Cross-Platform POS, Inventory & Admin

I need a single POS suite that runs smoothly on Samsung (Android), Apple (iOS) and any modern web browser, then feeds consolidated data into Microsoft Power Apps for workflow extensions and Power BI for live reporting.

Core features
• Sales transactions processed at the till with barcode scanning, discounts, multiple payment types and printed or emailed receipts.
• Real-time inventory management that updates stock counts automatically after each sale, flags low levels and supports basic purchase-order creation.

User hierarchy
Cashiers should see only the sales screen and today’s totals. Admin staff need full back-office control—price changes, product uploads, stock adjustments, user management. Head-office users must be able to view every location, push global settings and analyse performance in Power BI dashboards.

Technical expectations
– Native Android and iOS front-end apps (or a solid cross-platform framework) plus a responsive web portal.
– Secure cloud database with role-based access.
– REST or GraphQL API so our existing Power Apps automations can call and update records.
– Clean data model that streams to Power BI without heavy ETL work.

Acceptance criteria
1. Cashier can complete a sale offline and sync when online.
2. Inventory count reflects the transaction instantly on all platforms.
3. Admin can adjust prices and see the change live in every store.
4. Head office dashboard in Power BI refreshes no later than fifteen minutes after data entry.
5. All user actions are logged for audit.

Deliver the compiled mobile apps, source code, database schema and a short deployment guide so my in-house IT team can take it from there.