--- 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

Generated from real user reviews
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TJ D.
TD
TJ D.
Instructional Aide
Small-Business (50 or fewer emp.)
"I love using a macbook for work and mountain lion is a good system."
5/5
What do you like best about Apple OS X Mountain Lion?

I like being able to see the control center and which apps are currently open on my computer. I like how fast the computer system is as well. I can do many things. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

Something I dislike about using the mountain lion system is the fact I can't play PC videogames on my computer due to not having enough power to be able to play the games. Review collected by and hosted on G2.com.

Iyaaz H.
IH
Iyaaz H.
Java Full Stack Developer
Mid-Market (51-1000 emp.)
"Fast as lion, Impressive features and compatibility"
5/5
What do you like best about Apple OS X Mountain Lion?

Notification Center in mountain lion is really the impressive and is a good attempt of a consistent user experience throughout the products be it iOS or macOs. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

Power Nap only is supported by small handful of macs, save as feature was improved later releases which was annoying at first. Few features are only supported by subset of macs need a good coverage here. Review collected by and hosted on G2.com.

Abhishek C.
AC
Abhishek C.
Senior Technology Architect
Mid-Market (51-1000 emp.)
"Reliable MAC Operating system with great features"
4.5/5
What do you like best about Apple OS X Mountain Lion?

Absolutely love the integration with Apple ecosystem, Notification Center, Messages, and speed improvements over the previous generation of OS. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

New features provided are only available on Mac books running latest hardware even though apple supports installation on older devices. Review collected by and hosted on G2.com.

Kaan U.
KU
Kaan U.
Software Specialist
Small-Business (50 or fewer emp.)
"Easy and Useful Operating System"
3.5/5
What do you like best about Apple OS X Mountain Lion?

Useful and it has good graphical details. The operating system is very easy and works very well. It doesn't crash or freeze under extra load. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

It didn't support NTFS file system. I think Apple should support other operating system extensions and support exe applications. Review collected by and hosted on G2.com.

Taylor A.
TA
Taylor A.
T
Mid-Market (51-1000 emp.)
"Great system for personal and professional use"
5/5
What do you like best about Apple OS X Mountain Lion?

I like the look of everything. It easy to navigate with the applications at an easy access. Nothing is too hidden and you can easily search for applications, etc. if they are readily available Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

Sometimes I dislike how things won't update automatically or I wont get notified that there is a new update for a while past a new software update, etc. But other than that no complaints. Review collected by and hosted on G2.com.

Siddhesh L.
SL
Siddhesh L.
software developer
Enterprise (> 1000 emp.)
"Apple OS X Mountain Lion One of the best OS to use"
4.5/5
What do you like best about Apple OS X Mountain Lion?

Preferences center where I can customize Mac as per my needs. It has high security standards. It asks for approval before installing any external software. It is very fast. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

Sometimes I have to go into settings and enter a password and whitelist newly installed software. Connecting to multiple headphones and having a single line of voice is not too easy to do here. Review collected by and hosted on G2.com.

Verified User in Computer Software
AC
Verified User in Computer Software
Enterprise (> 1000 emp.)
Originally submitted 1/27/2022
"Major new MacOS release for the Apple Desktop and server OS"
5/5
What do you like best about Apple OS X Mountain Lion?

Accompany most of the Software requirements and compatible with the older versions of Apple Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

Requires some hardware requirement changes when updated to the newer version Review collected by and hosted on G2.com.

Nitin  P.
NP
Nitin P.
Software Engineer
Mid-Market (51-1000 emp.)
"Faster and Smoother"
4.5/5
What do you like best about Apple OS X Mountain Lion?

It is a major upgrade over previous release. Airplay mirroring is added. System-wide integration of airplay is added. Application updates automatically install from Mac Store. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

When the x11 app is opened, the users are often redirected to the XQuartz project instead. The option in menu bar displaying battery life based on time is removed. Review collected by and hosted on G2.com.

Stanley C.
SC
Stanley C.
Senior Web Developer
Mid-Market (51-1000 emp.)
"It is very user friendly"
4.5/5
What do you like best about Apple OS X Mountain Lion?

I love the screen time that help to prevent kids playing too much games. Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

There is no way to setup screen time for google chrome browser for the specific website. Review collected by and hosted on G2.com.

Verified User in Computer Software
UC
Verified User in Computer Software
Mid-Market (51-1000 emp.)
"Apple OS Upgrade Very Good"
5/5
What do you like best about Apple OS X Mountain Lion?

I love the new AirPlay Mirroring updates/features with the new OS Review collected by and hosted on G2.com.

What do you dislike about Apple OS X Mountain Lion?

Haven't quite anything to dislike about the new OS just yet 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