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Sonar vs Spreelytics

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Sonar compared with Spreelytics
DetailSonar logo SonarSpreelytics logo Spreelytics
What it doesFree website tracking checker that scans any site and reports what's really tracking, with validated findings and a scored report Google Analytics alternative with revenue attribution
StageEstablished Not given
Founded2019 Not given
Based inGB Not given
Pricing modelFree Freemium
PricingNot given Free: 100k events per month. Growth: starts at $29/month for 250k events, up to $879/month for 50M events. Annual billing: two months free. Enterprise: custom pricing for 50M+ events per month.
Key features
  • Scans GA4 presence and firing status
  • Maps Google Tag Manager containers and what they're loading
  • Detects Meta and ad platform pixels
  • Crawls dataLayer events page by page
  • Analyzes consent setup and tag interaction
  • Produces tracking health score
  • Validates findings with evidence from crawl
  • No installation or account access required
  • Revenue attribution by traffic channel
  • Realtime visitor monitoring
  • Session replay with event timeline
  • Funnel analysis
  • AI assistant for plain English queries
  • SEO data integration with Search Console
  • Bot and AI crawler detection
  • Customer journey mapping
  • Unsampled data
What makes it different
  • Scans entire website from outside, not just pages you visit
  • Covers non-Google pixels in addition to Google tags
  • No login, installation, or data access needed
  • Delivers automated first-pass tracking audit in minutes
  • Shows revenue each channel brings in, not just visitor counts
  • AI that operates your analytics via plain English or code editor
  • No data sampling at any traffic level
  • Free tier never expires and includes most features
  • Privacy-first with cookieless option and no third-party tracking
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)27 no change since last check3 +3 (up) since last check
Trust Flow (Majestic)230
Citation Flow (Majestic)2814
Referring domains (Majestic)1231

4 details filled in for both companies.

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