NexBook AI | Voice Booking React Native App

NexBook AI — Voice Booking React Native App

NexBook AI is a production-ready, commercial-grade appointment booking ecosystem designed for modern salons, luxury spas, wellness centers, barbershops, and aesthetic clinics. The complete platform unites an autonomous conversational AI Voice Booking Agent (@ai-agent), a high-performance React Native Customer Mobile App (built on the latest Expo SDK), an interactive Super Admin Web Portal & Real-Time POS Register (React 19 / Vite / Tailwind CSS v4), and a centralized Node.js Express TypeScript REST API with live Socket.io bi-directional synchronization, Stripe PaymentSheet integration, and automated push notifications.

⭐ Key Highlights & Commercial USPs

• ️ Autonomous Conversational Voice AI Concierge: Multi-turn spoken booking agent powered by Groq Cloud (openai/gpt-oss-120b) and LangGraph. Automatically extracts services, specialists, dates, and times from natural voice speech and prepares bookings in under 15 seconds.
• Interactive Real-Time POS Register & Walk-In Billing: Dedicated Point of Sale terminal for front-desk staff to handle walk-ins, apply custom percentage or fixed discounts, select specialists, take split cash/card payments, and generate 80mm thermal receipts.
• Stripe Payment Gateway & Native Mobile PaymentSheet: Full support for online prepayments, 25% booking deposits, Apple Pay, Google Pay, card elements, and cryptographic signature-verified Stripe webhook listeners.
• Multi-Channel Push & In-App Notifications: Real-time Expo push notifications sent directly to customer devices on booking confirmation, status changes, and payment completions, accompanied by live Socket.io admin sound alerts and HTML email receipts.
• Staff Roster, Shift & Vacation Leave Management: Configure specialist working hours, buffer times between treatments, and manage staff leave requests with automatic live calendar blocker enforcement.
• Universal React Native Mobile Experience: Built with the latest Expo SDK and NativeWind / Tailwind CSS v5, featuring animated bottom sheets, haptic feedback, service search filters, and digital QR appointment check-in passes.
• ️ Pre-LLM Security Guardrail Shield: Built-in input shield that blocks prompt injections, jailbreaks, gibberish, and off-domain chatter before reaching LLMs — saving 100% token costs on non-booking interactions.
• Executive Revenue Analytics & Financial Reporting: Live financial metrics including Gross Revenue, Completed Bookings, Specialist Performance Metrics, and downloadable CSV invoice reports.
• Zero-Code Dynamic Rebranding: Salon administrators can dynamically upload custom business logos and favicons stored on Cloudinary CDN directly via the Admin Dashboard without rebuilding or redeploying code.