I don't know much about the topic, but I think Swift is the more modern and productive language, and is in the process of replacing Objective C on iOS.
Swift... Below are the reasons in my point of view.
Reasons:
Easy to understand and read
If you learn swift, then am pretty sure that you will know 70% Kotlin because Kotlin has similar syntax. Not only Kotlin, we can easily understand Python (If you're new to Python)
More APIs than Objective C
Most importantly, Swift is "Protocol Oriented Language"
Mark
formerly known as M
I don't know much about the topic, but I think Swift is the more modern and productive language, and is in the process of replacing Objective C on iOS.
infoworld.com/article/2920333/mobile-development/…