How to Find All 32-Bit Apps on a Mac

How to Find All 32-Bit Apps on a Mac

MacOS High Sierra is the last macOS release to support 32-bit apps without compromise (presumably meaning without performance degradation, and with maximum compatibility), and are now notifying users if 32-bit apps are being run. This might suggest that 32-bit Mac apps will run through a compatibility mode like Rosetta or Classic in the near future, and eventually, it seems likely that Apple will drop support for 32-bit apps on the Mac completely in a some future system software release, favoring 64-bit apps. But there are a fair amount of 32-bit apps which are widely used on many Macs, despite Mac OS itself being 64-bit since Snow Leopard. If youre not sure what apps are 32-bit or 64-bit, then youll be glad to know that Mac OS has a handy tool available within System Information to quickly show you all the apps which are 64-bit or not. The simplest way to see all 32-bit applications (and 64-bit apps) on a Mac is to use System Information In the screenshot example here, you can see that this particular Mac has quite a few 32-bit apps installed and in regular use, including Steam, SuperDuper, TextWrangler, Warcraft 3, and WriteRoom. Of course this is just an example, and there are many other apps used by Mac users which are 32-bit. If you find 32-bit apps, and you plan on consistently installing all future Mac OS software versions and updates, then youll want to get those apps updated to 64-bit, contact the developers to ask about 64-bit support, or find replacements for the apps in question. Its likely that 32-bit apps will still run down the road in macOS (for a while anyway), but Apple suggests there will be some sort of compromise associated with doing so. Currently, this wont impact you at all. But, this may impact which apps work on your Mac in the future, under a future Mac OS system software version. If you dont plan on ever running any Mac OS beyond macOS High Sierra (10.13.4+) then it wont impact you ever. For example if you avoid a theoretical macOS 10.14, 10.15, or 10.16 release, then it likely wont matter at all. But if you install a future macOS system software version with some sort of abstraction layer to run 32-bit apps, the performance may be less than optimal. And further out, if a MacOS release loses all 32-bit app compatibility, those apps may not work at all, without 64-bit updates from the developer anyway. There is some precedent for this, both on the Mac and in the iOS world. For example, fairly recently Apple , which led some apps to stop working on some iPhone and iPad devices. And in the past, Apple has taken similar measures with Rosetta for PPC apps on Intel chips, and when running Classic apps in the early versions of Mac OS X. * If you dont see System Information in the Apple drop down menu, then you probably did not hold down the OPTION key while reviewing the Apple menu options. Hold Option and try again. Or, try an alternative method of launching System Information app. You can also access System Information from the /Applications/Utilities/ folder, or by launching it via Spotlight. Yes. But if youre a keen observer of computing history (and who isnt! *nerd snort*) then you may recall that and all releases since then have too. In other words, if your Mac is vaguely new, its already 64-bit, since Macs havent been 32-bit since 2006 when the first series of Intel-based Macs debuted (but you can always architecture or if you arent sure about a particular Mac). Essentially this means that after about a decade of supporting the older 32-bit apps and architecture, Apple looks like they want to move entirely to 64-bit soon. So just keep an eye on what apps youre using that may still be 32-bit, and update the apps that you can. Or if youre highly reliant on an older 32-bit app that wont be updated, consider or any other future major system software release where full support may no longer exist, at least until you have your app situation sorted out.