Download of System Optimizer X 4.7 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. System Optimizer X for Mac lies within System Tools, more precisely System Optimization.
From the developer:
System Optimizer X is a powerful system maintenance and optimization tool, with a uniquely simple design. System Optimizer X uses built-in system tools, and applies proven system-level tweaks and modifications to improve your system, internet, and disk speed and stability.
You may want to check out more software for Mac, such as TinkerTool System, System-i DBcompare Lite or phone.systems, which might be similar to System Optimizer X.
System Optimization
System Optimization