Ably

Unclaimed Editor reviewed

Realtime messaging infrastructure for chat, notifications, and live updates

Web3 Infrastructure Multiplayer Backend Push Notifications

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4.3(187 across the web)

FreemiumVisit Website

TL;DR - Ably

Ably is a real-time messaging infrastructure provider for apps requiring live updates and sync
It handles pub/sub messaging, presence detection, and message history at global scale
Free tier with 6M messages/month, paid plans from $29/month for higher volumes

Pricing: Free plan available

Best for: Growing teams

4.3/5 across review platforms

Pros & Cons

Pros

Reliable real-time messaging
Global edge network
Good documentation
Many SDKs
Enterprise ready

Cons

Expensive at scale
Per-message pricing
Complex pricing
Learning curve
Vendor lock-in

Ratings Across the Web

4.3(187 reviews)

SourceForge67 reviews

4.3/5

Ratings aggregated from independent review platforms. Learn more

Key Features

Realtime messagingPub/subPresence indicatorsPush notificationsMessage historyDatadog integrationSSO (Enterprise)99.999% uptime SLAsCNAME supportAdvanced security

Pricing Plans

Free

200 concurrent connections
500 messages/second
6M messages/month
Community and email support
No commitment required

Standard

$29

10,000 concurrent channels
10,000 concurrent connections
2,500 messages/second
1-day email support SLA
Uptime SLO included

Pro

$399

50,000 concurrent channels
50,000 concurrent connections
10,000 messages/second
4-hour email support SLA
Datadog lite integration

Enterprise

Unlimited channels/connections/messages
24/7 mission-critical support
99.999% uptime SLAs
Committed use discounts
Full Datadog, CNAME, SSO

Calculate your cost View full pricing

What is Ably?

Editorial review

Ably is a realtime messaging platform for building live, interactive experiences. Features pub/sub messaging, presence, and push notifications with 99.999% uptime SLAs.

LCLouis CorneloupUpdated Apr 30, 2026 · how we evaluateSourceably.com ↗

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Ably FAQ

Is Ably free?

Yes, Ably offers a free tier with 200 concurrent connections, 6M messages/month, and community support. Paid plans start at $29/month.

What are concurrent connections?

Concurrent connections are the number of active client connections at any time. Free includes 200, scaling to unlimited on Enterprise.

Does Ably support SSO?

Yes, SSO is available on Enterprise plans with custom pricing.

What is the uptime SLA?

Enterprise plans offer 99.999% uptime SLAs. Standard and Pro plans include uptime SLOs.

Source: ably.com