This is a big one for us. My wife and I both really like the HK interface and the control center on iPhone linking directly to HK is so very convenient. Plus CarPlay is nice. I know there's Android Auto, but I don't think they have an equivalent in Android Auto for HK garage door access, which is relatively easy to add with a really inexpentive module. However, I'm ignorant on that point.
I'm not one of those "I won't drink the koolaid" kind of guys. I love the Apple Koolaid. Gimme, gimme. Their products are expensive (although many TOL Android phones are not far behind in price) and maintenance, viruses, and OS level malware are just not a thing I've ever had to worry about in roughly 23 years on their computers and since my first iPhone, which was 2012.