A High-Level Comparison
Firebase is a good fit for technical teams with simplistic use cases and who have dedicated engineering resources for continuous manual campaign management.
However, most companies need their messaging to do more or are strapped for dev resources. That’s how we’re different. OneSignal aims to streamline your messaging workflow across teams and departments. We combine powerful no-code tools (from segmentation to automation and testing), a fast and unlimited API, and top-notch support. And those are just a few of the reasons OneSignal is a G2 Leader for best usability and easiest setup.
For over 2M apps, OneSignal is a better choice. For more information, see our detailed blog post.