I’m rolling out a smart water-level monitoring and auto-refill solution and need a partner who can take it from concept to live deployment. The vision is an intuitive mobile app—built for both iOS and Android—that talks directly to IoT sensors sitting in a customer’s rooftop or underground tank. Those sensors will connect over Bluetooth and Wi-Fi, feeding the app with live data so users always know exactly how much water remains. Here’s the user journey I have in mind: after a simple on-boarding flow in English or Arabic, the customer sees a real-time dashboard that shows current percentage, historical trends, and health statuses for every linked tank. When the level dips below a configurable threshold, the app must push a notification and automatically trigger a tanker request, including secure in-app payment. From installation through automation, the experience needs to feel effortless. What I’m expecting from you • A complete design system and polished UI/UX that translates seamlessly across both languages • Native or high-performance cross-platform development for iOS and Android • Reliable sensor integration over Bluetooth and Wi-Fi, with adjustable polling intervals • Cloud backend, database, and API layer to manage user accounts, tank data, alerts, and payments • Real-time push notifications for threshold breaches and order updates • App store deployment and a brief hand-over so my team can maintain future releases If you’ve delivered IoT-driven apps before—especially ones that juggle live telemetry, payments, and bilingual interfaces—let’s talk timelines and milestones.