Users can remain logged in at all times to be alerted of impending package arrivals. (They can also log in with each use to avoid prying eyes that might spoil gift surprises.)

用户可以始终保持登录状态，一旦有包裹即将到达，便能随时收到通报(当然，他们也可以只在需要使用Slice软件时才登录，避免好打听的人破坏用户安排的意外惊喜。)