You can run grpc over binder: https://github.com/grpc/grpc-java/blob/master/binder/src/main/java/io/grpc/binder/AndroidComponentAddress.java https://github.com

You can run grpc over binder: https://github.com/grpc/grpc-java/blob/master/binder/src/main/java/io/grpc/binder/AndroidComponentAddress.java https://github.com/grpc/grpc-java/blob/master/binder/src/mai... The overhead is low, and you get best practices like oneway calls and avoiding the transaction limit for free. It also comes with built in security policies for servers and clients.