Basic AppSheet Order Approval

I want a very lightweight AppSheet solution that lets our employees submit purchase orders and gives our accountant a simple way to approve or reject them. The app only needs two data tabs—each capped at about 80 rows—so the structure stays compact and easy to maintain... (Budget: ₹600 - ₹1500 INR, Jobs: App Development, Database Management, Google Sheets, HTML, JavaScript, Mobile App Development, PHP, Software Architecture)