How to Install Software on a Mac

Installing software on a Mac is actually easier than on Windows or Linux, though it can be a little confusing if you’re new to macOS. The process is simple and usually involves just three steps:

  • Step 1: Acquiring
  • Step 2: Unpacking
  • Step 3: Installing

Step 1: Acquiring Mac Software

First, acquire the software either from a CD, DVD, or the internet. Software downloaded from the internet is often compressed. Common compressed formats include .zip, .sit, .sitx, and .dmg files. If installing from a CD or DVD, you can skip the next step, as these files are usually already uncompressed.

Step 2: Unpacking Mac Software

Simply double-click the .dmg, .sit, .sitx, or .zip file. If it’s a disk image (.dmg), macOS will mount it like a virtual drive.

Step 3: Installing Mac Software

There are two ways to install software on a Mac:

A: Using an Installer Package

If the software comes with its own installer, it will look something like this:

Mac software with an installer

Double-click the package to open the installer. You’ll be guided through an automated installation process, like this:

Install Software on a Mac

Follow the on-screen instructions, and the application will install automatically.

B: Manual Installation (Drag and Drop)

Some applications don’t include an installer. To install these, simply drag the app icon into your Applications folder:

Drag and drop the Mac app onto the applications folder

Cleaning Up After Installation

Once the software is installed:

  • Eject any mounted disk images: Control + Click the mounted image → Eject.
  • Move the original installer file to the Trash: Control + Click the file → Move to Trash.

That’s it! Your Mac software is now installed and ready to use.