Way back, when I bought my first smartphone, I did some research which included asking the clerk at the store what the differences were between Android and Apple. Her answer was simple "Iphones are easy to use and are made for people who are less tech savvy." Not being computer illiterate, I bought a Galaxy. I see people in the store struggling to unlock their Iphones or to show me pictures of paint can lids and I laugh because these are phones designed for people who have difficulty dealing with technology.
So I sent an email to Los Alamos National Park with a complaint. If you're going to pay to have an app written, you need to be inclusive, not biased or prejudiced against Android or Microsoft. Apple's market share has been slowly dropping over recent years. Their popularity is waning. This is how life goes.