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APIs · head to head

Ably vs Algolia

Ably logo

Ably

APIs

Realtime data delivery platform for pub/sub messaging at scale

From
Free
Rated
-
Full reviewWebsite
Algolia logo

Algolia

E-Commerce

The best Search and Discovery Platform for your business

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.; Algolia the free tier allows 10,000 search requests and 50,000 records a month
  • They diverge on capability: Ably covers Pub/sub messaging, Algolia covers Instant search.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Ably and Algolia actually diverge.

Attributes where Ably and Algolia differ
AttributeAblyAlgolia
Pricing modelfreemiumUnknown
Platformsweb, ios, android, apiWeb
CategoryAPIsE-Commerce
FoundedUnknown2012

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 Algolia

  • Instant search
  • Typo tolerance
  • Faceted search
  • Geo search
  • AI recommendations
  • Analytics
  • A/B testing
  • Multi-language

What people use each for

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

Ably

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

Algolia

  • Site searchnot Ably
  • Mobile app searchnot Ably
  • Voice searchnot Ably
  • Product discoverynot Ably
  • Federated searchnot 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.

Algolia

  • The free tier allows 10,000 search requests and 50,000 records a month
  • Billing is metered on two axes at once, search requests and indexed records, so a large catalogue with light traffic still costs
  • AI features require Grow Plus, where additional searches cost $1.75 per 1,000 against $0.50 on Grow
  • The Elevate tier requires an annual contract and is quote-only

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

Algolia

Free
  • BuildFree
    • Free tier
  • Grow$0.5/month minimum
    • 10k searches and 100k records included
    • Usage-based overage pricing
  • Grow Plus$undefined/mo
    • AI features
    • 10k searches per month
    • $1.75 per 1k search overages
  • Elevate$50000/year
    • Enterprise tier
    • Annual commitment

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 Algolia if

  • You need instant search.
  • You want to start without paying.
  • You also want typo tolerance.
Algolia review

Questions people ask

Is Ably or Algolia better?
Neither clearly leads. Ably starts at Free and Algolia at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ably or Algolia?
Ably starts at Free and Algolia at Free.
Does Ably or Algolia run on more platforms?
Ably runs on web, ios, android, api. Algolia runs on Web.
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 Algolia is typically brought in for.
What can Ably do that Algolia cannot?
Ably covers Pub/sub messaging, Presence, Message persistence, Multi-protocol support. Algolia covers Instant search, Typo tolerance, Faceted search, Geo search.

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
Algolia: What are Algolia's pricing tiers?

Algolia offers a free Build plan, Grow starts at $0.50/month with usage-based pricing, Grow Plus adds AI features at higher cost, and Enterprise (Elevate) requires annual commitments starting around $50k/year.

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
Algolia: Does Algolia include AI-powered search features?

Yes. Algolia's AI mode enables natural language search queries where customers can type conversational questions and AI recognizes intent. Premium plans include AI Synonyms, AI Ranking, and Advanced Personalization.

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
Algolia: What platforms and services integrate with Algolia?

Algolia integrates with Shopify, Contentful, WordPress, Adobe Commerce/Magento, BigCommerce, commercetools, and Salesforce. Direct payment integrations like Stripe are limited.

Source
Algolia: How many customers does Algolia serve?

Algolia serves more than 18,000 customers across 150+ countries, processing over 50 billion monthly search queries.

Source
Algolia: What are Algolia's rate limiting policies?

Algolia has a limit of 10,000 indexing operations per unit. Exceeding limits returns HTTP 429 errors. Backend implementations must handle their own rate limiting as Algolia cannot provide per-user rate limiting.

Source
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