Fathom Analytics vs Google Analytics 4: honest comparison

This comparison comes down to a genuine trade-off: privacy and simplicity versus depth and cost. Fathom Analytics gives you clean, cookieless analytics that require no consent banner and no GDPR headaches. Google Analytics 4 gives you powerful, free analytics that require cookies, consent management, and careful configuration to stay compliant.

Neither tool is objectively better. The right choice depends on what your business actually needs from its analytics, and how much compliance overhead you are willing to manage.

Feature comparison

Pricing comparison

Google Analytics 4 is free, and for many businesses that settles the debate immediately. But the true cost of GA4 is not zero. You need a cookie consent platform (typically £6-12 per month), time to configure Consent Mode v2, and ongoing effort to maintain compliance. The hidden cost of GA4 is the compliance infrastructure it demands.

Fathom starts at $15 per month (roughly £12) for up to 100,000 page views. That sounds expensive compared to free, but Fathom eliminates the need for a cookie consent banner for analytics purposes. If your site only uses analytics cookies, Fathom could actually save you money by removing the CMP subscription entirely.

Over three years, the maths works like this: GA4 plus a cookie consent tool costs roughly £216-432 for the CMP alone, plus your time configuring it. Fathom costs roughly £432 over three years with no additional compliance tools needed for analytics. The cost difference is smaller than the sticker price suggests.

Setup and ease of use

Fathom takes about five minutes to set up. You add a single script tag to your site, and your dashboard starts populating immediately. There is no configuration, no consent integration, no tag manager required. The dashboard shows you page views, visitors, referrers, and goals on a single screen. If you have ever felt overwhelmed by GA4, Fathom will feel like a breath of fresh air.

GA4 has a notoriously steep learning curve. The event-based data model is powerful but unintuitive for anyone used to Universal Analytics. Setting up properly requires Google Tag Manager, consent mode integration, data stream configuration, and custom event definitions. Most small business owners never fully configure GA4, which means they are collecting data they cannot interpret.

Fathom Analytics: detailed review

Google Analytics 4: detailed review

Our verdict

For most UK small businesses with simple websites, Fathom is the pragmatic choice. It gives you the analytics you actually look at, removes the compliance overhead of cookie consent for analytics, and respects your visitors' privacy. The monthly cost is real, but the time and hassle it saves is worth more than £12 a month for most business owners.

GA4 remains essential if you run e-commerce, depend on Google Ads attribution, or make marketing decisions based on detailed user behaviour data. The depth of analysis is genuinely irreplaceable for data-driven businesses. But be honest about whether you actually use that depth. If your GA4 dashboard goes unchecked for weeks at a time, you are paying a compliance cost for data you never act on.

A practical middle ground: use Fathom as your primary analytics for day-to-day insight, and only add GA4 if you have a specific, ongoing need for its advanced features. There is no rule that says you cannot run both.

Frequently asked questions

Does Fathom Analytics require a cookie consent banner?

No. Fathom does not use cookies or collect personal data, so it does not trigger PECR consent requirements. You can run Fathom without a cookie banner for analytics purposes. However, if your site uses other cookies (marketing, preferences, etc.), you will still need a consent banner for those. Fathom simply removes analytics from the consent equation.

Is Google Analytics 4 compliant with UK GDPR?

GA4 can be configured for UK GDPR compliance, but it requires effort. You need a properly configured cookie consent banner, Consent Mode v2 integration, appropriate data retention settings, and ideally server-side tagging or IP anonymisation. The ICO has not banned Google Analytics in the UK (unlike some EU data protection authorities), but you must ensure your implementation meets consent and data transfer requirements.

Will I lose important data by switching from GA4 to Fathom?

Yes, you will lose some data depth. Fathom does not provide user-level tracking, multi-touch attribution, audience segmentation, or e-commerce funnel analysis. If your marketing decisions depend on detailed conversion paths or audience behaviour, GA4 provides data that Fathom cannot replicate. For many small businesses, however, Fathom's page views, referrers, and goal tracking provide sufficient insight.