SPS Core Control

We are a product based company and we will provide the ERP System for the stone companies. So Actually we are having 200 clients and under each clients there will around 60 employee and they will be present in the different locations of the world. So i need to have the app in App store so that it can be downloaded by them easily and use it. This app is basically used by the Sales Persons and Manager of the stone company for those Customers, AR, Product, CRM and My Sales will be shown and by the information provided, they will perform the operation. The username and password will be provided by the administrator of the stone company and the system name will be stone company name.