Hi,
I have read and understood your project description completely, and I am interested in development of this Show case App.
1] I will develop app exactly as you with all required functions like kisok mode, show video on boot of device, show product list, show product details, all options of update and config procedure.
2] To download json from server and other functions also I can do perfectly as I will do server side code as well.
3] I will develop app with very good designs. I will develop Native Android app as it will provide best performance.
Please send me a message so that we can discuss further.
I assure you about best service with everyday communication.
Thanks,
Swapnil Chouhan