PostHog vs Clarisights
A detailed comparison to help you choose between PostHog and Clarisights.
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Verdict: PostHog wins
PostHog scores 4.4/5, edging out Clarisights at 4.2/5. Engineering-led product teams that want analytics, session replay, flags and error tracking in one open-source platform and are willing to configure event design and sampling deliberately.
PostHog Product analytics platform with built-in session replay and feature flags | Clarisights Unified analytics platform for marketing performance across channels | |
|---|---|---|
| Rating | 4.4 (1 review) | 4.2 (1 review) |
| Pricing Model | freemium | paid |
| Starting Price | Free tier available | From $500/mo |
| Best For | Engineering-led product teams that want analytics, session replay, flags and error tracking in one open-source platform and are willing to configure event design and sampling deliberately. | Enterprise performance marketing teams spending across many channels and markets who need governed self-service analytics instead of data-team ticket queues. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tieropen sourceapi access | ssoteam featuresapi access |
| Visit PostHog → | Visit Clarisights → |
PostHog
Pros
- + Free tier resets monthly and covers real work: 1M events, 5K recordings, 1M flag requests and 100K exceptions per month, with every feature available and no credit card
- + Funnel-to-replay-to-error-trace in one timeline replaced a three-tool debugging loop I used to run across separate user IDs
- + Self-hosting under MIT keeps event data inside your own infrastructure — the practical answer I recommend for regulated teams
- + No seat-based pricing at all; adding engineers, PMs and analysts to my projects never changed the bill
- + Billing limits are hard caps you set yourself, so a runaway autocapture config stops at your ceiling instead of at a surprise invoice
Cons
- - Session replay, not analytics, became the largest cost line in my test project once traffic passed the 5K free recordings
- - The interface packs nine-plus products into one navigation; new users I onboarded needed a full day before finding the right tool consistently
- - Self-hosting is a genuine ops burden (ClickHouse, Kafka, Postgres) and the self-hosted build lacks SAML SSO and granular permissions
- - Identified events cost nearly 4x anonymous events in the first paid band, so user-identification choices move the bill more than event volume does
- - Past a billing limit PostHog drops data until the next period — cost control comes at the price of visibility
Clarisights
Pros
- + Self-service exploration is real: in my test a non-SQL marketer answered a cross-market affiliate question in about 10 minutes instead of filing a data ticket
- + Central metric definitions (blended CAC, contribution-margin ROAS) mean the same number everywhere, which fixes the four-teams-four-ROAS problem I see in most enterprises
- + Marketing data MCP exposes the governed semantic layer to AI assistants with the user's own ACL — cross-channel metrics arrive as single, trustworthy columns
- + Channel data reconciled cleanly against Meta and Google platform UIs at campaign and ad-set level in my checks
- + G2 record is strong for the category: 4.9/5 from 63 reviews at time of writing, with roughly a month reported time-to-implement
Cons
- - No published pricing and no self-serve purchase — every evaluation goes through a sales process
- - Free trial status is contradictory across review sites (G2 lists one, Capterra lists none), so budget extra clarification time
- - Narrow by design: no general-purpose SQL surface, no warehouse modelling for non-marketing data, purpose-built charting only
- - Custom campaign naming taxonomies still need human cleanup — the platform surfaces inconsistencies but does not fix them
- - Small vendor (about 33 staff) with a concentrated enterprise customer base is a genuine long-term dependency risk
Frequently Asked Questions
Which is better, PostHog or Clarisights?▼
PostHog scores higher at 4.4/5 vs 4.2/5 for Clarisights, making it the better-rated option in our comparison.
What is the difference between PostHog and Clarisights?▼
PostHog: PostHog is an open-source product analytics platform that combines event analytics, session replay, feature flags, A/B testing and error tracking in one tool for product and engineering teams. Clarisights: Clarisights brings paid marketing data from every channel into one reporting platform, so enterprise teams can compare and explore campaign performance in one place.
Is PostHog or Clarisights more affordable?▼
PostHog starts at €0/mo, Clarisights starts at €500/mo. Check the comparison table above for current pricing.
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