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I’m putting together a straightforward Flutter application that lets patients book diagnostic tests and track everything from one place. The same codebase must compile cleanly on both Android and iOS, so please keep platform-specific tweaks to a minimum. Core flow Users sign up or log in with their phone number; an OTP verifies them and drops them straight onto a catalogue of available tests and health packages. From there they can schedule an in-lab visit or request home sample collection, pay, and watch the status progress until the final report is ready to download as a PDF. Essentials I need delivered • Clean Flutter code (latest stable) that builds for Android & iOS • Firebase or equally reliable backend for phone-OTP auth and push/WhatsApp notifications • Booking module with date-time picker, price display and coupon placeholder • Integrated payments: Credit/Debit Card, UPI, and Net Banking via a popular Indian gateway (Razorpay or similar) • Order status tracking screen with simple colour-coded stages (Confirmed, Sample Collected, Processing, Ready) • Report repository where users can tap to view or download the PDF • WhatsApp message trigger at each status change (template messages provided) • Lightweight admin panel (web or Flutter web) for test catalogue, price edits, order overview, report upload and status updates • Basic but neat UI; I’ll hand over a style guide and logo • Build, signing and store-ready files plus a brief hand-off document Acceptance check 1. I can register, book, pay, receive WhatsApp alerts, and download a dummy report on both Android and iOS simulators. 2. Admin panel lets me add a new test and update an order without touching the database directly. 3. Payment flows succeed in test mode for the three methods listed. 4. No critical warnings in Flutter doctor; code is commented and handed over in a private Git repo. My initial budget is ₹20,000, so please structure milestones accordingly and keep external subscription costs minimal. If everything runs smoothly, I’m open to ongoing feature work later.
Project ID: 40630071
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111 freelancers are bidding on average ₹28,011 INR for this job

Hi, I am a Flutter developer with 2+ years of experience building Android and iOS applications. I can develop your diagnostic booking app with Flutter, Firebase OTP authentication, test catalogue, booking flow, payment gateway integration (Razorpay), status tracking, PDF reports, WhatsApp notifications, and admin panel. I will provide clean, scalable code, store-ready builds, documentation, and proper testing on both platforms. I focus on performance, simple UI, and maintainable architecture for future enhancements.
₹20,000 INR in 7 days
8.6
8.6

Hi, I your "Flutter Lab Booking App" project description in detail and undertood your requirements. I've worked on many PHP projects in recent times. So I am confident on achieving your expected Goals. Please initiate a communication thread to discuss further and start with the project. ⭐ 5.0/5 from a recent client: "Project was delivered before Time with Best professional Knowledge One could ever held. Thanks for the support" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹22,500 INR in 5 days
8.0
8.0

This maps cleanly to a Flutter + Firebase build I can structure in milestones to fit your ₹20,000 budget. Milestone 1: phone-OTP auth (Firebase Auth), test/package catalogue with date-time picker booking flow. Milestone 2: Razorpay integration for Card/UPI/Net Banking, order status tracker with the colour-coded stages, and the WhatsApp template trigger on each status change (via Firebase Cloud Functions + WhatsApp Business API). Milestone 3: report repository with PDF view/download, the Flutter-web admin panel (catalogue, pricing, order overview, report upload, status updates without touching the DB directly), then final QA against your acceptance checklist on both Android and iOS simulators. I'll keep external subscriptions minimal (Firebase free/Blaze tier covers this scale, Razorpay has no fixed monthly fee) and hand over commented code in a private Git repo with signed, store-ready builds and a hand-off doc. Happy to start once I have your style guide and logo.
₹19,500 INR in 25 days
7.6
7.6

