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Keycloak vs OneSignal

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

Keycloak icon
Keycloak
OneSignal icon
OneSignal

Keycloak vs OneSignal: The Verdict

⚡ Summary:

Keycloak: Keycloak is an open source identity and access management solution. It handles authentication, authorization, and user federation and makes it easy to secure applications and services. Keycloak provides out-of-the-box support for popular protocols like OpenID Connect, OAuth 2.0, and SAML 2.0.

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 Keycloak OneSignal
Sugggest Score — —
Category Security & Privacy Social & Communications
Pricing Open Source Freemium

Product Overview

Keycloak
Keycloak

Description: Keycloak is an open source identity and access management solution. It handles authentication, authorization, and user federation and makes it easy to secure applications and services. Keycloak provides out-of-the-box support for popular protocols like OpenID Connect, OAuth 2.0, and SAML 2.0.

Type: software

Pricing: Open Source

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

Keycloak
Keycloak Features
  • Single sign-on
  • Identity brokering and social login
  • User federation
  • Client adapters
  • Admin console
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

Keycloak
Keycloak

Pros

  • Open source
  • Easy integration
  • Flexible and customizable
  • Robust access management capabilities

Cons

  • Steep learning curve
  • Complex configuration
  • Limited native reporting capabilities
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

Keycloak
Keycloak
  • Open Source
OneSignal
OneSignal
  • Freemium

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Learn More About Each Product

Keycloak
Keycloak
Reviews, pricing & alternatives →
OneSignal
OneSignal
Reviews, pricing & alternatives →

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