Apps written in java run only on android, When Java is platform independent

[CoderfromIN]

I was studying in core java that one of the features of java is that it is platform independent.
Now I am working on android development, android apps are developed using core java. Then why is it that those apps are not supported in Windowsphone or ios?

[programmers.io]

No , not all Android application not built on Java . there are lot of other technology which is used to make android apps but these apps are called hybrid apps . Only native android apps are built using Java language.

[cyrusrecharge]

Cyrus Recharge is the recharge API integration provider in India. We provide white lable mobile recharge API, Robotics Recharge API, DTH Recharge API, money transfer API,Utilities Bill Payments API, White Label Applications.