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E-Commerce · head to head

Algolia vs PostHog

Algolia logo

Algolia

E-Commerce

The best Search and Discovery Platform for your business

From
Free
Rated
-
Full reviewWebsite
PostHog logo

PostHog

Technology

The single platform to analyze, test, observe, and deploy new features

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Algolia the free tier allows 10,000 search requests and 50,000 records a month; PostHog the free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
  • They diverge on capability: Algolia covers Instant search, PostHog covers Product analytics.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Algolia and PostHog actually diverge.

Attributes where Algolia and PostHog differ
AttributeAlgoliaPostHog
Pricing modelUnknownusage-based
PlatformsWebWeb, Ios, Android, Api
CategoryE-CommerceTechnology
Founded20122020

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 Algolia

  • Instant search
  • Typo tolerance
  • Faceted search
  • Geo search
  • AI recommendations
  • Analytics
  • Multi-language
  • React

Only in PostHog

  • Product analytics
  • Session recording
  • Feature flags
  • Heatmaps
  • SQL access
  • Data warehouse
  • Apps platform
  • Slack

Both cover

  • A/B testing
  • SOC2
  • GDPR
  • HIPAA

What people use each for

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

Algolia

  • Site searchnot PostHog
  • Mobile app searchnot PostHog
  • Voice searchnot PostHog
  • Product discoverynot PostHog
  • Federated searchnot PostHog

PostHog

  • Product analyticsnot Algolia
  • Feature experimentationnot Algolia
  • User behavior trackingnot Algolia
  • A/B testingnot Algolia
  • Debug production issuesnot Algolia

Where each one falls short

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

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

PostHog

  • The free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
  • Accounts without a card on file are limited to 1 project; adding one raises it to 6
  • Data retention is 1 year until a card is added, which extends it to 7 years
  • Support is community-only until the account is on a paid plan
  • Error tracking is capped at 100K exceptions and surveys at 1500 responses per month on the free tier

Pricing, plan by plan

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

PostHog

Free
  • FreeFree
    • 1M events/month
    • 5K sessions/month
    • Unlimited users
  • Paid$undefined/month
    • $0.00031/event
    • $0.005/session
    • Advanced permissions
  • Enterprise$undefined/month
    • SAML SSO
    • Advanced security
    • Dedicated support

Which should you pick?

Choose Algolia if

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

Choose PostHog if

  • You need product analytics.
  • You want to start without paying.
  • You work on Web, Ios, Android, Api.
  • You also want session recording.
PostHog review

Questions people ask

Is Algolia or PostHog better?
Neither clearly leads. Algolia starts at Free and PostHog at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Algolia or PostHog?
Algolia starts at Free and PostHog at Free.
Does Algolia or PostHog run on more platforms?
Algolia runs on Web. PostHog runs on Web, Ios, Android, Api.
Can I use Algolia for free?
Both have a free tier, so you can try either at no cost before committing.
What is Algolia best used for?
Algolia is most often used for site search, mobile app search, voice search, product discovery. Of those, site search and mobile app search are not what PostHog is typically brought in for.
What can Algolia do that PostHog cannot?
Algolia covers Instant search, Typo tolerance, Faceted search, Geo search. PostHog covers Product analytics, Session recording, Feature flags, Heatmaps. Both handle A/B testing, SOC2, GDPR, HIPAA.

Answered from the vendors’ own pages

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
PostHog: What does PostHog's free tier include per month?

PostHog free tier includes: 1M analytics events, 5K session replays, 1M feature flag requests, 100K error tracking exceptions, 1,500 survey responses, 1M data warehouse rows, 10K data pipeline events, 100K AI observability events, 500 PostHog AI credits, 10K workflow messages, and 10GB log ingestion. Source: https://posthog.com/pricing

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
PostHog: How much data retention does PostHog provide on paid plans?

PostHog free tier provides 1-year data retention. Pay-as-you-go plans offer 7-year data retention across all projects, enabling longer historical analysis. Source: https://posthog.com/pricing

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
PostHog: What percentage of PostHog users stay on the free tier?

PostHog states that 97% of companies use PostHog for free, indicating extensive free tier adoption. However, specific per-unit pricing rates for overages on paid plans are not published. Source: https://posthog.com/pricing

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
PostHog: When does PostHog provide priority support on paid plans?

PostHog provides email or Slack support for accounts exceeding $2,000/month on pay-as-you-go plans. Specific response times and support SLAs are not detailed on their pricing page. Source: https://posthog.com/pricing

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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