Comparison 2026

Sublim Analytics vs Fathom Analytics

Fathom is a fast, privacy-first analytics tool built in Canada: GDPR-compliant, simple, and cookie-free. But it lacks AI insights, behavioral analytics, and task management, and stores data outside the EU by default. Here's the full comparison.

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At a glance

Recommended

AI-powered, all-in-one analytics platform. GDPR-compliant, hosted in France, with behavioral analytics and task management included.

Hosted in France, EU data sovereignty
AI that turns insights into actions
Behavioral analytics included
Task and project management
OKR and goal tracking
Built-in SEO & search performance
Automated reporting

Privacy-first

Fast, privacy-first analytics built in Canada. Cookie-free, GDPR-compliant, with EU data anonymization before any US storage.

Fast and lightweight script
Cookie-free tracking
GDPR compliant
Simple, clean interface
30-day free trial
Data ultimately stored in the US
No AI insights
No behavioral analytics
No task management
No free plan

Feature-by-feature comparison

Both Sublim and Fathom are privacy-focused and cookie-free, but they serve very different use cases.

Feature
GDPR compliant
Cookie-free tracking
100% data accuracy
EU-hosted data
Built-in AI insights
Task management
Behavioral analytics
OKR tracking
Automated reports
Custom dashboards
Campaign tracking (UTM)
Goal / conversion tracking
Real-time data
Email reports
Free plan

Partial support — hover for details

Deep dive

A closer look at the key differences between Sublim and Fathom Analytics.

EU Data Sovereignty: What Fathom's EU Isolation Actually Means

Fathom is genuinely privacy-first and GDPR-compliant. But for EU-based businesses, there is an important distinction between GDPR compliance and EU data sovereignty, and Fathom sits firmly in the first category.

How Fathom's EU isolation works

Fathom has invested in what they call EU isolation: when a visitor from the EU lands on your site, their data is routed to European servers, where the IP address and User-Agent are immediately anonymized. No personal data crosses the Atlantic. This is a technically sound approach to GDPR compliance and a meaningful privacy protection.

The distinction is what happens next. Once anonymized, the data is transferred to and stored on Fathom's US servers. The company itself is Canadian, incorporated outside the EU, and subject to non-EU legal jurisdiction. The data at rest is in the US.

Why this matters for some EU businesses

For most businesses, Fathom's EU isolation is sufficient for GDPR compliance. No personal data leaves the EU, which is the core requirement. But for organisations with stricter internal data governance policies, public sector contracts, or clients who specify EU-only data storage in their agreements, the distinction matters.

Sublim stores all data in France, under French and EU legal jurisdiction, with no third-country transfers at any stage of the data lifecycle. If your compliance requirements go beyond GDPR minimums, that difference is material.

Simplicity as a Feature, Not Just a Philosophy

Fathom is built around the idea that analytics should be simple enough to understand at a glance. That is a genuine design choice, and it works well for its target audience.

Who Fathom is designed for

Fathom's sweet spot is the developer, indie maker, or small business owner who wants to know how much traffic they are getting, where it comes from, and which pages perform best, without spending time learning a complex interface. The dashboard is clean, the setup takes minutes, and there is nothing to configure.

For this audience, the absence of advanced features is not a limitation. It is the point. Fathom deliberately avoids the complexity of GA4 or Matomo, and many of its users have switched specifically to get away from that complexity.

Where the same simplicity becomes a constraint

For marketing teams accountable for growth, the picture changes. A dashboard that shows traffic trends and top referrers answers yesterday's questions. It does not help you understand why conversion dropped on your pricing page, which campaign is actually driving qualified leads, or what your team should prioritise this week.

Fathom has no segmentation beyond basic filters, no custom dashboards, no way to connect data to tasks, and no automated alerts. You check the dashboard, you see numbers, and you are left to draw your own conclusions. For a growth team, that is a lot of interpretation work left on the table.

AI Insights: From Seeing Data to Understanding It

Fathom shows you your data clearly. It does not help you interpret it, prioritise it, or act on it.

