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HubSpot Marketing vs Causality Engine

HubSpot Marketing is best for B2B companies using HubSpot CRM wanting basic attribution. Choose Causality Engine when you need a defensible per-channel read before a budget decision, from the GA4 export you already have.

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€99 once, excl. VAT. Keep HubSpot Marketing; use us as the causal second opinion.

Side by side. Every fact sourced.

Short answer: Keep HubSpot Marketing. Causality Engine is not a replacement for it: it installs nothing and reads the GA4 export you already have, so it adds a read of what each channel caused on top of HubSpot Marketing's contact-based attribution reporting, for €99.

Scroll the table sideways for every column.

Causality Engine compared with HubSpot Marketing: data, measurement, buying, company and reviews. Vendor facts read 12 October 2026, each with its source below the table.
Compared onCausality EngineThe layer on topHubSpot MarketingAll-in-one marketing automation platform
Compatible with Causality EngineIt is the layerReads your GA4 exportYesKeep HubSpot Marketing, add the read
Pay once, no subscriptionYes€99 per read; Pro at €299 a month is optionalSubscriptionFree plan; Starter from $10/mo per seat
Price stays flat as you growYes€99 a read, whatever your revenue or ad spendNot stated
Money back if it does not helpYesFull refund within 30 days, no questions askedFees are non-refundable1
MethodCausal inference on your GA4 exportContact-based attribution reporting
Starting price€99 once, excl. VATFree plan; Starter from $10/mo per seathubspot.com/products/marketing, read
Pricing model€99 per read, or Pro at €299 a monthFree; Starter from $10 a seat a month (new-customer price, $20 regular); Professional from $890/mo; Enterprise from $3,600/mo
SetupUpload a GA4 export; results in 1 to 2 minutes2 to 4 weeks
Best forEcommerce brands on GA4 spending on two or more channelsB2B companies using HubSpot CRM wanting basic attribution
How it gets your data
Needs its own pixel, tag or SDKNoNothing to installYes2
Works with Google Analytics 4YesA GA4 export is the inputNot stated
Native store integrationsAny store that runs GA4Shopify, WooCommerce, Shopware, Magento or a custom buildShopify, BigCommerce3
Server-side tracking or conversion APIsNoIt reads data you already collectYes4
What it measures
Multi-touch attributionNoCausal attribution: what each channel causedYes5
Marketing mix modellingNoNot stated
Incrementality or holdout testsNoNo test to runNot stated
Post-purchase surveysNoNot stated
How you buy it
Self-serve sign-upYesUpload at /startYes6
Free trial or free planFirst finding freeThe €99 read is refundable within 30 daysFree plan; 14-day free trial7
Billing termsNone for the readPro is billed monthly, cancel any timeMonthly, quarterly or annual billing (set in the order)8
Who makes it
HeadquartersUtrecht, NetherlandsCambridge, United States9
Founded2023200610
States EU data hostingYesPrimary infrastructure in the EU, per our privacy policyYes11
What reviewers say
G2Not listed yetNot stated
CapterraNot listed yet4.5 stars (6,258 reviews)12
Shopify App StoreNo appNothing to install1.0 stars (8 reviews)13

Causality Engine installs nothing on your site. It reads the GA4 export you already have, so it runs on top of any tool here without touching its setup. The one condition: GA4 runs on your store too. “Not stated” means we could not find it on the vendor's own pages or listings on 12 October 2026; it does not mean the feature is missing.

