Deliver instantaneous status updates whenever user state changes for any number of connected users across related apps.
Detect and update connected user counts and locations.
Show when a user is typing a chat message.
Monitor device battery state, and trigger events when thresholds are met.
Trigger powerful serverless functions to run business logic whenever a user connects or disconnects.
Configure PubNub to callback to your server (or any REST API) whenever a user state changes.
PubNub connected experience APIs run on the PubNub Data Stream Network a globally scaled, battle-tested infrastructure, handling trillions of messages to 330 million devices monthly.
Built-in resilience – message caching and catch up, redundancy, network failover – keeps devices connected with confidence.
15 global points-of-presence guarantee reliable user/device monitoring, no matter how many devices are connected.
Enterprise-grade security, including end-to-end encryption and mission-critical compliance.
Create live-updating lists of online and offline users, like chat contact lists.
Show when a user is typing in a chat application.
Reflect an IoT smart devices connection state.