We need android and IOS Flutter application for inventory

This is the Billing & Inventory Management with POS
Please check all the modules

Making android and IOS flutter application
and send me the Quotations

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Invobilling Application modules

1- Parties –
1. Customers
2. Supplier
2- Sales –
1- Sales
2- Sales Resturn /Cr.note
3- Payment in
4- Quotation / Estimate
3- Purchase –
1- Purchase
2- Purchase return / Dr.Note
3- Payment Out
4- Stock Transfer
5- Stock Adjustment
6- POS
7- Expenses-
1- Expense Category
2- Expenses
8- Report
1- Payment
2- Stock Alert
3- Sales Summary
4- Stock Summary
5- Rate List
6- Product Sales summary
7- Users Reports
8- Profit & Loss

9- Shortcut modules as per website

Kindly Focus the POS modules