Head-to-head

GA4 vs. Matomo: Google Stack or Open Source?

Both are free of licence fees; you pay differently: GA4 with data in the US cloud, Matomo with running it yourself. Where each trade is worth it.

Updated July 2026 · editorially rated · no paid placement

Google Analytics 4 (GA4)

Google

US-Cloud

3.5

The web analytics standard with a huge ecosystem and a free BigQuery export. Consent-dependent and US cloud; it only earns its keep with a clean setup.

Full review →

Matomo

InnoCraft

EU region

3.9

The open-source classic and darling of the DACH public sector. 100% data ownership, but the UI feels dated and the architecture struggles with massive event volumes.

Full review →

Add a third tool: all 9 in Analytics

Criterion

Google Analytics 4 (GA4)

Matomo

Tracking without consent

Modelled only (Consent Mode)

Configurable anonymised mode

Data ownership

Google cloud, settled by contract

Complete, your own servers

Ads connection

Google Ads native

No native connection

Rated by our review methodology. As of July 2026, prices without guarantee.

Decision help

What we recommend, and when.

Google Analytics 4 (GA4), if …

Conversion data has to flow back into Google Ads.

BigQuery is the set warehouse; the native export saves pipeline work.

Nobody should operate servers, not even an analytics server.

Matomo, if …

Data ownership is in the requirements: data stays on your infrastructure.

The data protection officer has effectively ruled out US services.

Zero licence cost with ops capacity available.

Scenario

Recommendation

Why

Google Ads and Shopping as the core channels

GA4

Conversion import and audiences only work natively there.

US services are ruled out internally

Matomo

On-premise keeps every request on your infrastructure.

Reporting runs through a warehouse

GA4

The free BigQuery export is the shortest path there.

Internal compliance view plus marketing view needed

Both in parallel

GTM Server-Side serves both from one event stream.

Our verdict

Performance marketing in the Google ecosystem favours GA4. Full data ownership on your own infrastructure favours Matomo. Teams that need both run GA4 for marketing and Matomo as the compliance baseline.

In depth

Two philosophies, one measurement problem

GA4 is the default because it feels free and serves the Google advertising ecosystem directly. Matomo is the antithesis: software in your own house, data in your own house, responsibility in your own house.

In DACH projects we rarely see an either-or on principle. The decision falls at two points almost every time: how important Google Ads is, and what the data protection officer says. The matrix above maps exactly those cases.

The wider five-tool comparison, including etracker and the cookie-banner question, lives at GDPR-compliant analytics.

Privacy and EU fit

Matomo on-premise keeps every request on your infrastructure, without US transfer and without the third-country debate. GA4 remains a US cloud service despite EU endpoints, with consent duty and modelled gaps. In a pure privacy assessment this is not a close call.

Implementation effort

GA4 is productive via GTM in days and familiar to every agency in the market. Matomo demands an operating decision up front: your own server with sizing and update discipline, or Matomo Cloud. Both hang behind GTM Server-Side at our end, so a tag switch needs no website change.

Pricing and TCO

GA4 costs no licence; you pay with consent dependence and ongoing data-quality work. Self-hosted Matomo costs servers and ops time, and the database grows with every event. At high volume, Matomo sizing is the biggest single line on the bill.

Migration

Historical GA4 data cannot be imported into Matomo; the BigQuery export stays on as the archive. We set up a fresh event schema, run both systems in parallel for four weeks, and validate the core metrics against each other. Then the shutdown decision is made.

What we build the winner with

Related services

Measurement & Privacy Engineering →

Sources

Google Analytics help center (accessed 2026-07-03)
Matomo on-premise (accessed 2026-07-03)

FAQ · 3 questions

The most common questions.

Different question? Write to us directly, reply within 48 h.

For web analytics, yes; for the Google ecosystem, no. Funnels, segments, and e-commerce reporting are covered by Matomo; conversion import and audiences for Google Ads exist only with GA4.

Yes, as Matomo Cloud hosted by the vendor. That removes the ops burden, and billing runs by traffic.

Inside the GA4 interface the configured retention period applies. The BigQuery export preserves the history permanently, which is why we enable it before any migration.

What neither of them fixes

No analytics tool repairs a missing tracking concept.

Which tool fits is decided by the audit against your numbers, not by a comparison article.

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