Hi, The key to this project is keeping the booking journey simple for patients while giving your team an easy way to manage tests, reports, and order updates without technical effort. I'd build the platform around four core modules: Patient App, Booking & Payments, Report Management, and Admin Panel. This keeps the codebase clean while making it easy to introduce future features like doctor consultations, lab partner management, subscriptions, or health records. Using Flutter + Firebase, we can implement phone OTP authentication, push notifications, Razorpay integration, order tracking, PDF report downloads, and a lightweight admin panel with minimal infrastructure costs. WhatsApp notifications can be triggered automatically whenever an order status changes. We've developed Flutter applications, booking systems, secure payment integrations, admin dashboards, role-based platforms, and API-driven business applications. I'd be happy to demonstrate the most relevant implementations during our discussion. I can also structure the development into milestones so you receive a working MVP first, with future enhancements added as your platform grows. Regards, Avinash Jain Procode IT Services
₹25,000 INR in 7 days
7.6
7.6

Hi, I have 8+ years of experience building Flutter applications for Android and iOS, including OTP authentication, booking systems, payments, notifications, PDF reports, and admin dashboards. I can develop your diagnostic test booking app using Flutter, Firebase, Razorpay, WhatsApp integrations, and a lightweight web admin panel, with clean architecture and store-ready builds. I can structure the work into clear milestones within your initial budget after reviewing the final designs, API requirements, and WhatsApp provider setup.
₹12,500 INR in 7 days
7.2
7.2

Your WhatsApp notification trigger will fail compliance if you're using the Business API without a verified template approval process from Meta. Most developers skip this step and discover it only after launch when messages stop delivering. Quick questions - are you planning to handle PHI (patient health information) under any specific data protection framework like DISHA or will this stay outside regulated diagnostic reporting? And what's your expected concurrent user load during peak morning booking hours? Here is the architectural approach: - FLUTTER & FIREBASE: Single codebase with Firebase Auth for OTP, Firestore for real-time order sync, and Cloud Functions to trigger WhatsApp Business API calls at each status transition without exposing credentials client-side. - RAZORPAY INTEGRATION: Server-side payment verification using webhooks to prevent order manipulation; Flutter SDK handles UPI/card/netbanking flows while your backend confirms settlement before marking orders paid. - ADMIN PANEL: Flutter Web dashboard with role-based access, direct Firestore writes for catalogue updates, and Cloud Storage signed URLs so admins upload PDFs without database edits or FTP access. I've built similar health-tech booking systems for 2 diagnostic chains that now process 500+ daily appointments. Let's schedule a 20-minute call to walk through your compliance requirements and milestone breakdown before you commit the budget.
₹22,500 INR in 7 days
6.7
6.7

Having spent the last 8 years specializing in mobile app development and with over 200 successfully delivered projects under my belt, I am highly confident in my ability to deliver a Flutter lab booking app that perfectly aligns with your vision. The need for clean, scalable and secure code that compiles seamlessly on both Android and iOS is a primary focus for me, making sure that your users receive the same high-quality experience regardless of their device. To make your booking app function smoothly, you need a stable backend, and Firebase has proven time and again to be reliable in tandem with phone-OTP auth and push/WhatsApp notifications. I am adept at integrating crucial features like payment gateways, order tracking, status updates, and report repository- all of which you have clearly mentioned as essential deliverables. Rest assured that there will be no compromises here. This isn't just about delivering the app within your budget but also about building long-term partnerships for future feature and maintenance work. My ongoing support coupled with my commitment to business-focused solutions is an added advantage you wouldn't want to overlook. Let's turn your idea into reality together!
₹27,500 INR in 7 days
6.4
6.4

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹20,000 INR in 7 days
6.6
6.6

Hi there, Hope you are doing well I'd love to develop your Flutter Lab Booking App for Android and iOS. Our team has extensive experience building healthcare and diagnostic booking applications with secure OTP authentication, online payments, real-time order tracking, PDF reports, and admin dashboards. We'll build a scalable Flutter application with Firebase integration, Razorpay payments, WhatsApp notifications, order tracking, report management, and a responsive admin panel. Our focus is on clean architecture, maintainable code, smooth UI/UX, and complete deployment support. Recommended Tech Stack Mobile App: Flutter (Latest Stable) Backend: Node.js (NestJS) / Firebase Functions Database: Firebase Firestore / PostgreSQL Key Features Phone Number Login & OTP Verification User Registration & Profile Diagnostic Test & Health Package Catalog Search & Filter Tests Lab Visit & Home Sample Collection Booking Date & Time Slot Selection Coupon & Discount Support Razorpay Payment Integration (UPI, Cards, Net Banking) Real-Time Order Status Tracking WhatsApp Status Notifications Push Notifications PDF Report Viewer & Download Booking History Admin Dashboard Test & Package Management Price Management Order & Status Management Report Upload & Management Analytics Dashboard Responsive Flutter Web Admin Production-Ready Code with Deployment Support Looking forward to working with you. Thanks & Regards, Dheeraj K.
₹25,000 INR in 7 days
7.2
7.2

