Will Admob work for iOS?

I have developed and built an app for android and is on google play
It has admob ads implemented and I am importing the game over to iOS and I am wondering if I rebuild the game for iOS will the ads work or do I have to implement admob in a different way if im developing for iOS. Does iOS require a different plugin or method for admob or can i get away with the current admob plugins that work on android?

Have a look at https://github.com/unity-plugins/Unity-Admob

both android and ios will works.