Experiment faster. Convert more.

Run the experiment.
Build the hypothesis.
Measure the lift.

Crow is the CRO platform that tells you what to test, helps you build the hypothesis, runs the experiment, and measures the lift. No more guessing.

A/B Testing
Hypothesis Builder
Suggested Tests
CRO Scoring
Site Auditadd-on
Buildadd-on

Free 1-month trial · No credit card required · Cancel anytime

From broken funnel
to more revenue
in three steps.

01
Step 01
Analyse your page
Point Crow at any live URL. In seconds: a full CRO audit of your page structure, copy quality, friction points, and trust gaps — scored by what each one is actually costing you.
02
Step 02
Fix the right things first
AI ranks every issue by estimated uplift. Attack the highest-leverage fixes first. Not whatever someone mentioned in Slack.
03
Step 03
Measure the result
Track conversion rate per experiment. Results in one place. No more juggling dashboards, spreadsheets, or half-remembered Slack threads.
Core CRO Platform

Hypothesise. Test.
Convert.

Every feature is built around one job: finding what converts better and proving it with data. A/B testing, hypothesis builder, suggested tests, and CRO scoring — then add heatmaps or SEO audit when you need them.

Beat This Page
Paste any competitor URL. Get a higher-converting version in seconds.

Crow fetches and analyses any competitor page, scores it for conversion potential, and hands you an editable block-based version. Improve it, run it through the CRO scoring system, and publish a version that converts better.

Competitor
68/100
12 issues · low CVR
Your version
85/100
↑ +17 pts · higher CVR
Add-ons — layer on what you need
SEO Site Audit
Full Suite add-on

Full site crawl surfaces pages losing traffic to competitors. Fix technical issues, close keyword gaps, and see which pages need the most attention — all ranked by impact.

Heatmaps
Core + Heatmaps add-on

Click, scroll, and movement heatmaps for every page. See exactly where visitors engage and where they drop off — before you build the next hypothesis.

AI Research Panel
Core + Heatmaps add-on

Interview the same AI persona simultaneously through GPT, Claude, and Gemini. See where they agree and where they diverge — and trust the insights that hold across all three.

Sibling product

Need a page to
test on? Meet Build.

Build is a standalone landing page editor that connects directly to Crow experiments. Create a page, hook it into an A/B test, and start collecting real conversion data — without touching your main site.

18+ conversion-optimised block types — including hero sections, forms, pricing tables, and social proof. Live CRO score as you build. Publish on your own domain in minutes.

18+ block types
Sticky nav, two-column layouts, hero sections, forms, pricing tables, testimonials and more.
Live CRO score
Every block you add or remove instantly updates your conversion score. Build toward 100.
Crow experiments
Connect any Build page directly to a Crow A/B experiment. Traffic splits automatically.
Custom domain
Publish on your own domain or subdomain. Point your DNS, Crow handles the rest.

Experiment data in GA4
and GTM automatically.

crow.js detects Google Tag Manager and GA4 on the page and fires events the moment a visitor is bucketed or converts. Zero extra configuration.

Google Tag Manager
dataLayer events
  • crow_experiment_viewed: fired when a visitor is bucketed into a variant
  • crow_conversion: fired when any conversion goal is completed
  • Carries experiment_name, variant_name, experiment_id, variant_id
  • Build triggers to route data to GA4, Segment, Hotjar, or any tag
Google Analytics 4
Google Analytics 4
Custom events
  • crow_experiment_viewed and crow_conversion arrive as GA4 events
  • Segment by experiment_name and variant_name in GA4 Explorations
  • Build audiences, funnels, and attribution reports on experiment data
  • No extra code or GA4 configuration required
Install in 30 seconds
Add this snippet before your closing </body> tag. Everything else is automatic.
<script src="cdn.yourcrow.com/crow.js"
data-key="YOUR_KEY"></script>

Start with Core CRO.
Add what you need.

Every plan includes a full 1-month free trial. No credit card required. Add heatmaps or SEO audit any time — no plan change needed.

Core
$79/ month

The full CRO platform — A/B testing, hypothesis builder, suggested tests, and CRO scoring.

  • 10 active experiments
  • 10,000 tracked visitors / month
  • Live CRO score as you build
  • AI CRO analysis & suggestions
  • Hypothesis builder
  • Suggested tests (AI-generated)
  • Block-level A/B variants + stat significance
  • Experiments engine (crow.js)
  • Lead capture & CSV export
  • Full analytics suite
  • Chrome extension (free)
  • GTM & GA4 injection per page
Start free trial
Most popular
Core + Heatmaps
$199/ month

Everything in Core, plus click & scroll heatmaps to sharpen your hypotheses.

  • Everything in Core
  • Unlimited experiments
  • 100,000 tracked visitors / month
  • Click & scroll heatmaps
  • Beat This Page URL importer
  • AI Research Panel (GPT + Claude + Gemini)
  • CMS integrations (WordPress, Contentful, Webflow, Shopify)
  • Custom domain publishing
  • Priority AI analysis
  • Team seats (5)
Start free trial
Full Suite
$449/ month

Core + Heatmaps + full SEO site audit. Built for agencies and high-traffic campaigns.

  • Everything in Core + Heatmaps
  • Unlimited visitors
  • Full SEO site audit & crawl
  • Keyword gap analysis
  • White-label reports
  • Dedicated success manager
  • Full API access
  • SSO / SAML
  • Custom SLA
Talk to us

Questions.

Free resource

The Complete Guide
to CRO

10 chapters covering everything from calculating your conversion rate to running statistically valid A/B tests. Practical, jargon-free, and backed by data.

Stop leaving revenue
at the door.

Join growth teams who use Crow to find and fix the leaks in their funnel — and keep finding them, every week.

1-month free trial · No credit card · Cancel any time