The NPS IT/ET Departments highly recommend using the Gmail App and the Google Calendar App on mobile devices. We make this based on several factors. First, we believe the ease of set up of the apps makes this simple. Next, the user experience will more closely mimic what you get on the web. We have found it easier to manage multiple Google accounts from these apps--meaning that if you have your school Gmail/Google Calendar and your personal Gmail/Google Calendar you can have them both turned on in the app, while at the same time keeping them totally separate.