The online chat application is great but it costs a lot of money to be online and you have to charge your phone battery more than two times a day, so we developed "Offcial Blue Chat application". Our project is to develop an android chat application based on Bluetooth connection to reduce the battery usage and make the communication with people around you easily without the need to be online, without charge. Our application allow the users around Bluetooth connection area to communicate with each other by sending free text messages, share real-time images by capture an image using camera or choose from the gallery, and file-share among the application without the need of close the application and send files such as images, videos, mp3, zip, etc.