I read your job post, As an experienced full-stack developer, I bring to the table a myriad of skills that I believe make me perfectly suited for your Flutter lab booking app. I have a deep understanding of mobile app development, as evidenced by my past projects, including those on both Android and iOS platforms. I excel in integrating payment gateways, and can certainly connect your app to Razorpay or any gateway of your choice with ease. Moreover, my background in GHL funnels and WhatsApp automation will prove advantageous in setting up seamless WhatsApp message triggers and backend OTP authentication via Firebase. I understand the importance of a clean codebase that works smoothly on all platforms. My proficiency in n8n automation and AI chatbots will come in handy here, optimizing the booking module and enabling push notifications for easy tracking of test status - from samples collection to PDF report availability. Lastly, I'm committed to delivering not just on time but above expectations. Throughout our journey together, I will ensure your satisfaction with frequent updates and transparent communication. Overall, my proficiency in mobile app development, real-time communication infrastructure
₹25,000 INR in 20 days
6.1
6.1

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
₹12,500 INR in 10 days
6.7
6.7

Dear Client, I read "Flutter Lab Booking App" carefully and understand you want a single Flutter codebase that runs smoothly on both Android and iOS. My hands-on experience with PHP, Mobile App Development, Android, iOS Development, Payment Gateway Integration, Flutter aligns directly with what you need. I've shipped Flutter apps from scratch to store launch — clean architecture, smooth animations, native-feeling UI and solid API integrations — that stay easy to maintain as features grow. A few quick questions to get us started: 1. Do you need Android, iOS, or both from day one? 2. Are UI designs ready, or should I design the screens as well? 3. Is there an existing backend/API, or should I build that too? Thanks & Regards, Deepak
₹24,375 INR in 14 days
5.8
5.8

As someone who has worked extensively with cross-platform frameworks for over 5 years, I am confident in my ability to develop your Flutter Lab Booking App. I understand the importance of building clean, stable code that compiles seamlessly on both Android and iOS while minimizing platform-specific tweaks. In addition, my experiences with backend integrations and payment gateways will ensure that all the functionalities you need for your app such as phone-OTP auth, PDF report repository, order status tracking screen, and integrated payments will work effectively. Regarding backend, I'm highly skilled in using Firebase which will be a reliable choice for phone-OTP authentication, push/WhatsApp notifications and secure data storage. To make administering the app easier for you, I can create a lightweight admin panel compatible with either web or Flutter web interfaces for managing test catalogues, prices, order overview and report uploads.
₹25,000 INR in 7 days
6.3
6.3

Hi, I can build your diagnostic booking app in Flutter for both Android & iOS with a single clean codebase. I can deliver: • Phone OTP login with Firebase • Test catalogue & booking for lab/home collection • Razorpay payments (Card, UPI, Net Banking) • Order status tracking & WhatsApp notifications • PDF report viewing/download • Lightweight admin panel • Clean UI, scalable architecture & commented code • APK/IPA builds, Git repo & documentation I recommend **Flutter + Riverpod/Bloc + Firebase + REST API + Razorpay** for a reliable and scalable MVP. I can work within your **₹20,000 budget** and structure the project into milestones. Ready to start immediately.
₹20,000 INR in 7 days
5.5
5.5

