With the app installed, you get push notifications for the stuff that actually matters — event reminders, RSVP updates, time or location changes, and messages from hosts. Hosts editing an event trigger automatic guest alerts — see Will guests get notified about changes? .

No app? You're still covered. Guests without the app receive SMS updates for invites and important event changes, so nobody misses the memo.

You can tune notification preferences in your profile settings whenever you want a quieter inbox. Hosts can also send manual SMS blasts when they need everyone's attention at once.