How does Apinator compare to Ably on features?

Apinator covers the core realtime primitives: WebSocket channels (public, private, presence), server-triggered events, client events, webhooks, and HMAC auth. Ably bundles extras like persistent message history and higher-level pub/sub abstractions. If your use case is event broadcasting and presence, Apinator covers it fully.

Is Apinator cheaper than Ably?

Yes — Ably bills per message, per peak connection, and per channel-minute, so costs scale with traffic. Apinator is free to use: your bill stays at zero whether you send 100,000 or 100,000,000 messages per month.

Does Apinator support pub/sub and presence the same way Ably does?

Yes. Channels are pub/sub under the hood — any publisher can trigger an event on a channel and every subscriber receives it. Presence channels track which members are currently connected, including their metadata, across tabs and devices.

Does Apinator have a free tier?

Apinator is free to use — not a trial, not a limited tier with a paid plan above it. The current free plan includes 500 concurrent connections, 500,000 messages per day (roughly 15 million per month), 100 channels, and presence tracking up to 500 members per channel. Presence, private channels, webhooks, multi-region, and HMAC auth are all included.

What happens during traffic spikes — will my bill jump?

No. There is no per-message overage, no peak-connection charge, no channel-minute billing. Apinator absorbs the spike on its side; your bill stays at zero.

Do you support HMAC token authentication?

Yes. Private channels use HMAC-SHA256 tokens signed by your backend, the same pattern Ably uses for token auth. Your existing auth endpoint usually only needs an import and key swap.

Free to Use

The Free Ably Alternative for Realtime WebSockets

Q: Where is Apinator hosted and which regions are available?

Apinator is fully managed with data planes in the EU and the US. You choose the region per app so connections stay close to your users and payloads stay in the chosen jurisdiction. Contact us if you need another region.

Realtime WebSocket channels, presence, and pub/sub — without enterprise pricing.

Get WebSocket channels, presence, pub/sub, and webhooks without enterprise pricing. Apinator is free to use — no per-message metering, no peak-connection charges, no channel-minute billing. Start free, no credit card.

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No Per-Message Metering

Ably meters every message, every peak connection, and every channel-minute. Apinator does none of that — you send as many events as you need, free.

Free to Use

No credit card, no trial, no paid plan above it. Presence, private channels, webhooks, and HMAC auth are all included, not gated.

Comparable Features

WebSocket channels, presence tracking, HMAC auth, webhook delivery, and multi-region — without Ably's enterprise tier.

Predictable — $0/month

A bill that never changes, because it never starts. No surprise invoices from a viral launch or a traffic spike.

Multi-Region (EU + US)

Pick a region per app so connections stay close to your users and sensitive data stays in its jurisdiction.

HMAC Token Auth

Private channels use HMAC-signed tokens the same way Ably does. Your existing server-side auth pattern maps directly across.

Apinator vs Ably

Feature	Apinator	Ably
Pricing model	Free	Per-message + peak connection + channel-minutes
Free-tier messages / month	15M (500k/day)	6M
Free-tier peak connections	500	200
Pub/sub
Presence
Webhooks (integrations)
HMAC auth
Multi-region		Paid tiers
Predictable monthly bill	Free — $0/mo

Quick Start

Connect, subscribe to a channel, and bind event handlers — similar to Ably, fully managed.

client.js
import { RealtimeClient } from '@apinator/client'

const client = new RealtimeClient('APP_KEY', {
  host: 'wss://rt.apinator.io'
})

// Subscribe to a channel and bind an event
const channel = client.subscribe('notifications')
channel.bind('alert', (data) => {
  showNotification(data.title, data.body)
})

// Publish from your server (Node.js, Python, Go, PHP, ...)
import { ApinatorServer } from '@apinator/server'
const apinator = new ApinatorServer({ appId, key, secret })
await apinator.trigger('notifications', 'alert', { title: 'New order', body: '#1042' })

Frequently Asked Questions

Pusher Alternative Compare Apinator with Pusher Next.js WebSocket Guide 2026 guide: App Router, Pages Router, scaling How WebSockets Scale Scaling WebSocket infrastructure

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Completely free, no credit card required. Deploy in minutes.

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The Free Ably Alternative for Realtime WebSockets

No Per-Message Metering

Free to Use

Comparable Features

Predictable — $0/month

Multi-Region (EU + US)

HMAC Token Auth

Apinator vs Ably

Quick Start

Frequently Asked Questions

Related

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