PubNub utilizes a Publish/Subscribe model for real-time data streaming and device signaling which allows for establishing and maintaining a persistent socket connection to any device and push data to global audiences. PubNub also supports several other iOS SDKs including: Subscribe Only, Hello World, Calls Without Blocks, and Apple Push Notifications.
Action camera maker GoPro has shuttered its developer program. A statement posted on the developer program website reads, "GoPro has discontinued the Developer Program. We are grateful to the GoPro Developer Community for your interest in the program." The program was launched in April 2016.