The concept of shareit is new but let me tell you one thing it steals your personal information like contacts, photos , videos and save on their server. The personal information they saved can sell for some other websites for marketing activities. The layout and design is good. As it sends your data by means of wifi connection the data sending speed is much more as compared to bluetooth. If you have installed this on your phone then it will continue reading your calls and messages. Today it becomes a useful tool but be aware it saves your personal information on their server.