Best Free Software Mac Os X

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Which Mac operating system is the best is a topic of numerous debates among Apple fans.

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Since the mission of this blog is to refute myths and legends around Macs, it’s time for me to provide my 2 cents about the issue on hand. While everything below is just my opinion, as a long-time Mac user and veteran software engineer, I hope my opinion worth something.

The best Mac OS version is the one that your Mac is eligible to upgrade to. In 2021 it is macOS Big Sur. However, for users that need to run 32-bit apps on Mac, the best macOS is Mojave. Also, older Macs would benefit if upgraded at least to macOS Sierra for which Apple still releases security patches.

How to Tell Which macOS You Are Running

To find out which macOS is currently running on your Mac, follow these steps:

  1. Click on Apple logo in the top left corner of the menubar
  2. In the dropdown click on the first item: About This Mac
  3. The first line in the Overview tab is the name of the current OS.

What Version of OS Can My Mac Run?

Not all Macs can be upgraded to the latest OS version. For instance, old Macs powered by PowerPC CPUs cannot run OS intended for Intel-based computers. Also, some versions have hardware limitations.

For instance, Mojave cannot be installed on MacBook Pro earlier than Mid 2012 model.

Check below to know exactly what version of OS your Mac can run.

Which OS is Best for my Mac

Anytime someone asks me which OS is best for them I always suggested going with the latest. Things have changed recently, however.

Should I Upgrade to macOS Catalina or Big Sur?

While personally I like macOS Big Sur and have it installed on my MacBook Pro, it comes with serious breaking changes.

The first issue is compatibility.

Big Sur is a transition OS which is designed to help Apple to move from Intel processors to their own chips on ARM.

After I installed Big Sur on my MacBook Pro mid 2020 (pre-Silicon), most of my apps, including Microsoft Office, were working as expected.

However, my VMWare Fusion 11 does not start anymore, so I have to purchase a new license if I want to keep using it (or roll back to Catalina). Luckily, I took a full backup before the upgrade.

The second breaking issue is the lack of 32-bit app support.

macOS Catalina and Big Sur can only run 64-bit apps.

If you wondering whether you should upgrade to macOS Catalina or Big Sur, first verify that you don’t have any 32-bit apps. But first, take a back up, so you can go back in case something breaks after the upgrade.

For instance, I had to remove uTorrent after upgrade. And I didn’t know that uTorrent is 32-bit!

How to Know If App is 32-bit or 64-bit

To find out whether the app on your Mac is 32-bit or 64-bit follow these steps:

  1. Click on Apple logo in the top left corner of the Mac screen
  2. Click on About This Mac option
  3. Click on System Report button in Overview tab (first one)
  4. Scroll down to Software -> Applications
  5. Find the app and check Kind

Which macOS Should I Use

If you have an older Mac which is not eligible to upgrade with some latest software or hardware, I’d suggest upgrading at least to Sierra (or better High Sierra) for the following reasons:

  • Sierra is still supported by Apple, and it gets security updates
  • APFS file system is available
  • It supports Siri
  • Significant security improvements

The most important point when choosing the best OS is the ability to get security updates. While Apple generally does not announce the OS end of life dates, it is possible to know when they stop releasing security updates from this page.

For instance, according to the page, the last security update for OS X Yosemite was released on September 12, 2017. The last update for OS X El Capitan was in July 2018, and Carnegie Mellon University confirmed that El Capitan’s end of life date was August 2018.

Snow Leopard Myth

I know that some users on forums believe that the best OS version for Macs was Snow Leopard. But that is a myth. And I know how such myths get created.

Once I worked in the company, which was selling a 20-year old product. And customers were still using and didn’t want to switch to new versions, because the old one was rock solid.

I then talked to the engineer who worked on the project, and he revealed that the product was a total disaster when it was first deployed. Engineers had to work on-site for almost a year in order to fix all bugs.

