Here's how you can view your Mac's application folder by category in the Finder in OS X.
1. Open a Finder window.
2. Click the gear icon in the Finder window.
3. Go to Arrange By.
4. Select the Application Category option.
All of your applications will appear in separate categories. There will be some, however, that appear in the Other category.
For more, see the original article at the link below.