Active@ Hard Disk Monitor vs CrystalDiskInfo

Active@ Hard Disk Monitor checks disk health on Windows with S.M.A.R.T. monitoring and surface scans for bad sectors. It can monitor disk performance and state in the background, including when launched at Windows startup. Temperature tools record history, draw graphs, and show the current disk temperature in the system tray. When critical conditions appear, the software can send email or popup notifications. It also creates event logs and S.M.A.R.T. reports containing disk activity information over time. The Pro version adds remote monitoring: it can display disk information and receive notifications from remote computers on a local or global network. Pro also provides temperature graphs across a day, week, month, or specified period. The Freeware plan costs nothing and is for personal use only. Professional is intended for business purposes and can monitor up to 3 PCs remotely; its general license covers personal and commercial use, while its enterprise license is for company offices and branches worldwide. The site lists version 26.0.1, dated February 1, 2026, as a maintenance release.

CrystalDiskInfo has no write-up on Specifiction yet; its figures are above.