Apple OS X Mountain Lion
Operating systems
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
Take the quiz to check if Apple OS X Mountain Lion and its alternatives fit your requirements.
Completely free
Free Trial unavailable
Free version
Small
Medium
Large
- Arts, entertainment, and recreation
- Media and communications
- Education and training
What is Apple OS X Mountain Lion
OS X Mountain Lion (version 10.8) is a desktop operating system for Apple Mac computers. It provides the core platform for running applications, managing hardware resources, and integrating system services such as networking, security, and user management. It targets individuals and organizations standardized on Apple hardware and the Apple software ecosystem. It is a legacy release that is no longer the current macOS version and is primarily relevant for compatibility with older Mac models and applications.
Tight Apple ecosystem integration
Mountain Lion integrates closely with Apple services and applications available at the time, including iCloud-based synchronization and Apple’s built-in productivity and communication apps. This can simplify account management and data continuity across Apple devices compared with more heterogeneous environments. It also aligns with Apple’s hardware-software co-design approach, which reduces variability across supported Mac models.
Mature Unix-based foundation
OS X is built on a Unix-derived architecture, which supports common POSIX tooling and a familiar environment for many developers and IT teams. This foundation enables stable process, memory, and permission models typical of Unix-like systems. It can support scripting and automation workflows used in software development and technical operations.
Consistent Mac desktop experience
Mountain Lion provides a consistent user interface and system behavior across supported Macs, which helps standardize end-user training and support. Apple controls both the operating system and the hardware platform, which can reduce driver fragmentation compared with some PC ecosystems. For organizations that deploy Macs, this can simplify baseline imaging and configuration practices for that era.
End-of-life and unsupported
Mountain Lion is a legacy operating system and is no longer supported with security updates by Apple. Running an unsupported OS increases exposure to unpatched vulnerabilities and can create compliance issues. Many modern security tools and enterprise management capabilities assume newer macOS versions.
Limited modern app compatibility
Many current desktop applications, browsers, and developer tools require newer macOS releases and will not install or run reliably on 10.8. This limits access to current versions of productivity suites, security agents, and collaboration tools. It can also constrain integration with modern identity, device management, and encryption standards.
Restricted to Apple hardware
Mountain Lion runs only on supported Apple Mac hardware, which limits deployment flexibility compared with operating systems that support a broad range of OEM devices. Hardware eligibility is also constrained by Apple’s support matrix for that release. This can increase refresh pressure when older Macs cannot upgrade to newer macOS versions required by applications or security policies.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| One-time installer download | Free (no charge) | Installer available for download from Apple Support ("Mac OS X Mountain Lion Installer"). Intended for older Macs; distributed as a .dmg/.pkg installer. Historical note: OS X Mountain Lion was originally sold for $19.99 (US) at release in July 2012 (Apple Newsroom). |
Seller details
Apple Inc.
Cupertino, California, USA
1976
Public
https://www.apple.com/
https://x.com/Apple
https://www.linkedin.com/company/apple/
