GMAIL is one of the most usefull and best app from google in the world. It is very very usefull for me for sending messeges or letter or any type of document with safety and the concept is also superb it is very fast and lite to use it I’m glad to use it again and again and also it has great features and functions to use and it is from a great company so you can easly trust it. It is easy in use the app is also available in desktop as well as mobile phone or you can enter it through an browser also the interface is so reliable for me and very good looking also it is a very very usefull app no.1 mailing app or website or you can say software from Google.i just love it.