C# App with Xamarin

Sonstiges oder nicht sicher .NET Crossplatform Socialmedia App with Xamarin the API should also be in C# I could also help to program this app, because I’m Junior software deployer but I haven’t done something like that before. The app should include following features -post pics over web request to api, if the picture will be apporved from the administrator, the picture will be published to the app. -the pictures will be shown in a news feed (like instagram) -picture description -hashtags - like picture (or reachts like smiel or something) -comment picture -mark friends -own profile with bio and pic -Chat functiom -Follow function (To add friends to your friends list) -Coin function (each like you'll get on the Picture, you'll get one coin), if you have enought coins, you can order one cap or something likethath -maybe rank function (To rank up your account)