---
title: NoLag vs Pusher
description: "NoLag vs Pusher: both add realtime pub/sub to your app. NoLag also gives you AI-agent coordination and ready-made high-level SDKs for chat, notifications, and dashboards."
---

# NoLag vs Pusher

Pusher Channels is a well-established hosted pub/sub service for adding realtime features to web and mobile apps. NoLag is realtime messaging infrastructure that goes further in two directions: ready-made high-level SDKs for common app patterns, and a coordination layer purpose-built for AI agents.

Short version: for classic channels-and-events pub/sub, both work well. If your roadmap includes AI agents, or you would rather not rebuild chat, presence, and dashboards from primitives, NoLag saves you the wiring.

## At a glance

| | NoLag | Pusher Channels |
| --- | --- | --- |
| Core model | Realtime pub/sub over WebSocket | Realtime pub/sub over WebSocket |
| High-level SDKs | Blueprints for chat, notify, feed, dashboards, tracking, sync, and more | Channels and events primitives |
| AI-agent coordination | Built in: dispatch, share state, observe, approve | Not a focus |
| Presence and delivery | Presence, QoS levels | Presence channels |
| SDKs | JavaScript/TypeScript, Go, Python | Client and server libraries across many languages |

## Where NoLag is different

- **Blueprint SDKs.** Chat with presence, typing, and replay; notifications with unread counts; live dashboards; asset tracking. You get a domain-specific API instead of wiring events by hand.
- **A coordination layer for AI agents.** Dispatch work, share state, observe decisions live, and gate actions with human approval, on the same infrastructure as your human-facing features.
- **One platform for humans and agents.** The realtime substrate is shared, so an agentic feature and a chat feature run on the same connection model.

## Where Pusher is a strong fit

- Mature and widely adopted, with a large body of community examples.
- Simple channels-and-events mental model.
- Broad official library coverage across languages.

## When to choose NoLag

- You are building for AI agents, or expect to soon.
- You want higher-level SDKs rather than assembling primitives.
- You want chat, dashboards, or tracking without rebuilding them.

## Try it

Follow the [5-minute quick start](/docs/getting-started) to connect, subscribe, and publish your first message, then explore the [high-level SDKs](/docs/high-level-sdks) and the [AI agents](/docs/agents) guide.