Is Not Optimized For Your Mac (2023)

If you’re running macOS 10.13.4 High Sierra or macOS 10.14 Mojave, you may have seen a dialog that says an app isn’t optimized for your Mac. The message differs slightly between High Sierra and Mojave, with the High Sierra version telling you the developer needs to update the app to improve compatibility whereas Mojave saying bluntly that the app won’t work with future versions of macOS.

  • Is Not Optimized For Your Mac Pc
  • Is Not Optimized For Your Macbook

What’s going on here, what should you do, and when should you do it?

What’s Going On: 32-bit and 64-bit Apps

Over a decade ago, Apple started to transition all the chips used in Macs, along with macOS itself, from a 32-bit architecture to a 64-bit architecture. Without getting into technical details, 64-bit systems and apps can access dramatically more memory and enjoy significantly faster performance.

Apple knew it would take years before most people were running 64-bit hardware and 64-bit-savvy versions of macOS, so it allowed macOS to continue running older 32-bit apps. However, maintaining that backward compatibility has a cost, in terms of both performance and testing, so at its Worldwide Developer Conference in 2017, Apple warned developers that High Sierra would be the last version of macOS to support 32-bit apps “without compromise.” At the next WWDC in June 2018, Apple announced that macOS 10.14 Mojave would be the last version of macOS to run 32-bit apps.

Happily, the only “compromise” for 32-bit apps in Mojave is the warning dialog, which appears every 30 days when you launch an older app. But the writing is on the wall: 32-bits apps will cease working in macOS 10.15. Is Not Optimized For Your Mac Pc

How Do You Identify 32-bit Apps?

May 25, 2018 See a List of 32-bit Mac Apps ‘Not Optimized for Your Mac’ To see a list of which of your Mac apps are 32-bit, and therefore not optimized for your Mac, without needing to launch every app, you can turn to the handy System Information window. To use it, start from your Mac desktop and then click once on the Apple icon in the upper left. 'Steam is not optimized for your Mac and needs to be updated' every time I reboot. Solved Any time I reboot my MBP (13', 2016, 10.14.6), I get the message in the title.

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Apple provides a tool to help you find 32-bit apps. Follow these steps:

  1. From the Apple menu, choose About This Mac and then click the System Report button.
  2. In the System Information utility that opens, scroll down to Software in the sidebar and select Applications. It may take a few minutes to build the list of every app on all mounted drives.
  3. When it finishes, click the 64-bit column header (No means 32-bit; Yes means 64-bit) to sort the list, and select an app to see its details in the bottom pane.

This technique works in both High Sierra and Mojave, but in Mojave, System Information includes a better-formatted section, called Legacy Software, that also provides a list of 32-bit apps. However, this list may be smaller because it includes only those apps that you’ve launched. Since it’s likely that you open old 32-bit apps only occasionally, you can’t trust the Legacy Software list to be complete.

If you find System Information’s Applications list overwhelming, check out the free 32-bitCheck utility from Howard Oakley. It performs exactly the same task but lets you focus on a particular folder and save the results to a text file for later reference.

What’s Your Next Step?

Once you know which apps won’t work in macOS 10.15, you can ponder your options. Luckily, you have some time. We expect Apple to release macOS 10.15 in September 2019, but you don’t need to upgrade right away—in fact, we recommend that you wait a few months after that to allow Apple time to fix bugs.

That said, we do encourage upgrading eventually, and if you buy a new Mac after September 2019, it will come with macOS 10.15. So you need to establish a plan—it’s better to know what you’re going to do than to be forced into action if you have to replace your Mac on short notice. For each 32-bit app on your Mac, you have three options:

  • Delete it: It’s not uncommon to have old apps that you haven’t used in years and won’t miss. There’s no need to waste drive space on them in macOS 10.15.
  • Upgrade it: Apps in active development will likely have a new version available. The main questions are how much the upgrade will cost and if there are compatibility issues associated with upgrading. You can upgrade at any time, although it’s likely worth waiting until you’re ready to move to macOS 10.15 to minimize costs. The apps that cause the most irritation here are things like the Adobe Creative Suite—Photoshop, Illustrator, and InDesign—that require switching to a monthly subscription.
  • Replace it: If no upgrade is available, the cost of upgrading is too high, or upgrading comes with other negatives, it’s time to look for an alternative. This can take some time, so it’s worth starting soon to ensure that the replacement will provide the features you need before macOS 10.15 forces the decision.

