M3 Undelete 5.6 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. This Mac application is a product of M3 Data Recovery Software. M3 Undelete for Mac lies within System Tools, more precisely Backup & Restore.
From the developer:
M3 Undelete is a professional Mac data recovery program for Mac users. The tool provides a safe solution to recover lost files (including photos, videos, documents, e-mails, and other file types) from any Mac-based hard drive, including external hard drive, iPod, USB flash drive, SD card, digital camera, CF card XD Card, MMC card, memory stick, memory card, etc.
You may want to check out more Mac applications, such as Renee Undeleter, Mitk 3M3 or M3Unify, which might be related to M3 Undelete.
Backup & Restore
HDD Management