Apple has begun the process of phasing out 32-bit applications on Macs, which is why many users who upgraded to macOS 10.13.4 or later will have come across the following warning message the first time they launch certain older apps.

32 bit app warning message mac
This is the first of many warnings Apple plans to provide as it works to put an end to 32-bit apps on the Mac, as it did on iOS devices with the release of iOS 11. Apple has confirmed that macOS 10.14 Mojave, set for public release in the fall, will be the last version of macOS to allow 32-bit apps to run, but it will include more "aggressive" warnings about their use before they are phased out entirely.

In this article, we'll show how you can quickly find out which apps installed on your Mac are 64-bit and which are still living in the 32-bit age. If you don't rely on apps that fall in the latter camp, you can safely uninstall them. However, if you're a frequent user of one of these apps, try contacting the developer to find out if a 64-bit version is in the works. If one isn't planned, try and find an alternative app with similar functionality before the time comes when it refuses to launch.

How to Identify 32-Bit Apps on Your Mac

  1. Click the Apple symbol () in the menu bar on your Mac's desktop.
    check for 32 bit mac apps4

  2. Click About This Mac.

  3. In the macOS Overview pane that appears, click the System Report... button.
    check for 32 bit mac apps1

  4. In the information window that appears, scroll down the left column and click Applications under the Software list, then wait a moment while your Mac generates a list of installed apps.

  5. When the list of apps appears, click the 64-Bit (Intel) label to bring any 32-bit apps to the top of the column.

  6. Drag down the divider using the center dot to expand the viewable list of apps.
    check for 32 bit mac apps2

Anything in the list that has a "Yes" under the 64-Bit column is good to go, but there are several in our example listed as "No", which means they're 32-Bit and will stop working in a future version of macOS.

check for 32 bit mac apps3
Some popular apps in the above list, like Steam and Google Music Manager, will likely have 64-bit versions available in good time, but other items – old Brother printer drivers and utilities, for example – may not survive a forthcoming upgrade, and it could be a while before developers issue 64-bit versions of said software (assuming it's even still actively supported), so as our example shows, it pays to plan ahead.

Top Rated Comments

Eidorian Avatar
38 months ago
If your app isn't 64-bit by now, it means the developer abandoned it years ago.

It'll be nice to be 64-bit only. Means slimming down application packages for some.
Some of us still use those abandoned programs.
Score: 9 Votes (Like | Disagree)
OldSchoolMacGuy Avatar
38 months ago
If your app isn't 64-bit by now, it means the developer abandoned it years ago.

It'll be nice to be 64-bit only. Means slimming down application packages for some.
Score: 6 Votes (Like | Disagree)
Plutonius Avatar
38 months ago
If your app isn't 64-bit by now, it means the developer abandoned it years ago.
Please don't generalize. I have MacOS applications that are updated on regular basis that are not 64 bit. The issue is that some of the GUI libraries (third party) are not 64 bit and will never be updated. This means a lot of work for the application developer and some will not be willing to make their current applications 64 bit (it's not worth it for them).
Score: 6 Votes (Like | Disagree)
bgpaglia Avatar
38 months ago
Soooo... I think that next MacOS version won't have the DVD player anymore o_O



Attachment Image
Score: 3 Votes (Like | Disagree)
longofest Avatar
38 months ago
If your app isn't 64-bit by now, it means the developer abandoned it years ago.
Said by someone who is clearly not a developer.
Score: 3 Votes (Like | Disagree)
OldSchoolMacGuy Avatar
38 months ago
Said by someone who is clearly not a developer.
I've been a developer since the OS 7 days and helped to create some of the best known commercial utilities for Mac. Thanks though.

Are you actually saying people are actively developing 32-bit products for Mac to this day?
Score: 2 Votes (Like | Disagree)

Top Stories

tile sticker e1570533758981

Tile CEO: 'We Welcome Competition From Apple, But We Think It Needs to Be Fair'

Tuesday May 4, 2021 9:51 am PDT by
Just after Apple announced its AirTags, Tile CEO CJ Prober relayed his concerns about competing with Apple in the tracking space, and said that Tile would ask Congress to investigate Apple's business practices specific to Find My and item trackers. Prober this week did an interview with Bloomberg, where he further expanded on Tile's complaints about Apple and why he feels that Tile is...
signal instagram ads3

