How to find 32-bit apps on Mac

With macOS Mojave, Apple brought the last Mac operating system onto the market that can still support 32-bit apps. With macOS 10.15, you should have replaced every 32 bit app or updated it to 64 bit - otherwise you will get a warning that the software is not compatible with the system. So if you want to be secure for the future with the upgrade from Sierra or High Sierra to Mojave, you should perhaps check beforehand which of the programs you have installed and used are designed for a 64-bit system - and for which it may be . there is a new version. How you find 32-bit apps on the Mac, I have summarized for you in this guide.

As of macOS 10.15, compatibility is over! But how do you find 32-bit apps on the Mac? I'll show you in this guide;)

As of macOS 10.15, compatibility is over! But how do you find 32-bit apps on the Mac? I'll show you in this guide;)

This is how you can find 32-bit apps on the Mac

So if you want to prepare for macOS 10.14 Mojave, which prefers 64-bit apps, but can also work with 32-bit, as well as macOS 10.15, then here are the appropriate instructions. So you can see which important and which unnecessary apps on the Mac are still equipped with a 32-bit architecture. Just follow these simple step-by-step instructions:

  1. In the menu bar on the left on the -Symbol click (Mac menu)
  2. Hold down the Alt or Option key so that the first menu item changes from "About This Mac" to "System Information ..."
  3. At System information ... click (and release Alt)
  4. Scroll down in the left column of the window that opens and the drop-down menu Software open (if not already open)
  5. In the software list the point Program click (the loading of the content on the right side may take a moment - depending on how many apps you have on your Mac)
  6. In the title line of the table at the back 64-bit (Intel) click and scroll down
  7. The apps with 32-bit architecture are now collected at the bottom (the entry is "No")
  8. 64-bit apps are displayed with a "Yes"
Do you want to check before or after the macOS Mojave upgrade which Mac apps run on 32-bit instead of 64-bit? You can find the overview here! So you know which programs have to be updated or replaced in 2019 in order to work with macOS 10.15;)

Do you want to check before or after the macOS Mojave upgrade which Mac apps run on 32-bit instead of 64-bit? You can find the overview here! So you know which programs have to be updated or replaced in 2019 in order to work with macOS 10.15;)

64 bit support at Apple since 2007

With OS X Leopard, Apple introduced 64-bit support on the Mac, iMac and MacBook. Up to macOS 10.13 High Sierra in 2017 and macOS 10.14 Mojave in 2018, the two different architectures of apps can be used side by side. With macOS 10.15 (expected in 2019), Apple will soon switch to the most modern type of app programming on Mac computers. Under Mojave there may already be warning messages for 32 software. So if you have essential apps on your computer that are still 32 bit weak, you will find them nicely listed with the instructions above. Do you still have questions, answers, tips and tricks on the subject? Then leave a comment! :) 

Upgrade tips in the guide: macOS Mojave problems and approaches

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2 comments

  1. Lothar circle says:

    Hi Jens,

    iphoto (32-bit app) is no longer supported by macOS Catalina.
    How do I update iPhoto to the Photos app?
    What about the other 32 apps that are still there and cannot be opened anymore?

    LG
    Lothar circle

    • sir appleot says:

      Hello Lothar! The Photos app actually recognizes an old iPhoto library and wants to convert it.
      Because of the other 32-bit apps: There is no solution. You can check with the manufacturer of the apps to see whether they may have released a current version with 64 bit, but if this is not the case, you have to do without the apps or let them run in a second volume with Mojave. Click here you will find instructions on how to do this.

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