It's kinda annoying how the app store lists all the apps, but then tells you they're not compatible only when you go to install them. I think I prefer the Play store method instead where they just don't appear at all.
most stuff on playstore works on all devices, so thats probably why you never saw one. i only discovered th`t because i had(and still have) a phone thats way older than most people's
if you generally buy newer phones its harder to find unavailable apps