This is a big misconception that the iOS app is used by wealthy people and Android by the not-so-wealthy ones. There are some flagship phones by Samsung and Xiaomi that are more expensive than iPhones. Surely, precious stones are not for everyone, but you cannot say for sure as only wealthy people in Dubai with iPhones will buy them.
Your iPhone app development Dubai must be based on how to make a solid app that will work exquisitely. Design and development work hand in hand so do not forget this aspect too.