Build game for apple store

Hi, Im making a game for android but I would like to also upload to apple store too. How would I do that? Do I have to have a Macbook or can I just switch the unity platform to IOS? I guess what im trying to say is just build one and run in android and apple with ease. Please let me know and thanks in advance.

You need to build an Xcode project and deploy your app from there to the Apple App Store. A macOS is needed for that.