After five or so years of polishing the product, it becomes virtually bug-free, and nobody now remembers how bad it was when it was first rolled out. A similar thing happened Snow Leopard, and it was recognized as best mac os version after some time.

How to Update to the Latest Version

There are two ways to update to the latest OS version on Mac:

  • From the Software Update section in System Preferences
  • Use a download link

Using Software Update

This is by far the best option, but it only available if you have Yosemite, or later OS installed already. If you enabled automatic updates, then Mac will inform you that the next macOS is available.

Just open System Preferences, go to Software Update and click on the Upgrade Now button.

This method is also best if wondering how to check if you have the latest version of OS installed on your Mac. Only the version compatible with your hardware will appear here.

For instance, my the latest version for Mac Mini 2012 is Mojave, I can’t install anything newer than that.

If you are having problems with updates or having issues post-upgrade check my post about troubleshooting macOS.

Using download links

For older systems or in case you need to downgrade, you have to download a standalone installer in DMG format. DMG stands for disk image, similar to ISO, just different formats.

After downloading the installer, just double click on it and follow instructions. Again, do not forget to take a backup before the upgrade.

Mac OS Comparisons: Requirements, Features, Compatibility, Download Links

Following is a high-level description of all Mac operating systems as early as Mountain Lion.

You can refer to those descriptions when deciding which operating system is best for your iMac, Mac Pro, Mac mini, or MacBook.

With each OS description, I included a list of Macs supported. However, you can use Mac OS compatibility checker for more detailed information.

macOS 11 Big Sur

macOS v11 (codename Big Sur) is the latest version of the operating system for Apple computers.

Release date: October 13, 2020

Hardware Requirements: RAM requirement 4GB. Big Sur is the first OS to support new Macs using ARM technology (in the future).

Features

  • The biggest design refresh since macOS X.
  • Support for new ARM processors.
  • Safar improved performance and power consumption.
  • Time Machine supports backup to APFS volumes.
  • One-click translation for 7 languages.
  • Redesigned maps

Software Compatibility Issues

Only 64-bit apps are allowed to run on Big Sur.

How to install

Video download software for mac

There are two ways to install Big Sur: enable automatic updates in System Preferences or download by using the following link.

Or check my post with tips on installing macOS on unsupported devices.

List of Apple computers compatible with macOS Big Sur

  • MacBook (2015 and later)
  • MacBook Air (2013 and later)
  • MacBook Pro (2013 and later)
  • Mac mini (2014 and later)
  • iMac models (2014 and later)
  • iMac Pro (2017 and later)
  • Mac Pro (2013 and later)

macOS 10.15 Catalina

Release date: October 7, 2019

Hardware Requirements: RAM requirement increased from 2GB to 4GB.

Features

  • Introduced Sidecar, which allows for Macs to use an iPad as an external display.
  • iTunes was replaced by separate apps: Music, Podcasts, and TV.
  • Find My Mac and Find My Friends have merged into one app.

Software Compatibility Issues

macOS Catalina is the first Mac operating system that does not support 32-bit applications. Only 64-bit apps are allowed to run on Catalina.

How to install

There are two ways to install Catalina: enable automatic updates in System Preferences or download by using the following link.

List of Apple computers compatible with macOS Catalina

  • MacBook (Early 2015 or later)
  • MacBook Air (Mid 2012 or later)
  • MacBook Pro (Mid 2012 or later)
  • Mac mini (Late 2012 or later)
  • iMac models (Late 2012 or later)
  • iMac Pro (All models)
  • Mac Pro (Late 2013)

macOS 10.14 Mojave

Release date: September 24, 2018

Hardware Requirements: 2GB RAM and 18.5GB free space on disk

Features

  • The main feature of Mojave is “Dark Mode”
  • FaceTime adds group feature which allows chatting with up to 32 people
  • News, Stocks, Voice Memos, and Home apps were ported from iOS to Mac.

