Hi, My Bid is only for Android mobile application development and back end required for the app in Mysql and PHP. I have quite a strong knowledge working with Android and Web technologies. However, You need to provide me the cost for database Server, hosting, cost for chat sdk or sms gateway etc or if any such functionalities. I know integrating sendbird and applozic chat sdk integration. I ensure You an on time delivery. I hopw we would be working together soon. Thanks.