The interpretation gap

Fathom has no AI features. There is no anomaly detection, no recommendation engine, no system that flags unusual patterns or surfaces opportunities you would otherwise miss. When something changes in your metrics, the tool will not tell you. You need to notice it yourself, understand what caused it, and decide what to do, every time.

For lean marketing teams checking dashboards between other responsibilities, this is a real cost. Signals get missed. Decisions get delayed. And the value of the data you are collecting stays locked behind the time it takes to manually analyse it.

What proactive AI changes

Sublim's AI layer is built to do that interpretation work continuously. It monitors your metrics, flags anomalies before you notice them, identifies content and campaigns performing above or below expectations, and connects those insights directly to your task management workflow.

The goal is not to add a chatbot on top of a dashboard. It is to shorten the path from data to decision for teams that do not have an analyst available every time a number moves.

Behavioral Analytics: The Missing Layer

Traffic data and behavioral data answer different questions. Fathom covers only one of them.

What you can't diagnose from traffic data alone

Fathom can tell you that your homepage has a high bounce rate. It cannot tell you whether visitors are leaving because the headline is unclear, the page loads too slowly on mobile, or a CTA button is broken on Safari. Those answers require behavioral data: heatmaps, session recordings, scroll depth tracking.

Without that layer, diagnosing conversion problems means guessing. Teams end up running A/B tests on the wrong elements, making copy changes that don't address the real issue, and spending budget on acquisition for a page that was never going to convert.

Behavioral analytics in Sublim

Behavioral analytics is built into Sublim alongside core traffic data, within the same privacy-first, cookieless architecture. Heatmaps and session recordings are available from the same interface as your traffic metrics, connected to the same goals and projects.

There is no extra subscription, no extra script, and no separate consent layer. When the AI flags a conversion drop, you can move directly to the session recordings for that page without switching tools.

Which web analytics tool should you choose?

Choose Sublim if...

You need data stored in the EU, not just anonymized before leaving it
You want AI insights that automatically surface what matters
Your team needs behavioral analytics without extra subscriptions
You want to track OKRs and manage marketing tasks alongside analytics
You need automated, shareable reports for clients or stakeholders
You want a free plan to get started without a credit card

Try Sublim for free

Consider Fathom if...

You want a fast, lightweight script with minimal impact on page performance
You only need basic traffic metrics with a clean interface
You're already a Fathom customer and the migration effort isn't justified
You prefer a Canadian-built tool with a long track record in the privacy-first analytics space

Frequently asked questions

Is Fathom Analytics GDPR-compliant?

Yes, Fathom is GDPR-compliant. It is cookie-free and anonymizes EU visitor data within Europe before any information reaches US servers. However, Fathom is a Canadian company and the anonymized data is stored in the US. For businesses that require all data, including anonymized data, to be stored within the EU, Sublim is the better fit — all data is stored in France.

Where is Fathom data stored?

Fathom uses EU isolation: EU visitor data is anonymized in Europe (IP stripped, no personal data crosses the Atlantic), then the anonymized data is stored on US servers. Sublim stores all data in France, under EU legal jurisdiction, with no transfers to third countries at any stage.

What does Sublim have that Fathom doesn't?

Sublim adds AI-powered insights and recommendations, behavioral analytics (heatmaps, session recordings), task and project management, OKR tracking, automated reports, custom dashboards, and a free plan. Both tools are simple and cookie-free. Sublim goes further on intelligence, action, and EU data sovereignty.

How does Fathom's pricing compare to Sublim?

Fathom starts at $15/month for 100,000 monthly pageviews, with no free plan (30-day free trial available). Sublim offers a free plan for small sites, with paid plans that include AI insights, behavioral analytics, and task management in one subscription.

Does Fathom have a free plan?

No. Fathom does not offer a free plan. They offer a 30-day free trial with no credit card required. Sublim offers a free plan with core analytics features for small sites and solo users.