OS X El Capitan is the twelfth major release of OS X, Apple Inc.'s desktop and server operating system for Macintosh computers.
Best macOS Sierra Alternatives ranked by AI · updated May 2025
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The successor to OS X El Capitan, macOS Sierra brings new features and improvements to Mac computers.
Price: Free
Top 3 macOS Sierra alternatives
macOS High Sierra focuses on core technologies and introduces refinements to the features and apps Mac users enjoy.
Pros
- Apple File System
- Metal 2 graphics technology
Cons
- Potential security vulnerabilities
- Some users experience bugs and glitches
macOS Mojave introduces a new Dark Mode, Stacks, and dynamic desktop, along with updates to core apps.
Pros
- Dark Mode
- Desktop Stacks for organization
Cons
- Possible compatibility issues with older hardware
- Some users report performance hits
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