How to install

If your Mac is eligible to update to Mojave, then the easiest way to install it is by enabling automatic updates. Downloading a standalone Mojave installer could be a little tricky.

List of Apple computers compatible with macOS Mojave

  • MacBook (Early 2015 or later)
  • MacBook Air (Mid 2012 or later)
  • MacBook Pro (Mid 2012 or later)
  • Mac mini (Late 2012 or later)
  • iMac (Late 2012 or later)
  • iMac Pro (All models)
  • Mac Pro (Late 2013 and 2010-2012 models with upgraded GPU)

macOS 10.13 High Sierra

Release date: September 25, 2017

Hardware Requirements: 2GB RAM and 14.3GB free space on disk

Features

  • APFS (Apple File System) becomes the default file system in High Sierra. It’s a significant upgrade from the older HFS+ in terms of speed, size, and security
  • iCloud support of Messages which allows sync messages of the account across multiple devices
  • Mail app uses 35% less storage space due to optimizations

List of Apple computers compatible with macOS High Sierra

  • MacBook (Late 2009 or newer)
  • MacBook Pro (Mid 2010 or newer)
  • MacBook Air (Late 2010 or newer)
  • Mac mini (Mid 2010 or newer)
  • iMac (Late 2009 or newer)
  • Mac Pro (Mid 2010 or newer)

How to install

Here is a High Sierra download link.

macOS 10.12 Sierra

This is the first macOS version. Previous OS versions for Macs were called OS X (X stands for 10).

Release date: September 20, 2016

Hardware Requirements: 2GB RAM and 8GB free space on disk

Features

  • Siri was introduced to Macs
  • Optimized storage with iCloud sync
  • Auto-lock feature allows unlocking MacBook with paired Apple Watch
  • APFS preview available
  • Disk Utility can manage RAID sets again
  • Significant security improvements

How to install

Here is a Sierra download link.

List of Apple computers compatible with macOS Sierra

  • MacBook (Late 2009 or newer)
  • MacBook Pro (Mid 2010 or newer)
  • MacBook Air (Late 2010 or newer)
  • Mac mini (Mid 2010 or newer)
  • iMac (Late 2009 or newer)
  • Mac Pro (Mid 2010 or newer)

OS X 10.11 El Capitan

Last OS X version.

Release date: September 30, 2015

Hardware Requirements: 2GB RAM and 8GB free space on disk

Features

  • System Integrity Protection – a security feature that protects even when the root user executes the process
  • Performance improvements: open PDF files four times faster, Mail is twice faster, launching apps 40% faster
  • Notes app similar to the app in iOS

Macs compatible with OS X El Capitan

same as OS Mountain Lion.

How to install

Here is El Capitan download link.

OS X 10.10 Yosemite

Release date: October 16, 2014

Hardware Requirements: 2GB RAM and 8GB free space on disk

Macs compatible with OS X Yosemite

Same as OS Mountain Lion.

Features

  • Major user design overhaul
  • Introduction of Handoff and Continuity features
  • Photos app replaced iPhoto and Aperture

How to install

Here is Yosemite download link.

OS X 10.9 Mavericks

First free Mac OS. Previous OS versions vary from $19.99 to $129.

Release date: October 22, 2013

Hardware Requirements: 2GB RAM and 8GB free space on disk

Features

  • Compressed Memory feature automatically compresses inactive apps when approaching maximum memory capacity
  • Timer coalescing is a feature that reduces CPU usage by up to 72 percent
  • App Nap puts apps that are not currently visible to sleep

Macs compatible with OS X Mavericks

Same as OS Mountain Lion.

How to install

OS X Mavericks installer is not available on Apple Site. Follow instructions here to install Mavericks.

OS X 10.8 Mountain Lion

Must be purchased. Fixed many bugs introduced in OS X Lion.

