Hi
Hope you are doing great!!
I have read your project details and we are sure to provide you with best android app like amazon
We will met all your 5 requirements mentioned without any queries
For server and charges details, you have to come into chat box
We have a team and we mainly deal with Web Designing and development, App development, cloud computing, bulk sms service and other IT operations
You can see our previous projects over chat
Looking forward to hear from you
Thank You
Regards, Abhishek