How do I delete an event attendee while in the app? On the iOS app, slide to the left and click Delete, which will then ask for your confirmation. On the Android, there is not an option to delete an attendee. Deleting attendees is not recommended in most cases. Typically you’ll want to mark the attendee as Cancelled and/or Refund their payment if applicable. Deleting the attendees removes all reference to this attendee but instead handling their cancellation will provide a method to track what happened later on.