Release date: July 25, 2012

System Requirements: 2GB RAM and 8GB free space on disk

Features

  • New apps: Notification Center, Notes, Messages, Game Center
  • AirPlay mirroring allowed to mirror Mac screen to Apple TV
  • Application updates automatically install from the App Store

List of Apple computers compatible with OS X Mountain Lion

  • iMac (Mid-2007 or newer)
  • MacBook (Late 2008 Aluminum, or Early 2009 or newer)
  • MacBook Air (Late 2008 or newer)
  • MacBook Pro (Mid/Late 2007 or newer)
  • Mac mini (Early 2009 or newer)
  • Mac Pro (Early 2008 or newer)
  • Xserve (Early 2009)

How to install

Mountain Lion installer is not available on Apple Site. Follow instructions here to install OS X Mountain Lion.

List of older Mac OS Versions

Following Mac OS versions are still running on older Macs, but Apple does not support them anymore, and there is no point to upgrade (or downgrade) to them:

  • OS X 10.7 Lion
  • OS X 10.6 Snow Leopard
  • Mac OS X 10.5 Leopard
  • Mac OS X 10.4 Tiger
  • Mac OS X 10.3 Panther
  • Mac OS X 10.2 Jaguar
  • Mac OS X 10.1 Puma
  • Mac OS X 10.0 Cheetah

The data on your Mac, which is important, can be vulnerable to prying eyes or malicious hackers, etc. Luckily, encryption software is here to help. Encryption is a good way to protect your data. This article will talk about the best encryption software for Mac to protect your apps, emails, disks, folders, files and other important or sensitive data. There’s even free Mac encryption software, which will also be covered in the article.

Why do we encrypt?

You may keep sensitive information, personal or work related, on your Mac, such as personal photos, critical bank information or business documents etc., which if leaked or stolen, could potentially lead to fraud, blackmail, identity theft or other threats. Encryption makes your information inaccessible or unreadable by an unauthorized third party. That’s why Mac encryption apps can be helpful if not necessary.

8 best encryption software for Mac 2021

#1 Cisdem AppCrypt — the best app encryption software for Mac

Software

Cisdem AppCrypt for Mac is the best encryption software when it comes to keeping apps safe from others, due to its high ease of use and effectiveness. You may want to encrypt certain apps (e.g. Photos) when others can access your Mac so as to protect privacy.

AppCrypt helps you easily and safely lock apps without modification on any system or application files. You just need to set a strong password to protect your apps from unapproved access and usage. If someone tries to open an encrypted app and enters a wrong password, the software will record the failed attempt with date and time and take a photo of the intruder. In addition to encrypting apps, it can also stop unauthorized access to specific websites.

AppCrypt

  • Encrypt any apps such as Photos, Messages, Notes, Mail, Quicken, etc.
  • Record failed attempts to open locked apps with time, date and photos of intruders
  • Block websites and webpages on Safari and Google Chrome
  • Provide a useful schedule feature
  • Hard to bypass and easy to use
  • Help guard privacy, block unwanted websites and more
  • Can be used for privacy protection, productivity, parental control, etc.
  • Support macOS 10.10 or later
Free Download

Steps to encrypt apps on Mac with the software

1. Download AppCrypt and install it.

2. When you open the software for the first time, set a password. Read the warning before you submit the password.

3. Click the software’s icon and choose Open Main Window.

4. In the main window, click Add App. Select the apps that you want encrypt and click Add. Alternatively, you can do it by dragging apps into the left sidebar.

Now the selected Mac apps are protected by password and become inaccessible. To turn off encryption, in the left sidebar of the main window, select the app and then click Remove App.

Want to make the encryption even more effective? Here’s a tip. In the top right corner of the main window, click Menu > Preferences. Enable Launch at system startup.

Pros

  1. Password protect any apps on your Mac effectively
  2. Record unauthorized attempts to access the protected apps
  3. Also block websites and webpages with password
  4. Easy to use with intuitive interface

#2 GNU Privacy Guard — the best email encryption software for Mac

GNU Privacy Guard (also known as GPG or GnuPG) is the best free software for email encryption. In addition to macOS, it’s available for Windows, Linux and more.