Needless to say, if you’d like recommendations about how to proceed with any particular app or workflow, get in touch with us!

We all know that certain apps and products are to be used with certain devices – but what does it mean when you get the notification that something you are using is an app not optimized for your device? Starting in late 2017 and early 2018, there were changes made to certain apps and devices, particularly Android devices, that required metadata to verify the version needed for Android libraries. This is just a bit of extra work for developers, but some of them aren’t willing to put in that work.

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However, people have started to notice that even Android apps aren’t working with all devices, which can be frustrating, to say the least.

What Does “This App May Not Be Optimized For Your Device” Mean?

When you get an error that says “this app may not be optimized for your device” when you are installing a new app or even just updating it, you can get confused. Does this mean that you cannot use the app or that you just won’t have the “best” experience? App optimization is done by developers on a regular basis to ensure that the performance of the app is standard across screens and operating systems. Developers often need to “optimize” to certain screen sizes and capabilities.

In many cases, it could mean that your experience won’t be that different at all. You will be able to do everything, have complete control, and everything is seamless. Other times, you won’t be able to work with some features of the app, you may not see anything, or it could even slow down your tablet to the point where it crashes.

There are a few different reasons that you may be getting that “app is not optimized for your device” error, they include:

  • You need to clear your cache
  • You need to update your Android version to the newest version
  • You may not have enough space on your device to download the assets
  • You have a less powerful CPU than is necessary
  • Your screen configuration is incompatible with the app
  • Your device is too old for the latest updates

If you get this notification, fear not! There are some things that you can do.

Device Not Compatible With Some Apps? What To Do

If you get this error notice quite a bit, there are some different things that you can do for your Android tablet or phone. Not all methods will work, but usually, you will have some success with the following:

Force Close The Google Play Store

The first thing you can try is to clear the data on the Google Play Store. This can help to solve many small compatibility issues. To do this, you need to go to your phone or tablet’s settings application.

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  1. Click on the “Settings” Icon
  2. Select the “Apps” option
  3. Click “Google Play Store”
  4. Select “Force Stop”
  5. Click “Clear Data”
  6. Restart your device

Once you’ve gone through every step – and restarting your device is a necessary step – you can try to redownload the app. If this doesn’t work, you may need to try another method. You will have to delete the app and try again.

Update Your Device’s Android Version

If you haven’t updated your phone or tablet’s version lately, it can impact compatibility. You should keep your versioning updated on a regular basis, but it can be difficult to remember if you have to manually do it. You may also have it scheduled but need to update sooner. If that is the case, you need to go back to the settings application.

  1. Click on the “Settings” Icon
  2. Select “Check Updates”
  3. If You See Any Updates Listed, Click “Install”
  4. Restart Your Device
  5. Try Downloading Or Reinstalling The App Is Not Optimized For Your Mac (1)

If you do see updates, that is usually the problem and why you keep getting error messages. If you didn’t see updates or that didn’t work, you can try something else.

The Google Account Trick

The next thing you can do is a bit more labor intensive, but it actually solves a ton of problems. Start by removing and then adding your Google Account back to the device. Sometimes, this reset will fix things. Add the account back will help Google to fix any issues with your device and ensure that you are getting apps optimized for your device. This is particularly effective on tablets. To do this,

  1. Click on the “Settings” Icon
  2. Select “Accounts”
  3. Pick Your Account Name
  4. Select “Remove Account”
  5. Restart Your Device
  6. Once Restarted, Click on the “Settings” Icon
  7. Click “Add Account”
  8. Add Your Account Of Choice
  9. Try To Redownload The App

If you are still getting an error after trying this step, the problem may be with the app and require assistance from the developers. Make sure to check social media and other comments on the app to ensure that it is your problem and not a widespread issue.

