Build an Online Pos and sync with Apk file to sell

hello we want to create one retail pos online and linked with one apk apps that can menage stock,user,sales,store, and show inventary in real time, sales detail etc, the sales, import and returned products proces can made from apk file that can sync with her database in online , here can check and show details and repport. for example: 1- sing up with email adress on website of online retail pos 2- open user and store like User A ( menage products) user B ( Cashier), Store A that can sync and menage products they are import from app linked with Store A and Store B that can sync and menage products they are import from app linked with Store B. 3- install app on Android devices, login with User A or B, link the Store A,B,C,.. for menage their products. 4- create new category, new products ( put barcode of products, name of products, details, Sales prices, baying prices, promotion prices if quantity is 3,4,5 ect), import or receive products ( insert exist barcode to find exist products, put quantity of receive stock and optionals if new price has update can add new prices.) 5- on sales options on search options put the barcode or name of products and fid fast the products. but when show the product for example, barcode =11111 and product name = charger, and stock=22, when i put barcode on search options 11111, below find and show the product charger(22) the 22 is the stock quantity avilable in retail store. on attach are the database and photo details that needed. for more detail we can talk on chat menu here. we only pay the milestone here no out of freelancer dont ask me to pay out of freelancer. Below the requirement details of project. Ideal for * RETAIL - Fashion retail shop, clothing. - Franchise business (franchisor and franchisee) - Food Counter, Coffee Shop, Cafe and Restaurant - Consignment Counter in Department Store - Event and Exhibition Shop - Retail with multiple branches - Small and Medium retailer * DISTRIBUTION - Salesman Order Taking - Canvasser The current release of iREAP POS (Point of Sale) PRO covers the following: - Supported languages: English, Indonesian and Russian. - Cashier or point of sale, support sales return - Automatic data synchronization across multiple stores - Dashboard, report and data analytic on the web - Manage multiple users and stores with easy to use interface - Support transaction Hold and Recall for Sales. This features will be useful for cafe or restaurant business. - Record customer and history transaction - Scan Barcode using front Camera - Printing receipts, with Wifi and Bluetooth Printer - Inventory Control: Goods Receipt, Good Issue, Stock balance - Inventory Transfer Request - Support Receipe/Formula for Food Business - Inventory Cost with Standard and Moving Average Calculation Method with profit analysis report - Master Data Management, item category and import from CSV - Graphics Reporting - Email Reporting - Design for tablet on cashier module - Integration to SAP Business One - Integration to [login to view URL] Learn more detail about iREAP POS Pro on [login to view URL] Keyword: POS Multi Store Point of Sale with inventory modules Mobile Cashier for Micro Business POS for Cafe, Restaurant Cash Register