Clerion vs. PostHog
PostHog is for the product. Clerion is for the website, read for you.
Three things PostHog does not do
Clerion writes the reading; PostHog waits to be asked
No event plan
No cookies, no banner
Side by side
Price
Clerion $14/mo (Solo, 25k pageviews) up to $99/mo (Business, 1M pageviews)
PostHog Usage-based per product after a free allowance; no fixed subscription
Free tier
Clerion No, 14-day trial (card required, $0 for 14 days)
PostHog Yes, 1M events and 5,000 session recordings a month, no card
Cookies
Clerion None
PostHog Cookies by default, a cookieless mode is available
Consent banner
Clerion Not needed
PostHog Needed by default
Open source
Clerion No
PostHog Yes
Hosting
Clerion EU infrastructure
PostHog US or EU cloud, or self-hosted
Best for
Clerion Founders and small teams with no analyst, who want the interpretation done for them rather than another dashboard to read.
PostHog Teams building a product who want analytics, replay, flags and experiments in one place and will instrument it.
Watch out for
Clerion It is built for site-wide traffic and growth questions. If you need programmatic event pipelines for a complex product funnel, a dedicated product-analytics tool fits better.
PostHog It is a product-analytics platform first. The website view is one product among many, and the value comes from the events you define and maintain.
Read from each vendor’s own pages, October 2026.
Feature by feature
Reads the data for you
Clerion A written briefing every day
PostHog An assistant you ask
AI assistants as a channel
Clerion A channel of their own, plus the apps and tagged links
PostHog Listed among referrers
Revenue by source
Clerion Each payment credited to the source that brought the visitor
PostHog Revenue analytics, with revenue events
AI-readiness of your pages
Clerion Every page scored, the site as a graph
PostHog Not built in
Asks leaving visitors why
Clerion Yes, five answers, once per visitor
PostHog Surveys, as a separate product
Rage clicks
Clerion Yes, by page and element
PostHog Within session replay
JavaScript errors
Clerion Yes, grouped and explained
PostHog Yes, error tracking
Deploy markers
Clerion Yes, from one call in CI
PostHog Annotations by hand
Session replay
Clerion Not built in
PostHog Yes
Product analytics
Clerion Funnels and conversion, no cohorts or flags
PostHog Deep: funnels, cohorts, retention, flags, experiments
Capabilities as each vendor describes them on its own site, October 2026. A capability we could not find is marked not built in.
A platform you have to feed
PostHog is excellent at what it is built for, and it is not expensive to start. The cost is the instrumentation: the event taxonomy, the dashboards, the time spent in them. For a product with users that is a good trade. For a website, it is a job nobody finishes, and the website questions, where visitors come from, which of them pay, where the rest stop, go unanswered while the funnels wait for events.
When PostHog is the right tool
If you are studying what users do inside your product, PostHog is the stronger choice and it is not close: retention cohorts, feature flags, experiments and session replay are things Clerion does not do, and its free allowance is generous. Many teams run both, PostHog for the product and Clerion for the website. The scripts do not conflict.
Switching from PostHog
There is nothing to migrate. Paste one tag, name your win with one line, and the first briefing is written from your first week of visitors. Bring your Google Analytics history if you have it. Keep PostHog on the product if you need it.