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Most problems will be fixed with one of these three options or a combination of them. However, older phones and tablets or those that have been damaged may not be able to use newer apps – especially those that utilize newer technology. In that instance, it may be time to get a new device or find another app that will work with your device.

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Is not optimized for your Mac? ›

4. The warning states that the app is not “optimized for your Mac” and lets you know that it needs to be updated by the developer to improve compatibility. The warning will appear only once — the first time you open the app.

How do I allow an app to run on Mac? ›

View the app security settings on your Mac

In System Preferences, click Security & Privacy, then click General. Click the lock and enter your password to make changes. Select App Store under the header “Allow apps downloaded from.”

How do you install an app on Mac that Cannot be verified? ›

Control-click the app icon, then choose Open from the shortcut menu. Click Open. The app is saved as an exception to your security settings, and you can open it in the future by double-clicking it just as you can any registered app.

What is the NetServer app? ›

In a nutshell, NetServer is a layered, factory-driven library that enables developers to conduct Create, Read, Update and Delete (CRUD) operations to the SuperOffice database, and more.

What's the opposite of optimized? ›

What is the opposite of optimized?
32 more rows

Why can't I download certain apps on my Mac? ›

You might need to have a payment method on file, even if the app that you want to download is free. Check the payment method you have on file and make sure that it isn't expired, declined, or failed. If you can't update apps and a message says that “your account is disabled in the App Store”, contact Apple Support.

How do you enable extensions on Mac? ›

Extensions, such as Markup, add extra functionality to apps, the Finder, and the Touch Bar. To change these preferences, choose Apple menu > System Preferences, then click Extensions .

How do I allow apps to install on my Mac anywhere? ›

The Gatekeeper settings can be found in System Preferences > Security & Privacy > General. The Gatekeeper options are located beneath “All apps downloaded from:” with the choice of “Anywhere” missing. Now, relaunch System Preferences and head back to the Gatekeeper settings.

What is IBM i NetServer? ›

IBM® i Support for Windows Network Neighborhood (IBM i NetServer) is an IBM i function that enables Windows 2000, Windows XP, Windows Server 2003, and Windows Vista clients to access IBM i shared directory paths and shared output queues.

How do you bypass MacOS Cannot verify? ›

How to get rid of “Apple cannot check it for malicious software”
  1. Go to System Preferences ➙ Security & Privacy ➙ General.
  2. Click the lock in the lower right corner of the window.
  3. Enter your username and password, when prompted, and click Unlock.
  4. Click the App Store and Identified Developers radial button.
20 Jul 2022

How do I turn off app verification on Mac? ›

Apple menu -> System Preferences -> Security and Privacy, make sure the Security dialog marks the application as OK.

How do I manually verify an app on Mac? ›

Manually downloaded software updates can be verified manually
  1. Double-click the software update package (. ...
  2. Click the lock icon or certificate icon in the upper-right corner of the installer window to see information about the certificate. ...
  3. Select "Apple Software Update Certificate Authority," as pictured below.
31 Jan 2022

What do you mean by Optimised? ›

verb (used with object), op·ti·mized, op·ti·miz·ing. to make as effective, perfect, or useful as possible. to make the best of. Computers. to write or rewrite (the instructions in a program) so as to maximize efficiency and speed in retrieval, storage, or execution.

What is another word for optimized? ›

In this page you can discover 12 synonyms, antonyms, idiomatic expressions, and related words for optimise, like: optimize, utilise, optimisation, fine-tune, improve, evaluate, optimal, enhance, maximize, maximise and optimum.

What is meant by optimization? ›

Definition of optimization

: an act, process, or methodology of making something (such as a design, system, or decision) as fully perfect, functional, or effective as possible specifically : the mathematical procedures (such as finding the maximum of a function) involved in this.

How do I optimize my Mac? ›

Optimize the inside of your Mac with a clean-up
  1. Step One: Update your software. ...
  2. Step Two: Tidy up your start up. ...
  3. Step Three: Clean out unused apps. ...
  4. Step Four: Clean out the downloads folder. ...
  5. Step Five: Tidy up your storage disk. ...
  6. Step Six: Clean out the cache. ...
  7. Step 7: Remove resource-hungry programs. ...
  8. Step 8: Take out the trash.

