Basically a frontend for the company's AI, you click the button for one of several effects, or type in a prompt for the text to image generator, & see what you get. For an image converter you're better off IMHO with XnView (MP), which is both free & available in a portable version. It uses ImageMagick [imagemagick[.]org] so I stuck it in one of my VMs & activated it there -- I don't really trust ImageMagick with its history of security vulnerabilities, so if it was worth keeping I'd keep & use it in the VM, & if not, simply restore the VM. I'll be restoring the VM. ☠️
You *might* have fun with WorkinTool Image Converter if you use something like the cartooning option, but feeding it a scanned photo print that needed work, and trying the photo restore option, the result was... colorful. And NOT in a good way. That said, it felt like a late alpha, early beta, so if you wanted to hang onto it for a while the results *may* improve later in the year.
The app itself installs into 3 folders in Users\ [UserName]\ AppData\ Roaming\. I assumed that was because it wouldn't have the necessary permissions in the more usual Program Files (x86), so I bundled the 3 folders in a new, C:\Image Converter folder in the test VM, and there it ran fine. Installation added 88 new registry entries.