DMDE vs TestDisk

DMDE is a data recovery utility for disks, partitions, memory cards, RAID arrays, disk images, and VHD/VHDX images. It runs on Linux, macOS, and Windows, and lists DOS among its supported operating systems. Recovery features include memory-card and RAID recovery, bootable recovery, and file preview. Paid options vary by license term and operating-system coverage: Express has a one-month option with no listed price and a one-year option at $20 a year, billed as a one-time purchase for a time-limited license. Standard Perpetual is listed at $48 a month, and Professional Perpetual at $95 a month for one OS family or $133 a month for all OS families. Each listed paid plan covers one PC. The maker is DMDE, founded in 2006.

TestDisk is free, open-source software for recovering lost partitions and helping disks boot again when faulty software or human error causes the problem. It can repair partition tables, recover deleted partitions, rebuild or restore FAT and NTFS boot sectors, fix FAT tables, and repair an MFT using its mirror. For file recovery, it can undelete files from FAT, exFAT, NTFS and ext2, or copy files from deleted FAT, exFAT, NTFS and ext2/ext3/ext4 partitions. Listed partition-recovery formats also include APFS, HFS+, XFS and ZFS. It works with hard drives, USB drives, memory cards, disk images, DAS, SAN and Linux RAID devices. The portable application is used by extracting its files; no installer is required. Listed operating systems include Windows, macOS, Linux, DOS, FreeBSD, NetBSD, OpenBSD and SunOS. TestDisk is licensed under GNU GPL v2 or later. The maker says it does not connect to the internet or send information about the user, computer or data. The download page lists version 7.2 dated February 22, 2024, and 7.3-WIP as beta.