Signal Shares the Instagram Ads Facebook Doesn't Want You to See

Wednesday May 5, 2021 1:29 am PDT by
Encrypted messaging app Signal has had a series of Instagram ads blocked from the social media platform, after it attempted to show users how much data the Facebook-owned company collects about them and how it's used to push targeted ads. In a blog post, Signal described how it generated the ads to show users why they were seeing them, simply by declaring upfront the information that the...
tracking disabled ios 14 5

Analytics Suggest 96% of Users Leave App Tracking Disabled in iOS 14.5

Friday May 7, 2021 1:51 am PDT by
An early look at an ongoing analysis of Apple's App Tracking Transparency suggests that the vast majority of iPhone users are leaving app tracking disabled since the feature went live on April 26 with the release of iOS 14.5. According to the latest data from analytics firm Flurry, just 4% of iPhone users in the U.S. have actively chosen to opt into app tracking after updating their device...
fortnite apple logo 2

Epic CEO Tim Sweeney Admits App Store's 30% Cut Is Similar to Consoles, Would Have Accepted Special Deal With Apple

Tuesday May 4, 2021 1:54 pm PDT by
Apple's legal battle with Epic Games is continuing on, and during the second day of the trial, Epic Games' CEO Tim Sweeney continued his testimony against Apple. Sweeney was grilled by Apple's lawyers, and made several points seemingly favorable to Apple. In addition to mentioning how he prefers Apple's iPhone and values Apple's privacy policies that he's aiming to dismantle, Sweeney...
snapchat dark mode

Snapchat Rolls Out Dark Mode on iOS

Wednesday May 5, 2021 1:17 am PDT by
Nearly two years following the release of iOS and iPadOS 13, which included native, built-in, and systemwide dark mode, Snapchat, one of the world's most prominent social media networks, has finally rolled out a dark mode theme for iOS users. Snapchat began testing a dark mode theme of its app design late last year with a small group of iOS users. Now, Snapchat says that as of this week, it...
netflix sign up

Apple Discussed 'Punitive Measures' Against Netflix for Dropping In-App Purchases

Wednesday May 5, 2021 11:03 am PDT by
As the Epic Games v. Apple trial progresses into its third day, Apple's internal documents and communications with various companies are continuing to surface, giving us some insight into the dealings that Apple has had around the App Store. Back in December 2018, Netflix stopped offering in-app subscription options for new or resubscribing members and instead began requiring them to sign up ...
iphone 12 preorder purple

Apple Begins Transition to Randomized Serial Numbers With Purple iPhone 12

Wednesday May 5, 2021 9:17 am PDT by
MacRumors previously reported about Apple's plan to switch to randomized serial numbers for future products starting in early 2021, and this transition has now started with the new purple iPhone 12 model in multiple countries. With assistance from Aaron Zollo, host of the YouTube channel ZolloTech, we can confirm that the purple iPhone 12 released last month has a new 10-character serial...
airtag 1

AirTag Anti-Stalking Measures 'Just Aren't Sufficient' Says Washington Post Report

Wednesday May 5, 2021 6:03 pm PDT by
The safeguards that Apple built into AirTags to prevent them from being used to track someone "just aren't sufficient," The Washington Post's Geoffrey Fowler said today in a report investigating how AirTags can be used for covert stalking. Fowler planted an AirTag on himself and teamed up with a colleague to be pretend stalked, and he came to the conclusion that the AirTags are a "new means...
iphone 13 pro max dummy notch

iPhone 13 Pro Max Dummy Model Depicts Smaller Notch

Tuesday May 4, 2021 1:08 pm PDT by
Apple's iPhone 13 models are expected to feature a slimmed down notch, marking the first major change to the TrueDepth camera system since it was introduced in the 2017 iPhone X. We're still months away from the launch of the iPhone 13, but Lewis Hilsenteger of Unbox Therapy managed to get an iPhone 13 Pro Max dummy model that represents what we can expect from the new 2021 device. Dummy...
iPad Pro July Shipping

12.9-Inch iPad Pro Now Delivers as Late as Mid-July

Wednesday May 5, 2021 7:10 am PDT by
While the new 12.9-inch iPad Pro is set to launch in the second half of May, orders placed today are estimated for delivery as late as mid-July on Apple's online store in the United States — some two months later. The new 11-inch iPad Pro is faring better so far, with some configurations available for delivery in the last week of May. The new 12.9-inch iPad Pro features a Liquid Retina XDR ...