Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
If you have this issue when you go through the browser this is actually a glitch that I have seen on a lot of sites, not sure why it happens. Try this trick, click on the URL bar like you are going to enter a new address, you should get the keyboard popup. then click back in the text box you want to type in and you should see the popup keyboard.
The clients are just that, mail clients. They are faster, easier to use and more secure that doing email via the browser.