: The software primarily supports internal SSDs. Disks connected via USB or FireWire are generally unsupported.

is a specialized utility for macOS designed to monitor the health and remaining lifespan of internal Solid State Drives (SSDs). Released on January 29, 2021, this specific version introduced critical updates for the transition to Apple's modern hardware. Key Features of Version 1.5.7

: It calculates a health percentage (100% to 0%) by monitoring up to seven specific lifetime attributes, such as reallocated sector counts and wear leveling.

: Requires macOS 10.10 or later for this specific build. Core Functionality

: SSDs connected via eSATA or Thunderbolt may work if the external enclosure is S.M.A.R.T.-compatible.

: Improved health monitoring for WDC and Toshiba SSD models.

: It only works with drives that export useful health and lifetime attributes. Some Apple-original SSDs and specific models from brands like Micron, Crucial, and OCZ are known to be incompatible due to how they report data.

: Introduced native compatibility for Apple Silicon (M1/ARM chips).