GPG, which is PGP-based, uses two forms of encryption: symmetric-key cryptography and public-key cryptography, bringing good speed and security. It can encrypt both email messages and attached files such as PDF documents and images. Once an email is encrypted by it, only the sender and recipient are able to see the content.

Software

Note that this piece of email encryption software can encrypt only the content of your email but not its subject line. If it’s a confidential email, make sure that the subject line doesn’t give away anything.

Steps to encrypt email on Mac with the software

1. Install the software on your Mac.

2. Generate a key pair and distribute your own public key.

3. Import someone else’s public key.

4. Drag other people’s public key into the system as recipients, and then encrypt your email on Mac.

You should decrypt an email with your private key.

For more details, you can go to GPG's website.

Pros

  1. Free Mac encryption software for Mac
  2. Support expiring signatures and paired keys
  3. Encrypt emails and other data
  4. Support multiple algorithms
  5. Cross-platform

#3 FileVault — the best disk encryption software for Mac

FileVault is a piece of Mac encryption software for users of Mac OS X 10.7 Lion or later. It is a method of using encryption with volumes on Mac computers. Encryption and decryption are performed on the fly.

FileVault 2 is the newer version that can encrypt the entire macOS startup volume and typically includes the home directory, abandoning the disk image approach. You can use FileVault 2 to help prevent access to documents and other data stored on your startup disk.

While a user’s account password could unlock the FileVault encryption when logging into the Mac, the user would also need to create a “Master Password” in the event that the user account password was lost.

Steps to encrypt disk on Mac with the software

1. Go to System Preferences.

2. Go to the Security & Privacy pane.

3. Select the FileVault tab.

4. Click the lock to make changes and click the Turn On FileVault... button.

Pros

  1. Mac’s built-in encryption software
  2. Allow you to keep unwanted visitors away
  3. Automatically clean up unnecessary system files
  4. Use the XTS-AES 128-block cipher

Cons

  1. Encrypt only the home folder (The files outside the home folder would be totally unprotected in the event of theft or other unauthorized access.)

#4 VeraCrypt — the best file encryption software for Mac

VeraCrypt, open-source file encryption software, is used for on-the-fly encryption. It can create a virtual encrypted disk or container within a file or encrypt a partition or the entire storage device. The software is available for macOS, Windows and Linux.

The software is a fork of the TrueCrypt project (which is discontinued). There have been many improvements and optimizations since its initial release in 2013.

VeraCrypt supports AES, Twofish, Serpent and some other well-known encryption ciphers. It supports the creation of hidden, encrypted volumes within other volumes.

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Steps to encrypt files on Mac with the software

1. Download and install the file encrypt software on your Mac. Open it.

2. Select a slot and click Create Volume.

3. Choose to create an encrypted file container and set it to be a standard volume. Specify a location on your computer.

4. Choose a desired encryption algorithm and set the volume size.

5. Now set a volume password.

6. Once the encrypted volume is created, you can use it to encrypt the files on your Mac.

Pros

  1. Free and open-source
  2. On-the-fly encryption
  3. Excel at encrypting Mac files
  4. Help prevent data leaks and theft
  5. Cross-platform

#5 Disk Utility — the best Mac software for folder encryption

Included with macOS, Disk Utility allows users to effortlessly and effectively encrypt folders, which makes it the best free folder encryption software for Mac.

Mac Os X Download

It offers two types of encryption: 128-bit AES encryption and 256-bit AES encryption. The former should be enough for most users. If you want an even higher level of security, you can choose the latter.

There are to ways to do the encryption: directly encrypting an existing Mac folder (via the Image from Folder option) or creating an encrypted container or more precisely disk image for folders (via the Blank Image option).

