Okay - I'm just testing it now on my iPhone. When you click on the zip (Mr Robot 2.03) it will open a new tab. Leave the new tab open. At the top there will be nothing in the address bar, however, there will be a blue bar. You need to let the blue bar load. (You can swap to another tab and leave that one in the background). Once it finishes loading it will have downloaded the zip and you can choose to open it in file manager / whatever suitable app you have available.
-- Something to note, I believe this zip is quite large as it's only half way through downloading on my phone. I will make a note to split it into two zips ASAP so it's easier to download.