Looks like it depends on what you call "mature". I just downloaded the example app called Travel Tips, and I get unreadable buttons and text because out-of-the

Looks like it depends on what you call "mature". I just downloaded the example app called Travel Tips, and I get unreadable buttons and text because out-of-the-box, it apparently doesn't support dark mode. When I turn it on, I get unequal padding between boxes and no native pickers, just a picker at the bottom of the iPhone. When I run it on iPad, it boxes the content (two black bars left and right. The interface is simply stretched up, without regard for the huge space that the iPad offers. Font sizes do not adjust with iOS settings, even if you restart the app. https://apps.apple.com/us/app/travel-tips/id1336372310 https://apps.apple.com/us/app/travel-tips/id1336372310