Yippieeeee!!! we have an exe-packer for macOSX!!! iPakk!!!!!
Here I show you my little tests… i have tried with the default options so I think that the compression can be improved a little bit more.
ZNME: (full APP package) the original intro size, 80.799 bytes
ZNME_gzexe: (full APP package) compressed with the gzexe compressor (standard), 33.313 bytes
ZNME_gzip: (only binary file) compressed with gzip+stub, 32.104 bytes
ZNME_iPakk: (full APP package) Compressed with iPakk, 31.223 bytes!!
And the binary file size is 30608 bytes!!!