S
SaaS Decision
⚡ Head-to-Head Deterministic Intelligence

Fathom HQ vs Plausible

Comprehensive deterministic comparison evaluating decision scores, pricing models, replacement difficulty, and open-source alternatives for 2026.

Analytics

Fathom HQ

Starting PriceFree

Fathom HQ is a modern analytics & data software solution designed to streamline digital workflows and boost operational efficiency.

Verdict:SELF HOST
Full Fathom HQ Review ↗
Analytics & Reporting

Plausible

Starting Price$9/mo

Lightweight and open-source Google Analytics alternative with 100% privacy compliance.

Verdict:SELF HOST
Full Plausible Review ↗
Deterministic Decision Engine

Side-by-Side Decision Scores Matrix

Evaluated using pure deterministic algorithm scoring across retention, migration savings, self-hosting viability, and build complexity.

Evaluation MetricFathom HQPlausible
Primary VerdictSELF HOSTSELF HOST
KEEP Score (Retention Value)
62/100
48/100
SWITCH Score (Migration Savings)
81/100
88/100
SELF-HOST Score (OSS Viability)
100/100
100/100
AUTOMATE Score (Workflow Parity)
75/100
100/100
BUILD Score (Custom In-House Feasibility)
35/100
35/100
Engine Confidence98%60%
Build Complexity (1 - 5)3 / 52 / 5
API & Webhook Availability4 / 54 / 5
Vendor Lock-in Risk2 / 51 / 5
Data Portability Score4 / 55 / 5
Cost Structure Analysis

Verified Pricing Tiers Comparison

Fathom HQ Pricing Tiers

Free Tiermonthly billing
Free
Pro Planmonthly billing
$15/mo

Plausible Pricing Tiers

Growthmonthly billing
$9/mo
Businessmonthly billing
$19/mo
Zero License Fees

Self-Hostable Open Source Options

Fathom HQ Open-Source Options

PostHog24k★

Open-source product analytics, session recording, and feature flags.

Plausible Analytics20k★

Simple, open-source and privacy-friendly web analytics.

Plausible Open-Source Options

Plausible Self-Hosted18.5k★

Open-source web analytics platform.

Umami21.4k★

Fast, privacy-focused open-source analytics.

Head-to-Head FAQs

Frequently Asked Questions: Fathom HQ vs Plausible

Which tool is easier to migrate or build custom?

Fathom HQ has a build complexity of 3/5 and API availability of 4/5. Plausible has a build complexity of 2/5 and API availability of 4/5.

Should I choose Fathom HQ or Plausible?

If you prioritize retention value and deep integrations, Fathom HQ leads with a KEEP score of 62/100. If you are looking to switch or optimize costs, review their secondary verdicts and open-source alternatives above.