Web Analytics & PrivacyLast technical review:
Markdown for AI (.md)

Umami vs Fathom Analytics

Objective factual benchmark between two leading platforms to identify optimal fit based on scale and architecture.

Technical Verdict & Decision Factors

Umami provides an open-source, self-hostable architecture based on TypeScript, suited for teams with internal deployment capabilities. Fathom Analytics operates as a closed SaaS service, optimized for a minimal DOM footprint and managed infrastructure, eliminating the operational burden of server maintenance.

Scale-ups & Agile Teams

Choose Umami if

Umami is suitable for engineering teams requiring data sovereignty and self-hosting capabilities to minimize operational costs at scale.

Get started with Umami (opens in a new tab)
Enterprise & Compliance

Choose Fathom Analytics if

Fathom Analytics is optimal for organizations prioritizing out-of-the-box regulatory compliance and desiring to fully outsource infrastructure maintenance.

Get started with Fathom Analytics (opens in a new tab)

Key Differentiators

  • Umami supports on-premise deployments (Docker/Node.js) ensuring full data ownership.
  • Fathom Analytics uses an ultralight tracking script designed to minimize browser latency.
  • Umami includes native SQL data export for advanced analysis, whereas Fathom prioritizes UI simplicity.
  • Fathom operates on a strictly SaaS model without a free tier, facilitating predictable budgeting.
Weights 40% DX, 40% Fair Pricing, 20% PerformanceRecommended winner for this scenario:Fathom Analytics (8.7/10)
Umami7.1/10
Fathom Analytics8.7/10
Weights 45% Security & Governance, 35% Reliability, 20% DXRecommended winner for this scenario:Umami (7.5/10)
Umami7.5/10
Fathom Analytics7.5/10
Weights 55% Data Portability, 25% Fair Pricing, 20% SecurityRecommended winner for this scenario:Umami (4.7/10)
Umami4.7/10
Fathom Analytics4.6/10

Side-by-Side Feature Comparison

Umami vs Fathom Analytics
Datasheet
UmamiFreemium
Fathom AnalyticsPaid
Commercial Model & Pricing
Base PriceFree Tier$15.00/mo
Pricing ModelFreemiumPaid
Score4.5/5.0(1 review)4.5/5.0(1 review)
VerifiedVerifiedVerified tool: Audited technical attributesVerifiedVerified tool: Audited technical attributes
Core Features Matrix
Specific Capabilities for Web Analytics & Privacy
Cookieless (Native GDPR)CompatibleCompatible
Built-in Session ReplayNot availableNot available
Feature Flags / ExperimentationNot availableNot available
Direct SQL/ClickHouse ExportCompatibleCompatible
Unlimited Event RetentionNot availableNot available
Enterprise Architecture & Security (7 Universals)
REST & GraphQL APICompatibleCompatible
SSO / SAML AuthenticationNot availableNot available
Self-Hosted OptionCompatibleNot available
Full Data ExportCompatibleCompatible
Role-Based Access Control (RBAC)CompatibleCompatible
Custom Domains & SSLCompatibleCompatible
Immutable Audit LogsNot availableNot available
Architecture & Verified Specs
Compliance & Data Sovereignty
Audited Certifications
GDPR
GDPR
SSO (SAML) AvailabilityNot availableNot available
Legal Headquarters & JurisdictionUSCA
Subject to US CLOUD ActSubject (US Extraterritorial)Subject (US Extraterritorial)
Data ResidencyEU, US, SELF_HOSTEDEU, US
Open Source Telemetry & Code Sovereignty
GitHub Stars 39.8kProprietary / Closed Source
Latest Commit / VitalityOct 28, 2026Proprietary / Closed Source
SPDX LicenseMITProprietary / Closed Source
Primary LanguageTypeScriptCloud / SaaS
Minimum RAM RequiredCloud ManagedCloud Managed
Visit WebsiteTry Umami (opens in a new tab)Try Fathom Analytics (opens in a new tab)

Last technical review:

Technical Scorecard Comparison
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Technical Scorecard Comparison: Umami vs Fathom Analytics

Umami88/100
Fathom Analytics88/100
DX & Tech Documentation
Umami
90
Fathom Analytics
90
Pricing Fairness+10 pts Umami
Umami
95
Fathom Analytics
85
Security & Governance+7 pts Fathom Analytics
Umami
85
Fathom Analytics
92
Data Portability & Sovereignty+10 pts Umami
Umami
90
Fathom Analytics
80
Performance & Reliability+13 pts Fathom Analytics
Umami
80
Fathom Analytics
93

Time to Value & Fit by Segment: Umami vs Fathom Analytics

Umami

Time-to-Value:< 1 hour (Immediate)
Curve:Low (Intuitive)

Near-instantaneous deployment with minimal technical friction.

