As Recuva only serves for Windows version while not support recovering data on Mac, if you want to retrieve deleted files from Mac OS X, you need Bitwar Data Recovery which is the best alternative for Recuva Professional software.
What is Recuva?
Recuva is a free data recovery tool that runs on Windows-based computers to help users restore deleted data on Windows, it supports recovering data on digital camera, memory card, USB flash drive, external hard drive, and so on.
Recuva is one of the most popular data recovery software but it is ONLY available for Windows operating system. Be aware that there is no Mac version for Recuva yet.
Although Mac users are not as fortunate as PC users to recover data with Recuva, it doesn’t mean you can’t recover lost files on Mac. As a Recuva for Mac alternative, Bitwar Data Recovery for Mac is excellent and useful. It supports recovering data caused by accidental deletion, formatting, hard drive corruption, virus attack, system crash under different situations. And it can effectively, safely and completely get back lost or deleted data from any storage device like hard drive, SSD, memory card, USB flash drive, digital camera, etc.
How to recover lost files with Bitwar Data Recovery for Mac
Download and install Bitwar Data Recovery for Mac on your Mac OS X, and then launch it. It is compatible with OS X 10.11 and later.
Tips: For the latest macOS 10.13 (High Sierra) system requirements, Mac users are not allowed access to system disk from apps. If you want to recover data from the system disk, please disable the system feature “System Integrity Protection (SIP),” see the guide on How to Disable System Integrity Protection (SIP) in macOS High Sierra (macOS 10.13)?
Step 1: Select the Partition or Device
Launch the program and select the partition/devices where your data lost and then click “Next.” If you want to recover data from an external drive, please connected it to your mac on this step.
Step 2: Select the Scan Mode
Select the scan mode based on the exact data loss reasons. Then click “Next.” There are three scan modes for you to choose:

Step3: Select the file type
Choose the file types that you want and click “Next.” You can select all kinds if you do not know which type of files you want.
Step 4: Preview, recover and save files

Tips: Please DO NOT save the data into the Partition or device where you deleted it from.
Let’s try it now!
Please refer here for more about Mac data recovery