[Woocommerce] make .mobi files open on an iPhone

I have a .mobi file for sale on my site. When people click on the download link in their iPhones, it does nothing. I’d love it to open the Kindle app.

I know this is a weird thing that one can’t exactly control. But I’m wondering if there’s something with the MIME types I can do.

Right now I have this function setting the MIME types for .mobi and .epub files.

function addUploadMimes($mimes) {
    $mimes = array_merge($mimes, array(
		'epub' => 'application/epub+zip',
        'mobi' => 'application/x-mobipocket-ebook'
    ));
    return $mimes;
}