OneSignal

OneSignal is a customer engagement platform known for push notifications across web and mobile. It provides a unified system to deliver messages via push, in-app messaging, email, and SMS to engage users, re-engage dormant users, and drive conversions. It is designed for developers, product managers, and marketers, with an emphasis on ease of integration and scalability.

The platform offers SDKs for iOS, Android, and web, plus APIs and plugins for popular frameworks and content management systems. Core capabilities include push notifications, in-app messaging, and email and SMS messaging. Features include audience segmentation, automation and messaging workflows, personalization, scheduling, A/B testing, and analytics. It supports rich media, action buttons, and localization, enabling targeted campaigns across devices.

It integrates with e-commerce, content management, and marketing ecosystems through plugins for platforms such as WordPress, Shopify, WooCommerce, Magento, and Wix, and via REST APIs. It supports web push on desktop and mobile, as well as app-based notifications. It emphasizes developer-friendly onboarding and scalable performance to reach large subscriber bases.

Pricing and plans vary, with a free tier suitable for small projects and paid plans offering higher limits, priority support, and advanced features for growing teams and enterprises. It also provides self-service documentation and customer support.

OneSignal is widely adopted by developers and marketers for user engagement and retention strategies and is used by a broad range of businesses across industries. It has faced competition from other engagement platforms and continues to expand features and integrations to support cross-channel messaging.