If you care about users enjoying your service from their mobile devices, then you should ask yourself: is it enough or necessary to make an amazing responsive website to answer their needs? Probably not. So you go ahead and build a great iOS app version of the website. But is that enough?
Well, not exactly, since there are currently more Android than iOS devices out there in the world, so it’s much more sensible to release an Android app even before creating one for iOS. All this summarizes the main reasons why I decided that I needed to learn how to build an Android app. Plus it forced me work from a different perspective, allowing me to grow my knowledge as a developer so much that I decided to apply what I learned back to our iOS development.