Hi Voyager !
Android & IOS ( iPhone Operating System ) Apps are not compatible so you couldn't run an iPhone app on your Android device.
There are plenty of apps available for most mobile platforms. Most of these also have a free version. The free versions are usually limited in functionality and include some type of advertisement as well.
Good luck with your Android !
I am personally an iPhone/iPad man myself and love the aviation software I run on it.
Let me know if there is anything else !!!