Sumly vs Fathom

Fathom is simple web analytics with no cookies, from a Canadian company. Sumly counts visitors too, and adds subscription revenue from your billing, the App Store and Google Play.

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Fathom as described on its own pages, 6 November 2026.
SumlyFathom
Web analytics without third-party cookies SumlyYes; in the EU and UK the visitor cookie waits for consent FathomYes, with no cookies at all
Payment providers Sumly22 payment providers, from Stripe, Paddle and RevenueCat to the App Store and Google Play FathomNot found; revenue is a value your site sends with an event
MRR, churn and refunds from billing SumlyYes FathomNo; revenue is sent as event values from your site
Revenue by traffic source SumlyYes FathomConversions for a campaign when you filter by it; revenue by source not described
App Store and Google Play (directly or through RevenueCat) SumlyYes FathomNot found
App installs tied to the visit that led to them SumlyYes: exact on Android, a marked estimate on iOS from a hashed IP within the hour FathomNot found
Funnels and user journeys SumlyYes FathomNot found
Google Search Console in the dashboard SumlyYes, clicks beside revenue FathomYes, with clicks, impressions, click rate and position
MCP server for AI assistants SumlyYes FathomNot found; Luna, an assistant inside the dashboard, reads your stats when you allow it
Brand mentions on the traffic chart SumlyReddit, Hacker News, Bluesky, YouTube, the web and the posts on X the web search finds, searched daily or weekly and marked on the traffic chart FathomNot found; its AI tab counts visits from AI tools, not mentions
App users from your server, met with the RevenueCat buyer SumlyFrom your server through the events API, met with the RevenueCat buyer by app user id FathomNot found; creating events through its API is marked deprecated, and RevenueCat is not listed
Costs and ROI per source, campaign or creator link, also sent by API SumlyBy hand, from a file or by API, with ROI by source, campaign and creator link FathomNot found
Who is likely to pay, from your own payers SumlyAn estimate from the project's own payers, once it has five tied to visits FathomNot found
A setup prompt for coding assistants SumlyEach integration page and tracking line copies as a prompt FathomNot found
Script from your own domain, past ad blockers SumlyOne DNS record (Starter and Growth), or two paths on your site FathomNo longer offered; custom domains were dropped in 2023 because blockers caught them, and older ones keep working
Import of past visits from Google Analytics SumlyNo FathomYes, from GA4
Several companies in one account SumlyYes: projects grouped by company, each company apart and all added up, team access by company FathomMany sites in one account with an all-sites view; no team logins yet, dashboards are shared by link
Open source and self-hosting SumlyNo FathomNot for the hosted product; Fathom Lite, an older MIT-licensed edition, can be hosted yourself
Monthly package for your accountant SumlyYes: by project, by country, EU or not, and payouts to the bank, mailed to your accountant FathomNot found
Mobile app (iOS and Android) SumlyAndroid on Google Play; iPhone coming soon to the App Store FathomNot found
Price SumlyFrom $9 a month, 14-day trial, no card FathomFrom $15 a month for 100,000 pageviews, 7-day trial with a card

Fathom as described on its own pages, 6 November 2026: usefathom.com, usefathom.com/pricing, usefathom.com/docs/start/trials, usefathom.com/docs/events/overview, usefathom.com/docs/events/ecommerce-conversions, usefathom.com/docs/features/campaigns, usefathom.com/docs/how-tos/measure-a-campaign, usefathom.com/docs/features/google-search-console, usefathom.com/docs/features/ga-importer, usefathom.com/docs/script/eu-isolation, usefathom.com/features/data-isolation, usefathom.com/docs/troubleshooting/cookies, usefathom.com/docs/features/shared-dashboards, usefathom.com/docs/features/all-sites, usefathom.com/why-fathom-analytics/agency-analytics, usefathom.com/changelog/jun2026-site-packs, usefathom.com/changelog/mar2023-firewall-settings, usefathom.com/changelog/oct2026-luna, usefathom.com/changelog/oct2026-ai-tab, usefathom.com/api, usefathom.com/docs/troubleshooting/features, usefathom.com/pricing/lite, github.com/usefathom/fathom . Something out of date? Write to us and we fix it.

Where Fathom is the better choice

Fathom suits a site owner, or an agency with many client sites, who wants simple web analytics with no cookies and no consent banner, and its Google Analytics history brought along.

  • No cookies at all, so its analytics needs no consent banner anywhere.
  • Visits from the EU are processed in the EU by default, and one script address sends all traffic through the EU.
  • At least 50 sites on every plan, and more on the bigger ones.
  • An importer that brings over your GA4 history.

Where Sumly fits

Sumly suits a founder who wants simple visitor counts too, but mainly wants them tied to subscription revenue from the billing system and the app stores.

  • You sell subscriptions and want MRR, churn, refunds and fees read from your billing, not sent from your site as event values.
  • Some of your revenue comes from the App Store or Google Play.
  • You want ad and creator costs set against what the people they brought have paid.

Trying Sumly next to Fathom

You do not have to choose on the first day. The two scripts can run on the same pages, and a few weeks of both is the fair way to judge.

Sumly has no import of past visits from Fathom or any other analytics tool, so its visitor history starts the day the script is added. Revenue history does not wait: it is read from your billing, up to three years back.

  1. 1Create a project in Sumly and add its one script tag next to Fathom's.
  2. 2In the EU, the EEA, the UK and Switzerland, call sumly.consent(true) once the visitor agrees. Until then Sumly counts without a cookie.
  3. 3Where you call fathom.trackEvent for a step you care about, send it to Sumly too with sumly.track('signup', { plan: 'pro' }).
  4. 4Connect your payment provider with a key that can only read, where the provider offers one.
  5. 5For a checkout made in your own code, pass sumly_visitor_id in its metadata, so each payment is traced to the visit that started it.
  6. 6Connect RevenueCat, the App Store or Google Play if you also sell in an app.

Visitor numbers in two tools rarely match exactly. Each decides in its own way what counts as a bot or a new visitor. Look at whether the trends agree.

Sumly and Fathom: questions

Is Sumly privacy-friendly like Fathom?

Sumly uses no third-party cookies and stores no IP address. In the EU, the EEA, the UK and Switzerland it sets no cookie until the visitor agrees, and counts without one until then. Raw visits are kept 25 months. Fathom sets no cookie at all, and processes visits from the EU in the EU.

Can Fathom show MRR?

Not from billing. As its docs describe it, revenue is a value in cents that your site sends with an event, and filtering by a campaign shows the conversions it brought. Sumly reads subscriptions and payments from the billing provider, so renewals, refunds and cancellations count even when nobody visits the site.

Which is better for app revenue?

Sumly reads the App Store, Google Play and RevenueCat; we did not find them on Fathom's pages. When someone comes through your site and taps its store button, Sumly ties the install to that visit: exactly on Android, as a marked estimate on iOS (a hashed IP matched within the hour). Their app payments then count for the source they first came from.

Does Sumly import my Fathom or Google Analytics history?

No. Visitor history in Sumly starts when its script is added. Your revenue history is read from your billing provider, so that part is full from the first day. Fathom can import your GA4 history, if that matters to you.

Can I run both scripts?

Yes. They do not interfere with each other, and running both for a while is the easiest way to compare.

What does each cost?

Sumly is $9 a month on Starter and from $19 on Growth, with a 14-day trial and no card. Fathom starts at $15 a month for 100,000 pageviews, with at least 50 sites, a 7-day trial that asks for a card, and no free plan, according to its site on 6 November 2026.

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