A practical overview - Fathom analytics vs Flowsery ecommerce
Two privacy-first analytics platforms compared, which delivers more value in 2026?
Last updated: April 2026
TL;DR
Fathom Analytics is a well-established privacy-first analytics platform with enterprise-grade infrastructure, forever data retention, and support for up to 50 sites. However, it has no free tier, plans start at $15/month for 100k pageviews. Flowsery has no free plan either: you get a 14-day free trial, then one Pro plan at $500/month with built-in funnel analysis and goal tracking with conversion paths. Fathom includes ecommerce tracking, event tracking, and API access on all plans. Choose Fathom if you need enterprise-grade reliability with forever retention and don't mind paying from day one. Choose Flowsery if you want funnel analysis, session recordings, and a lightweight script with zero maintenance.
Feature Comparison
Feature | Flowsery | Fathom Analytics |
|---|---|---|
Privacy Compliance | GDPR, CCPA, PECR compliant, no cookies | GDPR, CCPA, ePrivacy compliant, no cookies |
Free Tier | No, 14-day free trial | No, starts at $15/month (30-day free trial) |
Goal Tracking | Built-in with conversion funnels | Event-based goal tracking |
Funnel Analysis | Yes, multi-step funnels included | No, not available |
Custom Events | Yes, included in Pro plan | Yes, included in all plans |
REST API | Full API access on Pro plan | Full API access on all plans |
Self-Hosting | Cloud-hosted only | Cloud-hosted only |
Script Size | < 10 KB | ~ 2 KB |
Real-Time Dashboard | Yes, live visitor view | Yes, live visitor view |
Where Flowsery Wins
Free Trial Before You Pay
Flowsery gives you a 14-day free trial with no credit card, then one Pro plan at $500/month. Fathom has no free plan either, only a 30-day free trial before you must pay $15/month.
Funnel Analysis
Flowsery includes multi-step funnel analysis to track user journeys through signup flows, checkout processes, and onboarding. Fathom does not offer funnel tracking at any price point.
Lighter Script
Flowsery's tracking script is under 10 KB, making it one of the lightest on the market. Every kilobyte matters for Core Web Vitals and page load performance.
Everything In One Plan
Flowsery has a single Pro plan at $500/month that includes 1M analytics sessions, 100k session recordings, and unlimited websites, with usage-based pricing above that. Fathom's plans start at $15/month, so Fathom is cheaper for a small site.
Where Fathom Wins
Forever Data Retention
Fathom retains your analytics data forever on all plans. Flowsery keeps five years of history on the Pro plan.
Enterprise-Grade Infrastructure
Fathom has invested heavily in enterprise-grade infrastructure with proven uptime and reliability at scale. They've been serving high-traffic sites since 2018.
All Features on Every Plan
Fathom includes ecommerce tracking, event tracking, API access, and up to 50 sites on their base plan. No feature tiers to navigate, you get everything from the start.
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Want a 14-day free trial before you pay anything
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Need funnel analysis and conversion path tracking
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Prefer a sub-10 KB script for maximum page performance
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Want a managed cloud solution with zero maintenance
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Need forever data retention from day one
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Want all features included on a single plan tier
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Prefer an established platform with enterprise-grade infrastructure
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Need ecommerce tracking and event analytics out of the box
Frequently Asked Questions
Try Flowsery Free
Privacy-first analytics with funnel tracking and goal conversion. 14-day free trial, no credit card, then $500/month.