Hey Jake: thanks for the note! I think you’re looking for the documentation on Firebase initialization: once the user logs in, the Firebase SDK should be able to maintain an authentication session internally automatically, which lasts until the users logs out. Assuming you’re initializing the SDK, you just need to set up a listener for onAuthStateChanged(), and if you get a valid user back, you are authenticated. The docs are here https://docs.expo.io/versions/latest/guides/using-firebase/#user-authentication