software websites (via Woork)