Truthfully, it comes down to whether you wish to deploy an app that is native to iOS or Android Mobile platforms or one that is supposed to execute on either platform, i.e. hybrid applications. We can provide solutions in both native Swift/Obj-C as well as Kotlin/Java for iOS and Android, respectively. Dedicated hybrid app developers for coding using Cross-platform frameworks such as Ionic, PhoneGap, etc. are also available from us.