[flixic]

The app literally says "Welcome to FractalCrypt!" when you open it. Not only revealing the encryption format name, but clearly hinting to how it works.

I'd much prefer an encryption format that hides itself in a well-known one layer encryption (like encrypted zip).

[KingOfCoders]

I agree, something like VeraCrypt where the partition has a certain size, with or without hidden data.

But state level actors might nevertheless have methods to find out, that you write 120gb of data compressed into a 100gb file, there needs to be something hidden because otherwise you would get in 122gb - something like that.

Or single stepping VeraCrypt machine code execution (you see I have no clue).