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GlassWire vs ZoomInfo

Professional comparison and analysis to help you choose the right software solution for your needs.

GlassWire icon
GlassWire
ZoomInfo icon
ZoomInfo

GlassWire vs ZoomInfo: The Verdict

⚡ Summary:

GlassWire: GlassWire is a free network security monitor and analyzer for Windows that visualizes network activity and alerts users to suspicious connections. It tracks bandwidth usage and shows open ports and connections to help identify threats.

ZoomInfo: ZoomInfo is a software as a service (SaaS) platform that provides companies with business-to-business data to identify prospects, enable sales and marketing automation, and provide intelligence on customers. It combines powerful data and AI to fuel growth.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature GlassWire ZoomInfo
Sugggest Score — —
Category Security & Privacy Business & Commerce

Product Overview

GlassWire
GlassWire

Description: GlassWire is a free network security monitor and analyzer for Windows that visualizes network activity and alerts users to suspicious connections. It tracks bandwidth usage and shows open ports and connections to help identify threats.

Type: software

ZoomInfo
ZoomInfo

Description: ZoomInfo is a software as a service (SaaS) platform that provides companies with business-to-business data to identify prospects, enable sales and marketing automation, and provide intelligence on customers. It combines powerful data and AI to fuel growth.

Type: software

Key Features Comparison

GlassWire
GlassWire Features
  • Real-time network monitoring
  • Firewall to block unwanted connections
  • Alerts for suspicious activity
  • Bandwidth usage monitoring
  • Port scanning detection
  • Shows applications using internet
  • Network history and logging
ZoomInfo
ZoomInfo Features
  • Contact database of over 200 million business people
  • Lead enrichment to append missing data to contacts
  • Email tracking to see who opened/clicked emails
  • CRM and marketing automation integration
  • Chrome extension for prospecting on LinkedIn
  • Company profiles and org charts
  • Predictive lead scoring
  • Customizable sales workflows

Pros & Cons Analysis

GlassWire
GlassWire

Pros

  • Free version available
  • Easy to use interface
  • Provides useful network insights
  • Can identify potential threats
  • Good for monitoring bandwidth usage

Cons

  • Limited features in free version
  • Can be resource intensive
  • May flag legitimate connections as suspicious
  • No web interface
  • Windows only
ZoomInfo
ZoomInfo

Pros

  • Massive database of prospects
  • Great for sales prospecting and outreach
  • Lead enrichment saves time
  • Powerful integration options
  • Easy to use Chrome extension
  • Helpful company intelligence
  • Lead scoring to prioritize outreach
  • Custom workflows to optimize sales process

Cons

  • Very expensive compared to competitors
  • Limited free plan options
  • Contacts not always up-to-date
  • Email tracking seen as spammy by some
  • Slow and clunky interface
  • Steep learning curve
  • Chrome extension is hit or miss
  • Workflows can be complex to build

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Learn More About Each Product

GlassWire
GlassWire
Reviews, pricing & alternatives →
ZoomInfo
ZoomInfo
Reviews, pricing & alternatives →

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