World-Class APIs for In-App Chat

Looking for a Pusher Alternative? PubNub has the APIs you need to create scalable, reliable in-app chat.

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Build (and relax) with PubNub

Develop powerful event-driven applications for real-time communication using easy-to-implement APIs

Boost engagement with audience interaction
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Direct & Group Chats

Manage users and chat rooms for direct and group chats.

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Messages History

Fetch past messages from history and show counts of unread messages.

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Typing Indicators

Send typing on/off events to indicate when someone is typing a message.

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Read & Delivery Receipts

Indicate if the message has been delivered or read by the recipient.

Leverage Real-Time Data
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Push Notifications

Trigger APNs/FCM mobile push notifications when users are out of the app.

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Emoji Reactions

Send emojis or a custom reaction in response to a message.

Operate securely and reliably with built-in scalability

Build apps that scale, no matter how your users, use case, or usage changes.

3 Trillion

Transaction processed per month

< 30ms

Latency worldwide

800 Million

Unique monthly devices

99.999%

Uptime Service Level Agreements

Give users the features they need, regardless of your language or tech stack

PubNub easily integrates with the tools and services you already use.

Enterprise grade security and compliance

Operate securely through TLS and AES256 encryption, and access flexible authorization schema through OAuth and LDAP models. We require no inbound open ports, which helps prevent attacks on your infrastructure. Plus, we support compliance for regulatory environments that include ISO 27001, HIPAA, GDPR, SOC2 Type 2, and CCPA.

GDPR logo: Secure in-app messages with enterprise-grade compliance
HIPAA logo: Secure live message app chat with enterprise-grade compliance
SOC2 logo: Secure chat apps with enterprise-grade compliance
CCPA logo: Enterprise-grade security for chat functionality.

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