Fathom Analytics

Time-to-Value:< 1 hour (Immediate)
Curve:Low (Intuitive)

Near-instantaneous deployment with minimal technical friction.

Segment Fit Comparison

Startup & Agile Teams1 to 50 members
Umami
90%
Fathom Analytics
90%
Mid-Market & Scaleup50 to 500 members
Umami
80%
Fathom Analytics
80%
Corporate Enterprise500+ members
Umami
70%
Fathom Analytics
60%
Pricing & Licensing Breakdown
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Billing Clauses & SSO Tax: Umami vs Fathom Analytics

Umami

No SSO Documented

Does not document enterprise SAML or OIDC single sign-on support.

Free:Free tier available for self-hosting with unlimited usage or limited plans on Umami Cloud.

Fathom Analytics

No SSO Documented

Does not document enterprise SAML or OIDC single sign-on support.

  • Overage fees apply automatically if monthly pageview limits are exceeded across plans.
TCO & Savings CalculatorTCO 1-3Y
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Indie / Solo (1 active user)

Solo developer or independent technical founder.

Umami

Base Monthly Cost:$15/month
12-Month Investment:$153/year
36 Months (3 years):$459

Fathom Analytics

Base Monthly Cost:$15/month
12-Month Investment:$153/year
36 Months (3 years):$459
Estimated Financial Differential

Both tools have an identical annual cost structure for this team size ($153 USD/year).

Startup (10 active users)

Agile engineering team in validation and early traction stage.

Umami

Base Monthly Cost:$150/month
12-Month Investment:$1,530/year
36 Months (3 years):$4,590

Fathom Analytics

Base Monthly Cost:$150/month
12-Month Investment:$1,530/year
36 Months (3 years):$4,590
Estimated Financial Differential

Both tools have an identical annual cost structure for this team size ($1,530 USD/year).

Growth (25 active users)

Scaling company with team governance and granular access control requirements.

Umami

Base Monthly Cost:$375/month
12-Month Investment:$3,825/year
36 Months (3 years):$11,475

Fathom Analytics

Base Monthly Cost:$375/month
12-Month Investment:$3,825/year
36 Months (3 years):$11,475
Estimated Financial Differential

Both tools have an identical annual cost structure for this team size ($3,825 USD/year).

Scaleup (100 active users)

Established organization with enterprise security policies and mandatory SAML/SSO.

Umami

Base Monthly Cost:$1,500/month
12-Month Investment:$15,300/year
36 Months (3 years):$45,900

Fathom Analytics

Base Monthly Cost:$1,500/month
12-Month Investment:$15,300/year
36 Months (3 years):$45,900
Estimated Financial Differential

Both tools have an identical annual cost structure for this team size ($15,300 USD/year).

Usage Billing PredictabilityWhat usage costs as you scale
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Prototype / MVP (10 GB)

Comparative projection for Storage & Compute (GB)

Umami

Overage penalty:+$1/mo
Estimated Monthly Invoice:$16/mo
Low Risk

Fathom Analytics

Most Cost-Effective
Overage penalty:$0
Estimated Monthly Invoice:$15/mo
Low Risk

Base Production (50 GB)

Comparative projection for Storage & Compute (GB)

Umami

Overage penalty:+$8/mo
Estimated Monthly Invoice:$23/mo
Moderate Risk

Fathom Analytics

Most Cost-Effective
Overage penalty:+$5/mo
Estimated Monthly Invoice:$20/mo
Low Risk

Active Growth (250 GB)

Comparative projection for Storage & Compute (GB)

Umami

Overage penalty:+$44/mo
Estimated Monthly Invoice:$59/mo
High Risk

Fathom Analytics

Most Cost-Effective
Overage penalty:+$41/mo
Estimated Monthly Invoice:$56/mo
High Risk

Large Scale (1.000 GB (1 TB))

Comparative projection for Storage & Compute (GB)

Umami

Overage penalty:+$179/mo
Estimated Monthly Invoice:$194/mo
Critical Risk

Fathom Analytics

Most Cost-Effective
Overage penalty:+$176/mo
Estimated Monthly Invoice:$191/mo
Critical Risk
Bidirectional Migration Friction Index (MFI)
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Bidirectional Migration Friction Index (MFI)

UmamiFathom Analytics
Smooth Migration

Migration friction: Umami to Fathom Analytics

15/100

Agile transition with low operational risk and native export/API support.

