There is already a portable version, but I needed to move some stuff around to get it to work right. There are 4 different ways(parts) of the app you can make mosaics with.
Make a Photographic Mosaic from tile collections(images on a PC)
AndreaMosaic 3.32.17 Beta Portable Version
I guess it's freeware... Might be open source. One would have to ask Andrea.
You are not alowed to make it portable.
It is some sort of freeware but with additional limitations.
Maybe you want to tell the author of the software about portableapps.com.
Maybe she wants do develop the software portable by herself in future ...
People, please do your homework before requesting a portable app!
This includes checking the licensing.
See also: https://portableapps.com/node/4507
That's where the launchers that download and install the app itself come in I believe...
Release Team Member
I'll do it.