--- title: Apple OS X Mountain Lion Reviews meta_title: 'Apple OS X Mountain Lion Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 222 reviews by the users' company size, role or industry to find out how Apple OS X Mountain Lion works for a business like yours. aggregate_rating: rating_value: 4.2 review_count: 222 scale: '5' date_modified: '2026-11-04' parent_category: name: IT Infrastructure url: https://www.g2.com/categories/it-infrastructure ---

Apple OS X Mountain Lion Reviews & Product Details

Value at a Glance

Averages based on real user reviews.

Time to Implement

1 month

Return on Investment

19 months

User Insights

Average based on 222 real user reviews.

Implementation Time

1 month

Perceived Cost

$$$$$

Apple OS X Mountain Lion Reviews FAQs

Generated using AI

Last updated: Nov 01, 2026

What is Apple OS X Mountain Lion, and what problem is it built to solve?

Apple OS X Mountain Lion is a Mac operating system that brought Mac use closer to the Apple mobile-device experience. Users describe it as helping connect Macs with iPhones and iPads through synced information, messaging, and notifications.

What company sizes and industries is Apple OS X Mountain Lion the best fit for?

Apple OS X Mountain Lion has the strongest fit with small-business and mid-market environments, with positive use also represented in larger organizations. The industries with the clearest presence include software and IT, along with education.

How long does it take to implement Apple OS X Mountain Lion across a team?

The most common reported time to go live is under one day, so implementation appears quick when the required Mac hardware and software are ready.

What customer support options does Apple OS X Mountain Lion provide, and how do users find the overall support experience?

The support experience is mixed: users describe help as useful and efficient when they reached out, while others report a less satisfying experience.

What tools and platforms does Apple OS X Mountain Lion integrate with, and how do these integrations help users get more value from the product?

Apple OS X Mountain Lion has 2 listed integrations, spanning Apple-device and workplace productivity categories.
  • Apple ecosystem: Apple iOS
  • Workplace productivity: Microsoft 365
These connections fit the product’s use as a Mac platform alongside Apple devices and familiar work tools, supporting a more connected day-to-day workflow.

What features or capabilities could make Apple OS X Mountain Lion even more useful?

The most useful improvements would address compatibility and make the system easier to keep usable on aging hardware.
  • Broaden compatibility with newer applications and devices to reduce friction when software or hardware changes.
  • Extend support for older Macs and provide ongoing security updates for systems that remain in use.
  • Improve performance and stability on older hardware, where slowdowns and application issues can interrupt work.

Is Apple OS X Mountain Lion considered safe and secure for handling data?

Apple OS X Mountain Lion has security controls that users valued, including safeguards around installing software. However, the operating system is no longer supported and does not receive security updates, making it a poor choice for handling sensitive data today.

Apple OS X Mountain Lion Reviews (222)

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Reviews

Apple OS X Mountain Lion Reviews (222)

View 1 Video Reviews
4.2
222 reviews

What do users say?

Generated using AI from real user reviews

Pros & Cons

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Verified User in Computer Software
UC
Verified User in Computer Software
Small-Business (50 or fewer emp.)
"I'm a big fan of apple and their products."
5/5
What do you like best about Apple OS X Mountain Lion?

More refined UX & Intuitive new features. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

There are no downsides as far as im concerned. Review collected by and hosted on G2.com.

Ravi B.
RB
Ravi B.
Senior Member Technical
Mid-Market (51-1000 emp.)
Originally submitted 1/22/2023
"Old but reliable Apple OS"
4.5/5
What do you like best about Apple OS X Mountain Lion?

It's versatile, fast, and intuitive to use. Its excellent GUI is interactive and insightful of all the processes running on it, making life much easier. Compared to windows, it is easier to use. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

Apple products are very expensive and do not come with much free software. Paid applications are good but come with limited validity which makes them very expensive to use. Review collected by and hosted on G2.com.

Shalisha H.
SH
Shalisha H.
Founder & Senior Repair Technician
Small-Business (50 or fewer emp.)
"It's an old OS but still liked by many"
3/5
What do you like best about Apple OS X Mountain Lion?

For a lot of free or outdated MacOS programs, MacOS X Mountain Lion is the highest system that you can upgrade an iMac or MacBook to in order for the software to be compatible. A lot of users who use DJ software prefer to use Mountain Lion. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

The interface is old compared to the current MacOS versions. The graphics, icons and preinstalled software are all dated. Trying to locate backwards compatible software like Google or Firefox to download and install is virtually impossible. Review collected by and hosted on G2.com.

BF
Bruce F.
system admin
Education Management
Small-Business (50 or fewer emp.)
Originally submitted 4/13/2021
"Great update for OSX"
5/5
What do you like best about Apple OS X Mountain Lion?

