Wechat is a social networking app. It is used for chatting and messaging. Concept of the app is not a new concept, infact it is a copied concept by other app. Hence , concept is copied and old. Design and look of the app is very bad. It looks like a very third class app. They should improve there look a lot. The problem with this app is that there are very few people who use wechat and it is very difficult to be in touch with this app. And there has been very less update in the app , hence no body got attracted towards this app and it never got publicity. The app is useless because there are very few people using it and there is no update in it. If it is improved then it is useful.