What does it mean to optimize your Mac? ›

macOS can help make more room on your Mac by optimizing its storage. When space is needed, it keeps files, photos and videos, Apple TV movies and shows, and email attachments in iCloud and makes them available on demand. Files don't take up space on your Mac, and you can download the original files when you need them.

What does it mean when your Mac says optimizing your Mac? ›

In macOS, Apple includes a feature that can optimize the storage on your Mac by reducing the amount of space that data takes up on your Mac's internal drive. It does this by offloading certain files, data, and documents to iCloud and iCloud Drive when space on your Mac is running low.

How do I optimize my Mac performance? ›

Here are the best ways to speed up a Mac:
  1. Clean up system files and documents. ...
  2. Detect & kill demanding processes. ...
  3. Speed up startup time: Manage startup programs. ...
  4. Remove unused apps. ...
  5. Run a macOS system update. ...
  6. Upgrade your RAM. ...
  7. Swap your HDD for an SSD. ...
  8. Reduce visual effects.
18 Aug 2022

How do I know when my Mac is optimized? ›

The answer is simple; do nothing, let the optimization process complete on the Mac. The optimizing process can take a few minutes to a few hours, depending on a variety of things, including speed of the computer and drive, and what tasks are being performed.

What happens if I turn off optimize Mac storage? ›

What happens if I turn off Optimize Mac Storage? Actually, Optimized Storage usurps control over local storage by automatically deleting selected files. So if you turn it off, all your data will be stored both in iCloud and on your Mac computer.

How do I optimize my Mac after update? ›

Click on the Apple logo. From the drop-down menu, select About This Mac > Storage > Manage. You'll see a window like below, click on the “Optimize” button for Optimize Storage.

Why does my Mac keep saying not enough disk space when there is? ›

This conflict could be attributed to the so-called “purgeable” space. It's basically the space taken by all the unnecessary stuff that can be purged and converted into free storage. One way to free up your purgeable space is to disable iCloud drive optimization.

How do I empty my Mac cache? ›

How to clear the cache on Mac: User cache
  1. Open Finder, click go and click Go to Folder.
  2. Type ~/Library/Caches.
  3. Right-click on a file.
  4. Click move to Trash.
27 Jul 2022

How do you clear system storage on a Mac? ›

3. How to Clean up System Storage on Mac Manually
  1. Empty Trash. Dragging the files that you don't need into the Trash doesn't mean the complete deletion from you Mac, but emptying the Trash does. ...
  2. Manage Time Machine Backup. ...
  3. Optimize Your Storage. ...
  4. Remove iOS Backups. ...
  5. Delete Cache Files. ...
  6. Update MacOS.

What is meant by Optimising? ›

Definition of optimization

: an act, process, or methodology of making something (such as a design, system, or decision) as fully perfect, functional, or effective as possible specifically : the mathematical procedures (such as finding the maximum of a function) involved in this.

How do I turn off security preferences on Mac? ›

To change these preferences on your Mac, choose Apple menu > System Preferences, click Security & Privacy , then click General. Note: If the lock at the bottom left of the pane is locked , click it to unlock the preference pane.

Why is my Mac so slow all of a sudden 2022? ›

If you find your Mac is running slowly, there are a number of potential causes that you can check. Your computer's startup disk may not have enough free disk space. To make disk space available, you can move files to another disk or an external storage device, then delete files you no longer need on the startup disk.

How do you increase RAM on a Mac? ›

More videos on YouTube
  1. Step 1: Remove the MacBook Cover. First, shut down your computer if it isn't already. ...
  2. Step 2: Remove the Old RAM. Once the cover is off, you should be able to spot the RAM. ...
  3. Step 3: Install the New RAM. ...
  4. Step 4: Confirm That Your Mac Recognizes the RAM.

Why is my Mac running so slow? ›

Your Mac may be slow due to an outdated macOS or an overloaded cache. Malware can also infect your Mac and slow it down by hogging system resources. If your Mac is old, it might struggle to run modern software, and you may need to replace it.


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