You may be an Apple user, or you may be an Android user - unknowingly or knowingly, that makes you a part of the whopping 98% market share these two capture. That being said, you need your app to cater to both of these individually strong and technologically different platforms.
Apple and Android phones differ in many ways. Functionality, Pricing and Design being 3 main differences. What might work for an iOS platform necessarily does not work for an android platform. If your app developer tells you otherwise, you