Aug 24, 2018  Apple has run the death bell on 32-bit macOS apps and, if you’re running a recent macOS version on your Mac (which you should so you can get security updates) you likely see this alert from time-to-time: If you’re like me, you click through that and keep working but later ponder just how many of. Continue reading →.

• Find 32 Bit Apps Mac

System Information User Guide

Use the sidebar of the Storage pane to sort through items by category, see how much space is used, and quickly find documents, apps, books, movies, backups, and other files. Then delete what you no longer need.

Note: The categories you see vary, depending on the apps and files on your Mac.

1. Choose Apple menu > About This Mac, click Storage, then click Manage.

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2. Click a category in the sidebar:

   • Applications, Music, and Books: These categories list files individually. To delete an item, move the pointer over the file name, then click the Delete button .

     Note: If you delete an item that you got from the iTunes Store, the App Store, or Apple Books using your Apple ID, the item is still in iCloud, and you can download it again.

   • Documents: See all the documents on your Mac. You can quickly view large files or downloads by clicking the corresponding button, and sort files by clicking Name, Kind, Last Accessed, or Size near the top of the window. You can also click File Browser to view the contents and amount of storage used by various folders in your file system.

     Note: Some folders and files that are already represented by categories in the sidebar—other than Documents—are dimmed.

     To delete a file, move the pointer over the file, then click the Delete button ; click the magnifying glass to view the file in the Finder.

   • iCloud Drive and Mail: These categories provide general recommendations for optimizing storage. To accept the recommendation, click the button.

   • iOS files: See iOS backup and firmware files listed individually. To delete an item, move the pointer over the file, then click the Delete button .

   • Trash: In this category, click Empty Trash to erase all the items in the Trash. Move the pointer over a file, then click the Delete button to delete an individual file.

Apple began transitioning to 64-bit hardware and software technology for Mac over a decade ago, and all modern Macs now include powerful 64-bit processors that can run advanced 64-bit apps. These apps can access dramatically more memory, enable faster system performance, and take advantage of technologies that define today's Mac experience, such as Metal graphics acceleration.

Apple has been working with developers to transition their apps, and in 2018 Apple informed them that macOS Mojave would be the last version of macOS to run 32-bit apps.

Find 32 Bit Apps Mac

Apple's transition to 64-bit technology is now complete. Starting with macOS Catalina, 32-bit apps are no longer compatible with macOS. If you have a 32-bit app, please check with the app developer for a 64-bit version.

Opening 32-bit apps

When you attempt to open a 32-bit app, you will see an alert that the app needs to be updated to work with this version of macOS, or that the app is not optimized for your Mac and needs to be updated.

macOS Catalina

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macOS Mojave and macOS High Sierra

If you haven't upgraded to macOS Catalina, you can still open and use the app, but you should check with the app developer for a 64-bit version that also works with the latest macOS.

How to find 32-bit apps on your Mac

System Information can find 32-bit apps that are installed on your Mac:

1. Choose Apple menu  > About This Mac, then click the System Report button.
2. Select Legacy Software in the sidebar. All legacy software is 32-bit.
3. If you don't see Legacy Software in the sidebar, select Applications in the sidebar, then check the list of apps on the right. The column labeled ”64-Bit (Intel)” shows ”No” for apps that are 32-bit.

When upgrading to macOS Catalina, the installer shows a list of recently used apps that are 32-bit. You can review this list before choosing whether to cancel or continue the installation:

macOS Catalina also shows a prohibitory symbol over the icon of each 32-bit app in the Finder, letting you know that the app will not open.

How to contact the app developer

The developer (or vendor) is the person or company that made the app. The easiest way to find contact information for an app's developer is to search the web for their name or the name of their app. Learn more about contacting third-party vendors.

To find the name of the developer:

1. Select the app in the Finder.
2. Choose File > Get Info from the menu bar.
3. Look for copyright information in the Info window. For example, Apple is the developer of this app: