Data Rescue is described as 'is the best digital data recovery software on the market for recovering files from a problem hard drive or that have been previously deleted' and is an app in the Security & Privacy category. There are more than 100 alternatives to Data Rescue for a variety of platforms, including Windows, Mac, Linux, Android and BSD. The best alternative is TestDisk, which is both free and Open Source. Other great apps like Data Rescue are Recuva (Freemium), Glary Utilities (Freemium), PhotoRec (Free, Open Source) and DiskGenius (Freemium).
DM Disk Editor and Data Recovery (DMDE) is a disk editor which can help you to understand NTFS. Its capable to view your hard disk sector wise, on MFT level, to disect mft attributes and to edit bytes on your hard disk.
DiskWarrior is the safest, most technologically advanced, most powerful utility to eliminate directory damage and recover your files, folders and documents. DiskWarrior is so advanced it can even recover your data from a failing hard drive.
Lazesoft Recovery Suite is a very easy to use ALL-IN-ONE boot disk that repair your crashed Windows, recover data from deleted, formatted, damaged partition, clone or backup disk, reset your forgotten Windows password.
MiniTool Power Data Recovery is all in one data recovery software for both home and business users. It can easily restore lost or mistakenly deleted files from computer hard drive, external hard drive, SSD, USB, SD card, and more.
Foremost is a console program to recover files based on their headers, footers, and internal data structures. This process is commonly referred to as data carving. Foremost can work on image files, such as those generated by dd, Safeback, Encase, etc, or directly on a drive.