OneSignal

OneSignal is a customer engagement platform that enables businesses to build and manage multi-channel messaging campaigns. It allows teams to deliver push notifications, email, SMS, RCS, Live Activities, and in-app messaging across web and mobile platforms. The platform is designed for developers, product managers, and lifecycle marketers looking to automate onboarding, engagement, and retention.

The platform provides journey orchestration tools to trigger automated workflows based on user behavior and real-time events. Teams can segment audiences using custom attributes, conduct A/B testing, and track delivery and conversion analytics. OneSignal also offers an AI agent and an MCP server, allowing teams and AI assistants to generate message copy, query analytics, and execute campaigns using natural language.

Key features

• Multi-channel messaging: Delivers notifications across mobile push, web push, email, SMS, RCS, in-app messaging, and iOS Live Activities.
• Journeys workflow builder: Creates automated visual cross-channel messaging flows triggered by user actions or dynamic rules.
• Audience segmentation: Groups users based on behavioral data tags, custom events, and engagement metrics.
• OneSignal AI and MCP server: Provides AI tools and Model Context Protocol support to draft messages, analyze performance, and trigger workflows via prompts.
• Cross-platform SDKs: Supports native and cross-platform development environments including Android, iOS, Flutter, React Native, Expo, and Unity.
• Integrations ecosystem: Syncs data with data warehouses, analytics platforms, CRMs, and customer data platforms like Snowflake, HubSpot, and Segment.