Critical Factors Evaluated

  • +15 ptsTransition from a free or freemium model to a mandatory paid tier in Fathom Analytics.
Fathom AnalyticsUmami
Smooth Migration

Migration friction: Fathom Analytics to Umami

0/100

Agile transition with low operational risk and native export/API support.

Critical Factors Evaluated

Smooth path: native export support, ingestion API, and authentication parity.

Migration & Portability VerdictUmami · Δ 15 pts

Migrating from Umami to Fathom Analytics has significantly lower friction (15/100) than the reverse path (0/100). {from} provides easier data liberation and lower exit costs.

Technical Transition Playbook: Umami to Fathom AnalyticsCLI Runbook
4-stage execution protocol to switch dependencies with zero data loss and verifiable rollback.
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01

Data Extraction & Baseline Snapshot

Full export of Umami datasets in audited formats (CSV, JSON, SQL). Secure an immutable snapshot prior to cutover.

pg_dump
02

Schema Mapping & Contract Validation

Normalize entity identifiers, timestamps, and event payloads between Umami APIs and destination schema in Fathom Analytics.

# Schema mapping & validation
npx tsx scripts/map-migration.ts --source=umami --target=fathom-analytics
03

Dual-Ingestion Period (Dual-Writing)

Simultaneous telemetry dispatch to Umami and Fathom Analytics for 72 hours to contrast volume, integrity, and latency without downtime.

export TELEMETRY_PRIMARY="fathom-analytics"
export TELEMETRY_SECONDARY="umami"
04

Decommissioning & Rollback Safety

De-instrument Umami SDK, archive snapshot in cold S3 storage, and confirm zero ongoing billing.

# Check decommission
curl -I "https://umami.is/"

Architecture Decision Record for CTOs & Tech Leads

Production-ready technical document for Notion, Confluence, or Pull Requests

Select recommended tool:
UmamiFathom Analytics
Download ADR (.md)View Markdown
Community Sentiment & Commercial Terms
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Technical Reputation of Umami

79/100 Technical Trust

Frequent Praises in Production

  • Open-source self-hostable architecture with no license restrictions.
  • Cookie-free data collection model that simplifies GDPR compliance.
  • Unified interface for real-time web and product analytics.

Reported Production Frictions

  • Fewer advanced heatmap features compared to proprietary suites.
  • Advanced event tracking requires manual JavaScript snippet insertion.
Commercial Treatment & Vendor Lock-in:Self-Service in Dashboard

Cancellation flow is autonomous via billing portal or subscription settings.

Technical Reputation of Fathom Analytics

82/100 Technical Trust

Frequent Praises in Production

  • Strict regulatory compliance without requiring cookie consent banners
  • Ultra-lightweight tracking script that does not impact site performance
  • Unified and simplified interface compared to traditional suites

Reported Production Frictions

  • Lack of a permanent free tier for small projects
  • Limited advanced funnel analysis capabilities compared to enterprise suites
Commercial Treatment & Vendor Lock-in:Self-Service in Dashboard

Cancellation flow is autonomous via billing portal or subscription settings.

Frequently Asked Questions: Umami vs Fathom Analytics

What are the key differences between Umami and Fathom Analytics?

Umami provides an open-source, self-hostable architecture based on TypeScript, suited for teams with internal deployment capabilities. Fathom Analytics operates as a closed SaaS service, optimized for a minimal DOM footprint and managed infrastructure, eliminating the operational burden of server maintenance.

How do Umami and Fathom Analytics pricing compare?

Umami starts at 0.00/mo under freemium tier, while Fathom Analytics starts at 15.00/mo with paid billing.

When should you choose Umami over Fathom Analytics?

If your priority is Open-source web and product analytics platform focused on privacy., Umami is the optimal choice; for Lightweight, privacy-focused website analytics as a Google Analytics alternative., Fathom Analytics provides superior benefits.

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