App for reading Bar and QR Codes

This solution has to have 2 parts: Client (app installed in celphone) and Server Client (app) Requirements - It must be able to read bar and QR codes - Everytime user reads a Bar/QR code, the system will compare this code to a local base (ex: DB or XML) and will sum quantities read for specific items, following this logic: > If item scanned is part of local base, a counter is incremented > else, message is shown ("This item is not part of our database") - Total counters of items can be uploaded to the server on demand - User must be able to see anytime: Items and counter for this item Server requirements: - Using a simple web interface, admin can manage items that will be shared with clients (including, updating name, deleting). - This management will 'create' a new base, that will be downloaded by clients (their local base will be updated then). - This admin must be able to see all existing clients with their counters for their items