smartmontools is described as 'The smartmontools package contains two utility programs (smartctl and smartd) to control and monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (SMART) built into most modern ATA and SCSI harddisks' and is a popular hard disk diagnostic tool in the os & utilities category. There are more than 10 alternatives to smartmontools for a variety of platforms, including Windows, Linux, Mac, MS-DOS and Web-based apps. The best smartmontools alternative is CrystalDiskInfo, which is both free and Open Source. Other great apps like smartmontools are GSmartControl, Hard Disk Sentinel, HD Tune and scrutiny S.M.A.R.T.