Split Full Screen Apps On Mac

  1. Split Full Screen Apps On Mac Screen
  2. Split Full Screen Apps On Mac Windows 10
  3. Split Full Screen Apps On Mac Computer

Oct 15, 2018  How to use split screen/Split View on a Mac. To begin you must enter Full Screen View for your first application. To use Split View first you must tap and hold the green button to the top let of the window belonging to the first application you want to access in Split view. Dec 18, 2019  Move the pointer to the top of the screen to reveal the window buttons. Click the full-screen button in either window. That window exits Split View. The other window switches to full-screen view. You can switch to the full-screen window with Mission Control, or use a Multi-Touch gesture such as swiping left or right with four fingers on your. Your Mac computer has a split-screen feature that will automatically resize two windows to let you work side-by-side in two apps. Split screen view works on a MacBook screen or desktop monitor. You can again use it to split your screen into halves, thirds, etc. Just like WinSplit, but it does not have a virtual keypad. Simply drag a window into any of the sections and it will maximize to the full size of that section. You can then maximize any of the sections to full screen.

If we’re being honest, the release of macOS Catalina has not been quite as graceful as Apple may have hoped. This iteration was expected to be the largest in some time considering the introduction of Catalyst applications.


  • 2 How to fix Mail opening in Split Screen
  • 3 Conclusion

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Unfortunately, Catalina has been marred with bugs ever since the developer beta began. This has extended to many applications, including Apple’s own Mail app.

One frustrating issue has been when the Mail app opens in split screen all by itself.

Mail opening in Split Screen on macOS Catalina

This bug may not be exactly new to Catalina, but the Apple Mail app has been wreaking havoc on users for quite some time. Whenever a new version of macOS is released, there are expectations that “major” bugs would be fixed. In the case of Mail opening in Split Screen, that is simply not the case.


Notably, the problem seems to occur if you are working in a fullscreen of another application. An example of this may be browsing Reddit or watching YouTube in Safari in full-screen mode. Then, seemingly out of nowhere, the Mail app decides to just open itself in a split-screen view.

This seemingly occurs due to some bugs found when you have Gmail connected to Mail. Every once in a while, the authentication between Google and Apple Mail will seemingly fail. This causes Mail to open up on its own, causing you to re-authenticate the login.

How to fix Mail opening in Split Screen

Since the bug is related to Gmail, you’ll want to go through and remove the account from Mail before doing anything else. Here is how you remove an account:

  1. Open the Mail app on your Mac
  2. Click Mail in the menu bar
  3. Select Accounts from the drop-down
  4. Highlight the Google account you want removed
  5. Tap the “-” button on the side
  6. Click Ok to confirm

Create an App Password for Gmail

This will remove the Google account from Mail, but you aren’t done just yet. The next step you want to take is to enable two-factor authentication (2FA), and create an “App Password” to use with Mail on macOS Catalina.

  1. Open your browser and navigate to your Google Account Security Settings
  2. Scroll down and select 2-Step Verification
  3. Login and confirm your Google account email and password
  4. Toggle 2-Step Verification On

From here, you are given the option to either use a Google prompt, or through a text message with verification codes. When you use a Google prompt, you must have the Google app installed on your phone, and a notification will arrive confirming that you are logged in.

When completed, go back to the main Security Settings page and select App Passwords. In the box, hit the first drop down and select Mail, and in the second box select Mac. Then tap Generate. This will create a password only to be used with your Gmail account along with the Mail app on your Mac.

Get Gmail back in the Mail app on macOS Catalina

Now that the App Password has been generated, you need to open the Apple Mail app on your Mac. Then follow these steps:

  1. Click Mail in the menu bar
  2. Select Accounts from the drop-down
  3. Click the “+” button at the bottom
  4. Select Other Accounts from the list of options
  5. Select Mail account
  6. Enter your Gmail email account and the App Password that you created earlier
  7. Tap Sign In

Split Full Screen Apps On Mac Screen

After you have signed in, the Mail app will ask whether you want to sync Mail and Notes with this account. Leave Mail checked, and you can either choose to sync Notes or not, then press Done.

Now that the account has been added, it will take some time for the Mail app to sync the data between your Gmail account and the app itself. However, once completed, you should not run into anymore instances of macOS Catalina’s Mail app opening itself.

Split Full Screen Apps On Mac Windows 10



Split Full Screen Apps On Mac Computer

There are far more bugs and quirks when it comes to macOS Catalina than Apple would like to admit. We are sure that these issues will be rectified with future incremental updates. As is the case with many software releases, you can either choose to upgrade and file bug reports, or just hang back until many bugs have been squashed.

If you continue running into issues with macOS Catalina, sound off in the comments below and we’ll be more than happy to assist. As for the Apple Mail app, let us know what you think about the upgrades provided or if you have been using another client such as Spark or AirMail.

Andrew is a freelance writer based on the East Coast of the US.

He has written for a variety of sites over the years, including iMore, Android Central, Phandroid, and a few others. Now, he spends his days working for an HVAC company, while moonlighting as a freelance writer at night.

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