Want to know how many applications are installed on your Mac? Believe me, they are always much more than it seems at first glance. Usually, only a small part is installed by the user, the rest are bundled with the system or install with various software packages.
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The most Obvious Way, but not the Best
Go to the Applications folder in the Finder. You can do this by using the left pane in any window, using the key combination Command + Shift + A.

Also you can using the menu items Go -> Applications. In the window that opens, it is best to switch to the list mode (using the buttons in the upper left part of the window) and open all folders.

The list of applications with the date of their installation and size in front of you. However, this list is not complete, it has only the main applications available to the simple user.

We List through System Information
- Hold down the Option (Alt) button and click on Apple icon in the system menu;
- There select About this Mac;

- In the left part of the window in the list, find the System Report item and in it click on Applications. The system will display a complete list of installed applications;

- By clicking on them, you can also get detailed information about each of them.
Read more: How to Force Quit Applications on a Mac?
We Display the List of Applications through the Terminal
Get a complete list of applications can also be through the “Terminal”. To do this, give it a command:
sudo find / -iname *.app
After that, the system will display a complete list of applications available in the system directly in the terminal window. But you can do even better – make sure that the list of all installed applications is uploaded to a file specially created for this. To do this, give the command:
sudo find / -iname *.app > ~/Desktop/MacApp.txt
After that, a file containing a complete list of applications will be created on the desktop. Instead of MacApp, you can write something else – this will get the name of the file created.
Conclusion
With the methods we discussed, you can get up to three different lists of applications. Therefore, it would probably be a good idea to use several methods to create more than one list of applications, to be sure that you know all the applications installed on your Mac.
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