PubNub vs. RudderStack

PubNub is a real-time platform for developers who build in-app chat and live features. The Chat SDK includes typing indicators, presence, message history, read receipts, reactions, and threads. PubNub supports unlimited subscribers per channel. PubNub assigns each message a server-side timetoken. Messages on a channel form one ordered sequence. End-to-end delivery latency is sub-100ms. DAZN uses PubNub to power chat and Watch Party experiences for 10 million users. PubNub charges by Monthly Active Users or transactions, depending on the plan.

RudderStack’s agentic CDP enables you to collect, unify, and activate customer data from an integrated platform that wraps around your data warehouse as the system of record. Our infrastructure is battle tested with proven reliability at peak loads up to 1M events/second and 99.95% uptime. Proactive governance tools enable you to enforce data quality and compliance in pipeline, so downstream systems always get activation ready data. And our AI capabilities transform both how you work with customer data and what you can do with it.