ApplePiBaker 2.2.3 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac app was originally created by Tweaking4all. We recommend checking the downloaded files with any free antivirus. The software lies within System Tools, more precisely Backup & Restore.
From the developer:
ApplePi-Baker is designed to help you backup and restore SD cards and USB drives. It produces IMG or ISO files, but it can also generate ZIP, 7Zip, or GZip compressed IMG archives with the same ease. In addition, the tool allows you to flash the image to the removable disks. Furthermore, the program can be used to create a disk suitable for Raspberry Pi’s NOOBS.
You may want to check out more software for Mac, such as ApplePi-Baker, which might be related to ApplePiBaker.