I run a costume-rental shop and need a dedicated Android application that streamlines every step from check-out to return. Core needs • Invoice generation – create, store, and print/share rental invoices in a tap. • Inventory management – add new costumes, monitor stock levels, and flag low-stock items automatically. • Customer management – save customer profiles, rental history, and outstanding dues. Extra functions that matter to me • Payment gateway integration so I can accept UPI/cards directly in the app. • Reporting & analytics for daily sales, overdue returns, and best-selling items. • Notifications and reminders that alert customers (and me) when returns are due or payments are pending. Scope of work 1. Build a clean Android app (phone & 7-inch tablet compatibility). 2. Design an intuitive interface; minimal training time is critical for shop staff. 3. Implement a lightweight local database with easy backup/restore; cloud sync is a plus if it stays within scope. 4. Deliver an APK plus source code, basic user guide, and a one-hour hand-over session. Tech stack is flexible—Java, Kotlin, or Flutter—as long as performance is smooth on common Android devices. I’m ready to move quickly and will answer questions fast so development stays on schedule.