Develop App for Android and/or iOS -- 2

Please, bid for iOS, Android or both, according to your skills. At first, we'd like two native App, but we are opened to other options like Xamarin. Design and definition is done. All the data and functionality are provided by JSON API and webSockets (Pusher). This is going to be the first version, and it should contain: - Login screen - Main screen with four areas: 1. Candle market graphs 2. List of positions 3. History of orders in market 4. Interface to send an order - List with operations with two areas 1. Operations In 2. Operations Out - List of assets available It's the first version, therefore, flexibility is very important. Please, answer if you bid for Android and/or iOS with your thoughts about how to deploy it/them and aprox budget (hours x rate).