Native mobile apps are a dying breed. If you want to make money, web is the only option and it's not even close. The margins on web-native content makes App Store money look like a joke.

It's a shame, because everyone loves native apps. But from a developer standpoint it is nothing but a waste of billable hours, a ritual where you kiss the ring of your respective platform owner so they can exploit your profitability. Skip Swift and Kotlin altogether, they're both tools used to hold you back as a developer.