It made things run faster for me. The system felt that it was smoother and better RAM management. The Battery life had also improved for me. I got an extra 30 minutes to an hour when using my computer. The size it takes up on the hard drive was improved, too therefore saving space for my laptop. And of course, it being free update makes it great, more features without having to pay more. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

It was a big download for me, and it made no improvements to SSD use or drive platter speeds. Review collected by and hosted on G2.com.

Verified User in Information Technology and Services
UI
Verified User in Information Technology and Services
Enterprise (> 1000 emp.)
"Smoothest OS ever"
5/5
What do you like best about Apple OS X Mountain Lion?

Previously I used to work with Windows where a restart is must every 2-3 days, but with mac I have no more to worry about restarts anymore. Memory management is perfect. Ux, security, features, ease of use is just perfect. For a developer this OS is very nice to have. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

Nothing as of now, I am still exploring this wonderful OS. While moving from windows to mac os, it has some learning curve but yes that is expected when we move to new things. Review collected by and hosted on G2.com.

Samuel N.
SN
Samuel N.
Psychotherapist
Small-Business (50 or fewer emp.)
"Easily accessible and compatible for healthcare professionals"
4/5
What do you like best about Apple OS X Mountain Lion?

One of my favorite things about Apple OS X Mountain Lion is the dictation feature. As someone who works in healthcare and is required to create several notes every day, dictating my notes and having them immediately transcribed is a godsend. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

Sometimes when I have multiple applications and/or windows open, I do notice that my computer's functionality as a whole performs slower than usual. Is this concern directly attributed to Mountain Lion, or computer systems as a whole, I don't know, but it is something I do notice. Review collected by and hosted on G2.com.

RAFAEL R.
RR
RAFAEL R.
Markiting
Small-Business (50 or fewer emp.)
"apple is well developed for low ram memories"
5/5
What do you like best about Apple OS X Mountain Lion?

I really like this operating system because it works very well on low-developed apple products with a low ram and still the device is still very fluid. Samsung, for example, has an operating system that is a little incomplete, so much so that when you are using a Samsung device, it starts to give some crashes and visible bugs Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

I don't like a single thing about apple where its system is very restricted where some parts are good, like an apple product it's very rare to have or get some kind of virus, but on the downside it's too closed to do activities such as downloading apps from outside the app store, which is quite different from android that already lets you do this. Review collected by and hosted on G2.com.

Craig A.
CA
Craig A.
GM & CTO APAC
Mid-Market (51-1000 emp.)
"A dependable MAC OS if now dated"
2.5/5
What do you like best about Apple OS X Mountain Lion?

A dependable Mac Operating System from 2012 that introduced Malware blocking and iCloud services for backup and data sharing across both iOS and Mac OS. Apple also introduced Messages to replace iChat; this was a quantum leap for cross-device messaging. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

The OS, although great at the time (2012), is now very dated and does not have the applications or features that later versions of the OS include. There is also no support for 64-bit hardware in this Operating System, the standard hardware configuration for Apple devices. Review collected by and hosted on G2.com.

Balogun J.
BJ
Balogun J.
Security Professional & safely
Small-Business (50 or fewer emp.)
"My review on Apple mac OS X mountain Lion is that it is easy to download and install."
3.5/5
What do you like best about Apple OS X Mountain Lion?

I like the fact that it is one of the oldest mac OS that can be easily downloaded and installed, and an empty MacBook machine after then, It is possible to be upgraded to the latest version mac OS. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

My dislike is that during the revealing of Mac OS X Lion, it supports fewer DMG files to run applications, and also it gives very little of Mac apps and no update available when using it. Review collected by and hosted on G2.com.

Mahant S.
MS
Mahant S.
sevak
Enterprise (> 1000 emp.)
"Mountain Lion is giving lights"
5/5
What do you like best about Apple OS X Mountain Lion?

What I like the most about the Mountain Lion is its notification feature because when we drag two fingers, we will be able to see notifications. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

I wouldn't say I like the feature of not installing the latest software, like when I try to install some software like Adobe after effects for editing, but it's not work in the Mountain Lion because of the OS version. Review collected by and hosted on G2.com.

Questions about Apple OS X Mountain Lion? Ask real users or explore answers from the community

Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights.

GU
Guest User
•
Last activity almost 3 years ago

Is OS X Mountain Lion free?

Abdillah Z.
AZ
Abdillah Zarkasy
•
Last activity over 5 years ago

better this app is updated to increase capacity

Pricing Insights

Averages based on real user reviews.

Time to Implement

1 month

Return on Investment

19 months

Perceived Cost

$$$$$
Apple OS X Mountain Lion Comparisons
Apple OS X Mountain Lion Features
RAM management
I/O management
Data backup
System operations monitoring