Differences between iPhone and Android development?

Hello all, I am moving towards the end stages of developing a game I have been working on for Android. This will be my first mobile game release and I was wondering what build differences exsisted between Android and iPhone when it comes to releasing a game. I have been building it with the Android build settings in unity but a lot of the stuff I'm doing makes it seem like it would transfer over fairly easily as long as I changed the build settings to iPhone. I don't have an iPhone to test the game on it but I may be able to borrow one. What kind of things should I be looking for specifically?