Pub/Sub - PubNub’s Publish and Subscribe APIs make it easy to deliver high volume, in-app messages 1:1 or to an unlimited number of channels anywhere around the globe in less than 100ms.
Unlimited Channels - Combine up to 10,000 individual channels into a single connection so user/device can subscribe to unique combinations of message streams.
Message Reactions - Add delivery acknowledgements, read receipts, and end user reactions to make end messages more authentic.
Message Persistence - We save history, so devices can retrieve messages that were published with a simple API for accessing historical data - even when the device was offline.
Message Filters - Filter channels based on message metadata, so each device receives only the messages they need.
Private and group chats - To deliver chat messages, alerts, in-app chat, and chatbots for web, iOS, and Android chat.