what is the amazon seller app is a key question for new entrepreneurs managing their business on the go. The Amazon Seller App is a mobile tool that allows users to scan product barcodes, check sales performance, manage orders, and respond to customer messages. It’s especially useful for retail arbitrage, enabling sellers to research product profitability in real time while shopping in stores. The app also notifies users of account health issues, late shipments, or urgent performance metrics. It’s an essential resource for both beginners and experienced sellers who need flexibility in operations.