CRM App to connect with an existing database

I need a simple CRM app what will connect to my customers database and pull various reports/data required. There are a lot of free apps on the app store where you can get general ideas about what this app can do. Some basic requirements: -App should be able to pull data for the existing database or a separated database which will be created just for this app purposes (Database work will not be required but if interested note that in the bid.) -Ability to import Calendar information. -Ability to generate various reports such as: Total sales, Sales rep reports, Expense report, inventory reports, sales report and employee performance etc. -Ability to enter notes -Ability to see customer details such as: Customer contact info, terms, ship to, previous orders, recent item orders and etc. -Ability to see order info such as: open orders, orders on hold, completed order, order in process and etc. You can submit a bid for just the face plate for this app or a complete functional app. I will keep refining the app all the time which will provide opportunity for more work down the line.