Switch from KnoCommerce to Causality Engine
KnoCommerce uses post-purchase surveys. Causality Engine uses causal inference on your GA4 export. There is nothing to migrate: the first read takes 1 to 2 minutes, and you can run both side by side.
€99 once, excl. VAT. Keep KnoCommerce running while you compare.
KnoCommerce and Causality Engine, side by side.
Short answer: Keep KnoCommerce. 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 KnoCommerce's post-purchase surveys, for €99.
Scroll the table sideways for every column.
| Compared on | Causality EngineThe layer on top | KnoCommercePost-purchase surveys for ecommerce attribution |
|---|---|---|
| Compatible with Causality Engine | It is the layerReads your GA4 export | YesKeep KnoCommerce, add the read |
| Pay once, no subscription | Yes€99 per read; Pro at €299 a month is optional | Subscription$19/mo |
| Price stays flat as you grow | Yes€99 a read, whatever your revenue or ad spend | Not stated |
| Money back if it does not help | YesFull refund within 30 days, no questions asked | No refunds for unused services; no cancellation penalties1 |
| Method | Causal inference on your GA4 export | Post-purchase surveys |
| Starting price | €99 once, excl. VAT | $19/moknocommerce.com/pricing, read |
| Pricing model | €99 per read, or Pro at €299 a month | Three tiers (Starter $19, Analyst $119, Pro $299 per month) differing by live surveys, questions, integrations and audiences; billed monthly, month-to-month, with an annual-payment discount |
| Setup | Upload a GA4 export; results in 1 to 2 minutes | Shopify integration (embed script elsewhere); vendor says live in under 5 minutes on Shopify |
| Best for | Ecommerce brands on GA4 spending on two or more channels | E-commerce businesses, especially Shopify brands |
| How it gets your data | ||
| Needs its own pixel, tag or SDK | NoNothing to install | No |
| Works with Google Analytics 4 | YesA GA4 export is the input | Not stated |
| Native store integrations | Any store that runs GA4Shopify, WooCommerce, Shopware, Magento or a custom build | Shopify, WooCommerce2 |
| Server-side tracking or conversion APIs | NoIt reads data you already collect | Not stated |
| What it measures | ||
| Multi-touch attribution | NoCausal attribution: what each channel caused | Not stated |
| Marketing mix modelling | No | Not stated |
| Incrementality or holdout tests | NoNo test to run | Not stated |
| Post-purchase surveys | No | Yes3 |
| How you buy it | ||
| Self-serve sign-up | YesUpload at /start | Yes4 |
| Free trial or free plan | First finding freeThe €99 read is refundable within 30 days | 7-day free trial5 |
| Billing terms | None for the readPro is billed monthly, cancel any time | Monthly (month-to-month); annual discount available6 |
| Who makes it | ||
| Headquarters | Utrecht, Netherlands | Not stated |
| Founded | 2023 | Not stated |
| States EU data hosting | YesPrimary infrastructure in the EU, per our privacy policy | Not stated |
| What reviewers say | ||
| G2 | Not listed yet | Not stated |
| Capterra | Not listed yet | Not stated |
| Shopify App Store | No appNothing to install | 4.9 stars (118 reviews)7 |
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. knocommerce.com/terms-of-service: “You will not be refunded for unused services, but will incur no cancellation penalties.”
- 2. docs.knocommerce.com/en/articles/6150667-woocommerce-extension: “KnoCommerce now offers a WooCommerce extension that enables you to display post-purchase surveys on your WooCommerce store's confirmation page.”
- 3. knocommerce.com: “Start collecting data with our post-purchase survey tools.”
- 4. knocommerce.com/pricing: “Sold. When can we start? Today! Hit the "Start for Free" button”
- 5. knocommerce.com/pricing: “We offer both a 7-day free trial and free one-on-one demos with our team on all our plans.”
- 6. knocommerce.com/pricing: “No long-term contracts! Our plans are month-to-month, allowing you to cancel at any time.”
- 7. apps.shopify.com/knocommerce: “Rating 4.9 (118)”
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.
How to switch, in five steps.
No cancellation required yet
Keep KnoCommerce running. Causality Engine reads your GA4 CSV export, so nothing conflicts and no data moves between the two.
Upload your GA4 CSV (no integration required)
Export 12 months or more of GA4 data and upload it. Longer reads better. No OAuth, no pixel, no code, no DNS changes. Shopify native is on the roadmap.
Run your first analysis
What each channel caused, next to last-click, with a data-health score on each, 1 to 2 minutes after the upload. Compare it with what KnoCommerce was telling you.
Evaluate side by side
Run both for a month and compare them channel by channel. Where they disagree is where a budget decision is at stake.
Cancel KnoCommerce when ready
Only if the side-by-side says you should. Nothing in Causality Engine depends on KnoCommerce being gone.
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.
Free, in your browser: your file is not uploaded. The full read is €99, refundable within 30 days. Prices exclude VAT.
Or book a 30-min call.