Build me an application -- 2

Hi i m Mobile app programmer, So your android application that connects people in real time it must include the chat and calling option which is only available when permission is given ok this all Feature add your app and any Feature app So tell me any time So How Can help You Sir,

Hello sir, we're a expertise team of developers and designers! Revert me back so we can discuss more about the same!

Greetings, I am Tushar , A young mobile and web developer who rather works for passion. With prior 3+ years experience in android development, I can serve you at the best. I came up with project description and realised that you require a chat with call feature application.I can build up the project for you. For this project I will use Firebase Firestore database, and Firebase for management of database. I can provide you demo for this application prior you give me whole project. With my knowledge and skills , I am sure I will prove this deal worth while to you. Thanks and Regards