PubNub is a Pub/Sub service that allows you to send data between devices in real-time. It is ideal for developers who are creating chat apps, IoT device signaling, real-time GPS location tracking, multiplayer online games, and other applications. PubNub SDKs are available for every programming language, allowing your server, web browser, mobile phone, or smart device to start using PubNub right away. After free signup, you get live API keys instantly.
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