In which mobile platforms the “push token” is not permanent?

Question

We all know that in order to use the push notifications functionality in any mobile platform we need a unique identifier called \"push token\".

The developer needs someh

Answer 1

In android if you are using Google cloud messaging it will change

Note that Google may periodically refresh the registration ID, so you should design your Android application with the understanding that the com.google.android.c2dm.intent.REGISTRATION intent may be called multiple times.

A full description about GCM can be found here