Developer for mobile App with web-based admin

I have a client who is building a scheduling app for his staff. I have attached the SOW for the project. A wireframe is being built right now that you can also reference once complete. IN ORDER TO BE CONSIDERED 1. explain what technology you will use to build the app, specify PhoneGap, Xamarin 2. Explain that you understand this is a FIRM FIXED bid within the scope of work attached. 3. Estimate a DELIVERY DEADLINE 4. start your bid with the word "Shiny"