Email app is the client for GMail site loaded in a browser that works on Windows PC, Tablet, Phone and Hololens. Just login once and select Remember me/Keep Signed in check box while login. Then no more logins required. Disclaimer: This is not official app for GMail. Our app in no way claims to be affiliated to, associated with, or sponsored by GMail. All of images, icons, copyrights, and assets are property of Google Inc.