Recently, I was needed a macOS Catalina installer to install it on an external SSD drive. In this article, I’ll show you how to download the “Install macOS Catalina.app” file from the Mac App Store. Let’s begin.

Preamble

If you are think about where you can download macOS, it is very easy as it is a regular application, like game, photo editor or notes, that we use every day. All apps for macOS we can find and download in App Store, including macOS Catalina itself. We can download macOS Catalina for free.

‎macOS Catalina gives you more of everything you love about Mac. Experience three all-new media apps: Apple Music, Apple TV and Apple Podcasts. Locate a missing Mac with the new Find My app. And now coming to Mac, your favourite iPad apps. You can even extend your desktop using iPad as a second displ. MacOS Catalina now lets you, track your app usage on all your Mac’s as Screen Time, Where you can customize Downtime, App daily time limits, and also set content and privacy restrictions. Screen Time stores all Downtime and App limits across all your iCloud devices and Helping you to Monitor and manage each device with better parental controls.

Let’s begin

Download a macOS Catalina from App Store is a really simple process. For this, we need to follow few simple steps. Now let’s get started :)

Go to Launchpad → App Store.

In the search bar on the left-hand side, enter macOS Catalina and press the Enter key.

Click on the VIEW button.

Then click the GET button or iCloud download icon.

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Click on the Download button.

Note! It takes time to download the macOS Catalina installer app, so make sure that you have a reliable Internet connection. If you’re using a Mac notebook computer, plug it into AC power.

macOS Catalina download directly to our Applications folder as an app named Install macOS Catalina. If the installer app opens after downloading, quit it without continuing installation.

Note! If you have problems downloading the complete macOS Catalina installer app, then read this article, it should help.

Conclusion

That’s it, you’re done! Now you have the “macOS Catalina” installer app downloaded. So simple isn’t it?

I hope this article helped you to learn how to download a macOS Catalina installer app. If this article has helped you then please leave a comment

Thanks for reading!

Milena is a web designer and illustrator. She spends her time translating our articles and wrote her own articles. Her personal website can be found at milenakiseleva.com.

macOS Catalina was the 16th major release for Apple's operating system. It included tons of new features, covering everything from iPad compatibility (Catalyst makes it easy to port iPad apps to Mac) to security (Gatekeeper will require Apple-notarized Developer ID for apps) to entertainment (new apps for Podcasts, TV, and Music), besides the usual improvements to all the native software.

macOS Catalina is no longer new after being succeeded by macOS Big Sur in 2020. Still, it has a lot to offer, especially if your Mac runs Mojave or even older macOS.

Is my Mac Compatible With macOS Catalina?

Regardless of whether you want to install the beta or wait for the official public release, one question will inevitably pop up in your head — is my Mac compatible with macOS Catalina? Good question! Let’s look at the macOS Catalina compatibility chart to find out.

List of macOS Catalina supported Macs

Overall, due to the numerous efficiency improvements under the hood, macOS Catalina supported Macs are nearly identical to those of macOS Mojave:

• MacBook (2015 or later)
• MacBook Air (2012 or later)
• MacBook Pro (2012 or later)
• iMac (2012 or later)
• iMac Pro (2017 or later)
• Mac Pro (2013 or later)
• Mac mini (2012 or later)

The only difference you might find is the new macOS Catalina requirements not covering Mac Pros ranging from 2010 to 2012. So unless you have that specific Mac Pro model you should be able to try the new operating system.

However, in case your Mac is on the older side, barely managing to load the macOS won’t result in a pleasant experience. For example, Apple specifies that running 4K as well as Dolby Atmos content is only possible with Macs introduced in 2018 or later that boast 4K screens.

But don’t hurry to the Apple Store just yet. If watching videos in 4K is not an absolute necessity, you could simply optimize the Mac you have for faster performance and run macOS Catalina without a problem.

What are macOS Catalina storage requirements?

To run properly, macOS Catalina needs a considerable amount of disk space. It’s generally recommended to keep at least 15% of your main drive free. But remember, you’ll also need space for future macOS updates and all the new software that goes with Catalina. So you should think of freeing up storage way beforehand, while you’re still on Mojave or other older OS.

The general space goals to aim for here:

• 15–20 GB of free storage.
• 4 GB of RAM.

Upgrade smoothly: remove outdated system files

The best way to rise above the basic macOS Catalina requirements is to do a thorough scan of your Mac and purge all the useless data that you’ve accumulated over the years. Quite a hefty task if you choose to do it manually: your Mac has a ton of system files and invisible folders that require the use of Terminal to get to. Luckily, there's a software designed to take care of it all automatically.

CleanMyMac X is the easiest and the most thorough way to bring your Mac back to its pristine original state. In fact, the app is so helpful and intuitive that it was recognized as the “#1 Product of the Month” by Product Hunt.

Here are the kind of files you should try to get rid of: Mac os 10.8 dmg 10.13.

• User and system cache files.
• System and user log files.
• Language files.
• Broken login items.

To do so with CleanMyMac X, simply:

1. Download the free version of the app.
2. In the sidebar, navigate to System Junk and hit Scan.
3. Review Details and then Clean anything you don’t need.

Even though I’ve been using CleanMyMac X on a regular basis, the System Junk scan has revealed over 11 GB of files I no longer need. Imagine how much dead weight your Mac can carry!

Maximize your storage space

Once you clean your Mac from all the system and user-generated junk, you’ll notice improvements in responsiveness and speed right away. But it’s not only outdated files that slow your Mac down.

To hit all macOS Catalina system requirements, you need to have as much of your hard drive free as possible. This might include, for example, legitimate but long-forgotten documents you haven’t opened in years.

Macos Catalina App Compatibility New Pb Codes

The good news is you can see what’s taking up your hard drive capacity with a new feature in CleanMyMac X called Space Lens, which creates an interactive visual map of all your files and folders:

1. Open up CleanMyMac X (or download for free here).
2. Go to Space Lens under the Files tab.
3. Hit Scan and wait for the process to finish.
4. Explore all the interactive bubbles and remove the folders you no longer need.

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With no extra system files or unused heavy folders dragging you down, your older Mac will become brand new again, agile enough to take on the macOS Catalina. Best of all, just one app — CleanMyMac X — can do it all for you.

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