Open Source Alternatives to OneSignal

A customer communication platform that orchestrates lifecycle marketing campaigns to onboard, engage, and retain users. The software enables the delivery of messages across push notifications, email, SMS, RCS, and in-app messaging. It includes AI capabilities for drafting, testing, and optimizing campaigns, as well as tools for user segmentation and analytics to help reduce churn and increase lifetime value. The platform is designed for app publishers and growth teams across various industries, including fintech and gaming. It is deployed via SDKs for Android, iOS, Flutter, React Native, Expo, and Unity, allowing for integration into existing application stacks. The system connects with analytics, customer data platforms, warehouses, and CRM tools to measure and improve lifecycle outcomes. It supports both self-service and annual contract plans for scaling message volume.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to OneSignal give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 5 open source alternatives to OneSignal. The most popular are Novu, Ntfy and Gotify. Most use the MIT or Apache-2.0 license, and 5 offer an official Docker image.