Sources, read 12 October 2026

  1. 1. legal.hubspot.com/terms-of-service: “All payment obligations are non-cancelable and all amounts paid are non-refundable, except as specifically provided for in this Agreement.”
  2. 2. knowledge.hubspot.com/reports/install-the-hubspot-tracking-code: “If you have any externally hosted pages (i.e., pages not on HubSpot), you must install the HubSpot tracking code manually to capture analytics”
  3. 3. knowledge.hubspot.com/integrations/connect-hubspot-and-shopify-via-data-sync: “Connect Shopify to HubSpot using data sync to keep customer, company, product, order, and cart data synchronized between the two apps.”
  4. 4. knowledge.hubspot.com/ads/create-and-sync-ad-conversion-events-with-your-meta-ads-accounts-using-metas-conversion-api: “you can create events using Meta's Conversion API to sync your CRM lifecycle stage changes or form submissions from HubSpot.”
  5. 5. knowledge.hubspot.com/reports/create-attribution-reports: “Linear: gives equal credit across all interactions. Time Decay: gives more credit to interactions that occurred closer to the conversion.”
  6. 6. hubspot.com/products/marketing: “Free No credit card required $0/month ... Start 14-day free trial of HubSpot's marketing tools”
  7. 7. hubspot.com/products/marketing: “Free No credit card required $0/month ... Start 14-day free trial”
  8. 8. knowledge.hubspot.com/account-management/understand-hubspot-order-totals-billing-and-charges-frequently-asked-questions: “Your billing frequency depends on the billing terms selected in your order: Monthly ... Quarterly ... Annually”
  9. 9. linkedin.com/company/hubspot: “Headquarters Cambridge, Massachusetts”
  10. 10. linkedin.com/company/hubspot: “Founded 2006”
  11. 11. knowledge.hubspot.com/account-security/hubspot-cloud-infrastructure-and-data-hosting-frequently-asked-questions: “hosted on Amazon Web Services (AWS) in the United States (East and West regions), Canada, Australia, and European Union (Germany).”
  12. 12. capterra.com/p/171840/HubSpot-Marketing: “HubSpot Marketing Hub 4.5 (6,258) ... Based on 6,258 user reviews”
  13. 13. apps.shopify.com/hubspot-2: “Rating 1.0 (8) Developer Hubspot (Data Sync)”

Every tool we track, on every fact · The same facts as JSON

Competitor pricing is each vendor's publicly listed pricing as read on the date shown, and it changes without notice: verify on the vendor's own site before relying on it. Vendors without a public price are marked as such. Comparisons set Causality Engine's one-time €99 analysis against subscription models.

Where HubSpot Marketing falls short

  • Attribution is a small feature inside a huge platform
  • B2B/CRM-focused not ecommerce
  • Contact-based model breaks with privacy changes
  • No causal inference or incrementality

What Causality Engine does differently

  • No pixel and no tag. It reads the GA4 export you already have, where HubSpot Marketing needs its own tracking on the store.
  • What each channel caused, next to what last-click gave it, with a data-health score on every channel.
  • The first number 1 to 2 minutes after the upload, on whatever GA4 history you export; 12 months or more reads best.
  • €99 once, excl. VAT. Pro is €299 a month, billed monthly, cancel any time.
  • Full refund within 30 days, no questions asked. You keep the read.

HubSpot Marketing and Causality Engine: questions

  • What does HubSpot Marketing cost?
    HubSpot Marketing's pricing page lists Free plan; Starter from $10/mo per seat.Source: hubspot.com/products/marketing, read .
  • How does HubSpot Marketing measure, and how does Causality Engine?
    HubSpot Marketing: Contact-based attribution reporting. Causality Engine: causal inference on your GA4 export, showing what each channel caused next to what last-click gave it.
  • Does HubSpot Marketing need a pixel or tracking script?
    Yes, according to knowledge.hubspot.com. Causality Engine needs none: nothing to install.Source: knowledge.hubspot.com/reports/install-the-hubspot-tracking-code, read .
  • What does Causality Engine cost?
    The first finding is free and runs in your browser before any signup. The full read is €99 once, excl. VAT, refundable within 30 days, no questions asked. Pro is €299 a month, billed monthly, cancel any time. The price does not rise with revenue, ad spend, orders or traffic.
  • Can I use Causality Engine together with HubSpot Marketing?
    Yes. Causality Engine installs nothing on your site. It reads the GA4 export you already have, so it runs on top of any tool here without touching its setup. The one condition: GA4 runs on your store too.

Keep reading

Four named Dutch brands and our own store, with the figures they let us publish: the case studies.

GA4 export uploadNo pixel1–2 minutes to a first read30-day refund, no questions asked

Your platforms guess.
We run the math.

Upload a GA4 export and see what each channel caused, next to last-click, in 1–2 minutes. The read is yours to keep.

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The free finding runs in your browser. Your file never leaves it. The full read is €99, refundable within 30 days, no questions asked. Prices exclude VAT.