Simple Messager has complete functions, such as the system's messaging application, in addition, the application also provides many additional features, such as sending messages with emoticons, MMS ... High security mode, supports various features, the system's default application does not App supports all devices Youthful design style, can also change the background color to meet your interests, Most mobile phone manufacturers build their own messaging applications with specific branded user interfaces. The Nexus 5 also deletes messages and currently includes Google Hangouts instead. Installing this application allows all Android 4.1+ owners to use the classic SMS / MMS application from Google. Note: If you disable the default messaging app, the system that comes with your phone-the u003e app, no other SMS app will work. You need to leave the messaging app installed with your phone and activate other messaging apps to work, otherwise you will encounter errors sending and receiving messages.