iPhone vs Android 2020
Java applies to Android-based apps when building. It requires a lot of code to be written. A brand new language Swift was designed to develop iOS based apps.
The coding on swift is much faster as compared to java. It is required much more time for java engineers to code as compared to swift ones with iphone text messages
Swift first appeared in 2014 and apps are built faster due to writing less code which make a difference between android and iOS and iPhone version vs android 2020.
There is a potential alternative to java-Kotlin codon language that is completely interoperable with java. It was designed as java language enhancement: intuitive, easy to read.
Moreover, now kotlin is considered to be the main language to build an Android-based powered application.