React JS Mobile App - new feature to add to our app.

we have an existing App. we need to add 2 new features in the app side. The server side is done already. 1. text messages tab 2. Voice calls tab 3. Add image and video file sharing This is not new technology Many app already do this. And the code is available already built or you can make from new. The UI must fit our current app theme. $250 per feature. $100 to add file sharing Use our Github Account and Github AI agent if you need it. Only an experienced person can complete this in less than 1 week which is what it will normally take. Total $600