I am working on an integrated project (android + tizen) and I want to send some data from the gear 2 neo (watch) side to the android side (mobile).

I read the documentation from Samsung Developers about the integrated applications and how to use the SAP service to send data between the android and tizen.

My Question is: Does the gear manager (android side) already have a SAP service to communicate with the default applications installed on the watch and my android application should interact or use it to send and receive data to the tizen application ? Or I should make my own SAP service with my android application and try to interact with the tizen application using it ? 
Thanks in advance.