Tenorshare 4DDiG Data Recovery vs TestDisk

Tenorshare 4DDiG Data Recovery is a Windows and macOS tool for recovering files from memory cards. Tenorshare says it can recover data after deletion, formatting, corruption, crashes or virus attacks. Listed media include SD cards, CF cards, memory sticks and xD cards, and the SD recovery page states support for more than 2,000 file types. The workflow scans a selected card, previews found files and recovers them to a PC or external storage. Recovery options include quick and deep scans, raw file recovery and bootable recovery media; recovered data can also be saved to OneDrive or Google Drive with one click. The free version advertises recovery of up to 2GB on Windows, while its comparison section shows a Mac allowance of up to 500MB. Paid licenses are sold separately for Windows and Mac by month, year or lifetime. Windows and Mac license codes cannot be used across both platforms. Tenorshare says recovery does not overwrite data. Its support information lists free technical support, 24/7 customer service and a 30-day money-back guarantee.

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.