I run a small sand-delivery startup in Bihar—Shyam Baba—that currently operates 10 trucks and serves 15 regular customers. I need a lightweight, cross-platform mobile solution that keeps ordering and dispatch simple even when the network drops. Scope of work You will create three tightly-integrated interfaces from a single Flutter or React Native code-base so I can publish on both iOS and Android with minimal extra effort. • Customer App – Order placement, live rate viewing and a quick look-up of past orders. • Transporter (Driver) App – Instant order receipt plus delivery confirmation by scanning a QR code at the customer site. – A basic delivery history screen for the drivers’ reference. – UI must stay clean and readable for users who may be handling the phone in bright sunlight or dusty conditions. • Admin Web Panel – Real-time GPS tracking of every truck on the road. – A revenue dashboard that lets me slice totals by day, truck and customer. Key technical requirements – Offline mode: all three interfaces should cache critical data and sync automatically once a connection returns. – WhatsApp backup: every completed delivery must push a concise message (or file) to a dedicated WhatsApp number so I always have an external log. – Code must be clean and modular so I can scale beyond the pilot fleet without a rewrite. Acceptance criteria 1. I can install test builds on my own devices and see orders flow end-to-end in under 10 seconds on 4G and still complete in a no-network scenario once connectivity is restored. 2. A QR confirmation instantly updates the customer’s order status and triggers the WhatsApp backup. 3. The admin panel displays live truck locations with a refresh interval below 15 seconds. Hand-over items • Source code with clear setup notes. • Deployed builds (APK/IPA or TestFlight link) plus admin panel URL. • Brief video walkthrough showing each workflow. If this sounds like your kind of project, let’s get started—I’m ready for the first prototype build.