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Head-to-head · Intrusion Detection and Prevention Software

Snort vs Zscaler Cloud IPS

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Snort #7 in Intrusion Detection and Prevention Software 8.4/10 Free plan Free plan✓ 3 of 4 features Visit Snort
Zscaler Cloud IPS #9 in Intrusion Detection and Prevention Software 8.2/10 Pricing on request ✓ 3 of 4 features Visit Zscaler

Snort leads on 0 checks, Zscaler Cloud IPS on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSnort · 8.4/10
  • Free planonly Snort

Snort scores higher on our rubric for intrusion detection and prevention software: 8.4 against 8.2 out of 10; our editors rank them #7 and #9.

On deployment model, Snort gives you Software where Zscaler Cloud IPS offers Cloud. On supported platforms, Zscaler Cloud IPS gives you Cloud where Snort offers Linux.

Snort is the better fit for linux teams seeking low-cost Snort-based detection. Zscaler Cloud IPS is the better fit for cloud IPS for distributed user traffic.

  • Snort fits best

    Linux teams seeking low-cost Snort-based detection

  • Zscaler Cloud IPS fits best

    Cloud IPS for distributed user traffic

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Side by side

Feature Snort 8.4/10 Visit ↗ Zscaler Cloud IPS 8.2/10 Visit ↗
At a glance
Editor score 8.4 8.2
Ranking #7 in Intrusion Detection and Prevention Software #9 in Intrusion Detection and Prevention Software
Best for Linux teams seeking low-cost Snort-based detection Cloud IPS for distributed user traffic
Pricing model Free plan + paid Paid
Starting price $29.99/device/yr Pricing on request
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Self-hosted Cloud
Platforms Linux Web
Support Community, Docs, Tickets, Email Phone, Tickets, Docs · 24/7
Built for Solo, Small business, Mid-market, Enterprise Enterprise
Features Snort 3/4 · Zscaler Cloud IPS 3/4
Inline blocking ✓ ✓
Encrypted traffic inspection ✓ ✓
Cloud workload support Not checked yet Not checked yet
Threat intelligence ✓ ✓
Specs
Deployment model Software Cloud
Network scope Network Network
Supported platforms Linux Cloud
Our review
Pros
  • Free core engine and Community Ruleset
  • Inline traffic blocking with configurable detection rules
  • Packet, PCAP, and SSL/TLS inspection capabilities
  • Always-on protection regardless of user location or connection type
  • Inline anomaly detection with signature- and policy-based enforcement
  • SIEM, SOAR, and XDR integrations support security operations workflows
Cons
  • Deployment is focused on Linux self-hosted environments
  • Rule subscriptions add annual per-sensor costs
  • Configuration and deployment are handled by the user
  • Pricing requires contacting sales rather than showing numerical prices
  • The listed platform is web only
  • 24/7 support is limited to selected support offerings
Our verdict

Snort is an open-source network intrusion detection and prevention system from Cisco. It monitors network traffic, analyzes packets with configurable rules, generates alerts for detected malicious activity, and can operate inline to block…

Read the review →

Zscaler Cloud IPS is a cloud-delivered intrusion prevention service for organizations that need traffic inspection and threat prevention across distributed users, applications, and internet connections. It filters traffic through Zscaler’s…

Read the review →
  1. SnortIntrusion Detection and Prevention Software 8.4Free plan
  2. Zscaler Cloud IPSIntrusion Detection and Prevention Software 8.2Pricing on request

Strengths and trade-offs

  • Snort — where it wins

    • Free core engine and Community Ruleset
    • Inline traffic blocking with configurable detection rules
    • Packet, PCAP, and SSL/TLS inspection capabilities

    Where it doesn't

    • Deployment is focused on Linux self-hosted environments
    • Rule subscriptions add annual per-sensor costs
    • Configuration and deployment are handled by the user

  • Zscaler Cloud IPS — where it wins

    • Always-on protection regardless of user location or connection type
    • Inline anomaly detection with signature- and policy-based enforcement
    • SIEM, SOAR, and XDR integrations support security operations workflows

    Where it doesn't

    • Pricing requires contacting sales rather than showing numerical prices
    • The listed platform is web only
    • 24/7 support is limited to selected support offerings
  • Snort8.4/10 · Free plan

    A low-cost Snort engine with inline blocking and flexible packet analysis.

    Visit SnortFull verdict →
  • Zscaler Cloud IPS8.2/10 · Pricing on request

    A cloud IPS for distributed users with inline detection, TLS inspection, and security integrations.

    Visit ZscalerFull verdict →

More comparisons

All intrusion detection and prevention software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update