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Censys vs OneSignal

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

Censys icon
Censys
OneSignal icon
OneSignal

Censys vs OneSignal: The Verdict

⚡ Summary:

Censys: Censys is a search engine that allows users to view information on servers, websites, and devices that are connected to the internet. It provides insights into open ports, software versions, IP addresses, and more to improve cybersecurity.

OneSignal: OneSignal is a push notification service that allows developers to easily send notifications to users of mobile apps and websites. It provides SDKs for all major platforms and has a straightforward dashboard for sending messages.

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 Censys OneSignal
Sugggest Score — —
Category Security & Privacy Social & Communications
Pricing — Freemium

Product Overview

Censys
Censys

Description: Censys is a search engine that allows users to view information on servers, websites, and devices that are connected to the internet. It provides insights into open ports, software versions, IP addresses, and more to improve cybersecurity.

Type: software

OneSignal
OneSignal

Description: OneSignal is a push notification service that allows developers to easily send notifications to users of mobile apps and websites. It provides SDKs for all major platforms and has a straightforward dashboard for sending messages.

Type: software

Pricing: Freemium

Key Features Comparison

Censys
Censys Features
  • Internet-wide search engine for devices
  • Scans IPv4 space for open ports and services
  • Provides details on software versions, certificates, and more
  • API access for automated queries
  • Customizable search filters
  • Historical data on changes over time
OneSignal
OneSignal Features
  • Cross-platform push notifications
  • Segmentation and targeting
  • A/B testing
  • Analytics and reporting
  • Scheduling and automation
  • In-app messaging
  • Geotargeting
  • Rich media support

Pros & Cons Analysis

Censys
Censys

Pros

  • Comprehensive visibility into Internet-connected assets
  • Helps identify vulnerabilities and misconfigurations
  • Useful for penetration testing, network mapping, and threat hunting
  • Powerful API for integrating into workflows
  • Free tier available with generous usage limits

Cons

  • Limited coverage of IPv6 space
  • No built-in vulnerability scanning
  • Can only view limited details without a paid account
  • Data not updated in real time
  • Requires technical knowledge to use effectively
OneSignal
OneSignal

Pros

  • Free basic plan
  • Easy integration
  • Good delivery rates
  • Flexible segmentation
  • Real-time analytics
  • Well-documented

Cons

  • Limited free plan options
  • No SMS support
  • Lacks some advanced features
  • Can get pricey for high volume
  • Support could be more responsive

Pricing Comparison

Censys
Censys
  • Not listed
OneSignal
OneSignal
  • Freemium

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Learn More About Each Product

Censys
Censys
Reviews, pricing & alternatives →
OneSignal
OneSignal
Reviews, pricing & alternatives →

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