StableBit Scanner is described as 'state of the art disk health monitoring tool' and is an app in the System & Hardware category. There are more than 25 alternatives to StableBit Scanner for a variety of platforms, including Windows, Linux, Mac, BSD and PortableApps.com. The best alternative is GParted, which is both free and Open Source. Other great apps like StableBit Scanner are CrystalDiskInfo (Free, Open Source), CrystalDiskMark (Free, Open Source), GSmartControl (Free, Open Source) and HD Tune (Freemium).
SMARTReporter is an application that can warn you of some hard disk drive failures before they actually happen! It does so by periodically polling the built-in S.M.A.R.T. status of your hard disk drives as well as performing other checks for "I/O errors" or R.A.I.
Active SMART - is hard-drive deagnostic and file usage information tool. It uses the S.M.A.R.T. technology to track the status of the computer hard disks to timely detect and anticipate any problems, occurring with the hard drive, before the danger of the data loss appears.
Diskscan is intended to provide the information needed to decide if a disk is good or not, be it an HDD or an SSD it is likely to be holding important data and if you have a suspicion that it is failing it is also important to know how bad is it down the road.