There are a few actions that you just have to pick up. Most apps look and perform the same (though Google has gone rogue and revamped its iOS apps to match its own Material Design). And Apple enforces its design through the App Store, which creates a pretty seamless experience for the user.
Instead iOS now is the king of a clean, minimalist layout. Gone was the excessive skeuomorphism of the past, made infamous by the leather stitching in the Notes app. When iOS 7 launched in 2013, Apple revamped the look and feel of to go with what is known as flat design. After some tweaks and iterations both iOS and Android are pretty settled into their differing design aesthetics.
