# Push Notifications Gravity comes bundled with everything you need to start sending push notifications - saving you hours of headache. Users who sign into your app for the first time will be prompted to enable push notifications. If they accept, a push token is stored on the server for that user. Gravity supports multiple devices per user. ## Sending Push Notifications Please refer to the [Push Notifications section of the Gravity Server documentation](/gravity-server/push-notifications.md) to learn about sending push notifications from the server. ## Expo or Firebase? Expo has a push notification service to send notifications immediately without any additional setup. However, you can also incorporate [Firebase](https://firebase.google.com) into your app and send push notifications with Firebase instead if you prefer. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.usegravity.app/gravity-native/push-notifications.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.