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APIs · head to head

Ably vs Liveblocks

Ably logo

Ably

APIs

Realtime data delivery platform for pub/sub messaging at scale

From
Free
Rated
-
Full reviewWebsite
Liveblocks logo

Liveblocks

APIs

Realtime collaboration infrastructure for building multiplayer features

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Ably standard and Pro plans layer usage-based charges for messages, connection minutes, and data transfer on top of the base subscription, adding cost complexity.; Liveblocks on the Free plan, each metered feature has a hard cap and simply pauses when exceeded rather than allowing overage.
  • They diverge on capability: Ably covers Pub/sub messaging, Liveblocks covers Realtime presence and cursors.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Ably and Liveblocks actually diverge.

Attributes where Ably and Liveblocks differ
AttributeAblyLiveblocks
Platformsweb, ios, android, apiweb, api

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated), category (APIs).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Ably

  • Pub/sub messaging
  • Presence
  • Message persistence
  • Multi-protocol support
  • Encryption
  • Datadog integration

Only in Liveblocks

  • Realtime presence and cursors
  • Comments
  • Version history
  • Custom notifications
  • SSO and SOC 2
  • Management API

What people use each for

The jobs each tool is most often brought in to do.

Ably

  • Building realtime chat or collaborative appsnot Liveblocks
  • Delivering live data feeds like stock prices or sports scoresnot Liveblocks
  • Broadcasting notifications to many concurrent clientsnot Liveblocks
  • Running mission-critical realtime infrastructure with high uptime SLAsnot Liveblocks

Liveblocks

  • Adding live cursors and presence to a collaborative editornot Ably
  • Building threaded comments on documents or designsnot Ably
  • Sending realtime notifications tied to collaborative actionsnot Ably
  • Restoring previous versions of collaborative contentnot Ably

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Ably

  • Standard and Pro plans layer usage-based charges for messages, connection minutes, and data transfer on top of the base subscription, adding cost complexity.
  • The jump from Standard ($29/month) to Pro ($399/month) is steep for teams needing more than 10k connections but not full Pro capacity.
  • 24/7 mission-critical support and 99.999% uptime SLAs are reserved for the custom-priced Enterprise tier.

Liveblocks

  • On the Free plan, each metered feature has a hard cap and simply pauses when exceeded rather than allowing overage.
  • The jump from Pro ($30/month) to Team (starting at $600/month) is steep for teams that outgrow Pro but don't need full Team scale.
  • Multi-region hosting and SCIM provisioning are Enterprise-only and require custom pricing.

Pricing, plan by plan

Ably

Free
  • FreeFree
    • 200 concurrent connections
    • 500 messages/second
    • 6M messages/month
  • Standard$29/month
    • 10k concurrent channels
    • 10k concurrent connections
    • 2.5k messages/second
  • Pro$399/month
    • 50k concurrent channels
    • 50k concurrent connections
    • 10k messages/second

Liveblocks

Free
  • FreeFree
    • 10 projects
    • 3 dashboard seats
    • 10 simultaneous connections per room
  • Pro$30/month
    • $30 monthly credits
    • Removes Liveblocks branding
    • 3 dashboard seats
  • Team$600/month
    • SSO and SOC 2
    • 10 dashboard seats
    • 50 connections/room

Which should you pick?

Choose Ably if

  • You need pub/sub messaging.
  • You want to start without paying.
  • You work on web, ios, android, api.
  • You also want presence.
Ably review

Choose Liveblocks if

  • You need realtime presence and cursors.
  • You want to start without paying.
  • You work on web, api.
  • You also want comments.
Liveblocks review

Questions people ask

Is Ably or Liveblocks better?
Neither clearly leads. Ably starts at Free and Liveblocks at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ably or Liveblocks?
Ably starts at Free and Liveblocks at Free.
Does Ably or Liveblocks run on more platforms?
Ably runs on web, ios, android, api. Liveblocks runs on web, api.
Can I use Ably for free?
Both have a free tier, so you can try either at no cost before committing.
What is Ably best used for?
Ably is most often used for building realtime chat or collaborative apps, delivering live data feeds like stock prices or sports scores, broadcasting notifications to many concurrent clients, running mission-critical realtime infrastructure with high uptime slas. Of those, building realtime chat or collaborative apps and delivering live data feeds like stock prices or sports scores are not what Liveblocks is typically brought in for.
What can Ably do that Liveblocks cannot?
Ably covers Pub/sub messaging, Presence, Message persistence, Multi-protocol support. Liveblocks covers Realtime presence and cursors, Comments, Version history, Custom notifications.

Answered from the vendors’ own pages

Ably: What does Ably cost?

Ably offers a free plan with 200 concurrent connections, a Standard plan at $29/month plus usage, a Pro plan at $399/month plus usage, and custom Enterprise pricing with unlimited channels and connections.

Source
Liveblocks: What does Liveblocks cost?

Liveblocks offers a Free plan with hard usage caps, a Pro plan at $30/month ($25/month billed annually) including $30 in monthly credits, a Team plan from $600/month, and custom Enterprise pricing.

Source
Ably: Is there a free plan, and what are its limits?

Yes, the free plan includes 200 concurrent connections, 500 messages per second, and 6 million messages per month with community and best-effort email support.

Source
Liveblocks: Is there a free plan, and what are its limits?

Yes, the Free plan includes 10 projects, 3 dashboard seats, 10 simultaneous connections per room, 3,000 collaboration minutes, 200 comments, and 1GB of realtime data storage, with features pausing once a cap is hit.

Source
Ably: How is usage metered?

Beyond plan limits, Ably charges usage-based rates of $2.50 per million messages, $1.00 per million connection minutes, $1.00 per million channel minutes, and $0.25 per GiB of data transfer, with volume discounts available.

Source
Liveblocks: How is usage metered?

Paid plans include monthly credits covering collaboration minutes, comments, and storage; usage beyond the credit is billed at metered rates such as $0.002 per collaboration minute and $0.01 per comment, with credits resetting each billing cycle without rollover.

Source
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