Steps to encrypt folders on Mac with the software

1. On your MacBook Pro, MacBook Air or iMac, etc., open Disk Utility.

2. From the menu bar, select File > New Image > Image from Folder.

3. Select the folder that you want to encrypt and click Choose.

4. Choose a location to store the encrypted folder. Select a desired type of encryption and set a password.

5. Select an Image Format. Here I choose read/write so that I can add files to this encrypted Mac folder.

6. Click Save. And the software will start encrypting.

Pros

  1. Built-in to Mac and free to use
  2. Easy to encrypt and decrypt
  3. Give users enough options

#6 Finder — the best Mac software for USB encryption

Since macOS Mojave, you can encrypt and decrypt USB flash drives (aka thumb drives) or USB-connected hard drives via Finder without erasing data. It’s a piece of free encryption software for Mac that inherits the same XTS-AES encryption as FileVault 2. Once you encrypt data on your removable drives, this Mac encryption software won’t let you access them without a correct passphrase.

Steps to encrypt USB drive on Mac with the software

1. Plug USB flash drive into your Mac computer.

2. Launch the Finder app.

3. Control-click the disk icon in the left sidebar.

4. Click Encrypt (name of your USB) in the dropdown menu.

5. Enter a password and encrypt the drive.

Pros

  1. Built-in to Mac, requiring no installation
  2. Easy to use

Cons

  1. Won’t see the encryption option if you haven’t formatted the USB flash drive through GUID partition map before

#7 Unarchiver — the best Mac software for ZIP file encryption

Unarchiver is a compression and decompression program. Also, it can be used as the best compression program to encrypt files. The software creates password protected zipped files on Mac in one click and makes working with three formats of compressed files easy.

You can pack all your important files in an encrypted, password protected archive by compressing your file and selecting a password to protect your archived file.

Steps to encrypt ZIP file on Mac with the software

1. Download and install the Zip encryption software on Mac.

2. Click on the iPack icon.

3. Add the files to the new pop up dialog.

4. Click on the Compress icon.

5. It will ask you to rename the ZIP file, and from this dialog, you can also set a password to protect your files.

Pros

  1. Zip and unzip files on Mac
  2. Open RAR, Zip, 7-zip, ISO, TAR and CHM files etc.
  3. Offer solid encryption for archives

#8 CloudMounter — the best Mac software for online data encryption

CloudMounter is designed to organize various cloud servers and connecting to web servers. It keeps your online data protected without unauthorized access and supports services like Dropbox, OneDrive, Google Drive and Amazon S3 etc.

Steps to encrypt online data on Mac with the software

1. Choose Encrypt from the context menu.

2. Type a password and verify it.

3. Tick the optional boxes and click on the Encrypt button.

Pros

  1. Mount the big cloud services
  2. Reliably encrypt and protect cloud files

Factors to consider when choosing the best encryption software for Mac

The type of encryption you need Some encryption apps such as AppCrypt are good at protect your apps, some excel at protecting files and folders, and some have a reputation for email encryption. It depends on your needs.

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The level of security There are various encryption algorithms. Different apps may use different algorithms. Some are weak (but still helpful enough for many), and some are stronger. Certain Mac encryption apps with stronger security may be a bit hard to set up and use for inexperienced users.

Encryption speed The speed is a factor that many people would consider. When it comes to encrypting large files or even entire drives, the speed is particularly important.

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Ease of use Encryption software that is too complex can be overwhelming to a novice. An intuitive and user-friendly one is better.

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Open-source software or not There are some free encryption software for you to choose, but free things are not necessarily good, similarly, encryption programs you need to pay are not always good, but you always get choices to try the applications for free before you pay for it.

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Final words

The above are the top 8 Mac encryption apps. All of them have their own features, advantages, and disadvantages. Before deciding which one to use, you’d better tested them to better understand the functions, speed, and compatibility. If the key feature satisfies your demands, you can first try the encryption software for Mac to lock your apps, emails, files, folders, USB drives, or other items.

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