I have an android app, it is based on notifications.
Right now it based on GCM, I want to upgrade to FCM.
The app based on Android SDK.
This upgrade from GCM to FCM must not affect the app functionalities at all.
19 freelancers are bidding on average $7/hour for this job
yes,let's clarify the requirement in details also if you want us to share our skill and previous work let us know.. hope to hear you soon.. Thanks & Regards DIVYA