Hello!
So I don't typically upload these to the itch.io app, it's usually just to the website itself. I'm not sure what the difference is but they are .zip files here and I don't really have any way of checking whether the app is different, I just build the files the way Ren'py usually does.
I can try to upload the Mac version to the app when I wake up but I don't know if there's anything specific I need to do on there.
I'll reply again after I've done so that way you know when to try again!
Be safe~
Lavan