A patient booking platform succeeds when the journey is effortless—from OTP login to booking, payment, status tracking, and report delivery. The priority is building a reliable workflow that patients can trust while giving your team a simple admin panel to manage tests, pricing, and reports without touching the database. My approach is to develop the app in Flutter using a single codebase for Android and iOS, backed by Firebase for phone OTP authentication, notifications, and secure data management. I'll implement a searchable test catalog, booking flow with lab/home collection options, date-time selection, pricing, coupon placeholder, Razorpay integration for Cards, UPI, and Net Banking, and a color-coded order tracker. A report repository will allow users to view or download PDFs, while WhatsApp template messages will be triggered automatically as order statuses change. I'll also build a lightweight web admin panel for managing tests, prices, bookings, report uploads, and status updates. The project will be delivered through milestone-based development, keeping within your ₹20,000 budget while minimizing third-party subscription costs. You'll receive a private Git repository, signed builds, store-ready files, and complete handover documentation. Before we begin, I'd like to confirm one detail: will WhatsApp notifications use the official WhatsApp Business API, or do you already have a provider such as Twilio, Gupshup, or Interakt that you'd like to integrate?
₹27,500 INR in 15 days
5.8
5.8

Hi, I can build your Flutter diagnostic booking app with one clean Android/iOS codebase, OTP authentication, test/package catalogue, lab & home collection booking, Razorpay payments (Card/UPI/Net Banking), live order-status tracking, PDF reports, and WhatsApp notifications. I’ll also deliver a lightweight admin panel for tests, pricing, orders, statuses and reports. I’ll follow milestone-based development, provide store-ready builds, documentation and private Git handover. I can work within your ₹20,000 target by prioritising the MVP scope.
₹20,000 INR in 7 days
4.9
4.9

As an experienced mobile app developer with a specialty in Flutter and React Native, I am well-equipped to handle and excel at your lab booking app project. With over 8 years of experience, I have successfully delivered numerous high-performance, cross-platform applications like the ones you require, including healthcare-oriented apps. In fact, one of my notable projects, PresCrypto, closely aligns with your project as it too involved doctor-patient interactions and secure data management. Moreover, my expertise extends to API integration and backend development using Node.js, Firebase or MySQL which ensures reliable phone-OTP authentication and push/WhatsApp notifications as essential for your app. My familiarity with popular Indian payment gateways like Razorpay adds value to the integrated payments feature you mentioned. Additionally, I am well-versed in deploying apps to both App Store and Play Store, making me capable of providing store-ready files. By selecting me for your project you can benefit from timely delivery of clean code tailored for both Android & iOS platforms along with comprehensive documentation for easy hand-off. I believe strong communication and transparency is crucial in any successful project which is why I offer frequent progress updates throughout the process. If given the opportunity, I am eager to collaborate and bring your vision of a streamlined medical lab booking and tracking app to fruition!
₹30,000 INR in 5 days
4.9
4.9

Hello, We've built Flutter healthcare, booking, and appointment applications and can develop your Diagnostic Test Booking App within your budget and timeline. Ready to start immediately! We'll Deliver: ✅ Flutter App for Android & iOS ✅ Firebase OTP Login & Push Notifications ✅ Diagnostic Test Booking & Home Collection ✅ Razorpay Payment Integration (UPI, Cards & Net Banking) ✅ Order Status Tracking & PDF Report Download ✅ WhatsApp Status Notifications ✅ Admin Panel for Tests, Orders & Report Management ✅ Clean, Responsive UI ✅ Store-Ready Builds, Source Code & Documentation Why Us? ✔ Experienced Flutter & Full Stack Development Team ✔ Expertise in Healthcare & Booking Apps ✔ Budget-Friendly Pricing ✔ Fast Delivery & Long-Term Support Let's discuss your project and start development ASAP. Best regards, Neha
₹20,000 INR in 7 days
5.7
5.7

Hi, We can build your Flutter-based diagnostic booking application with a clean, scalable architecture for both Android and iOS from a single codebase. We’ll develop phone OTP authentication, test catalogue, booking flow, home sample collection, payment integration with Razorpay, order tracking, WhatsApp notifications, PDF report access, and a lightweight admin panel for managing tests, orders, and reports. Our focus will be on smooth UX, secure API integration, reliable performance, and delivering store-ready builds with proper documentation and source code handover. Let’s connect to discuss milestones and finalize the development plan within your budget.
₹22,000 INR in 7 days
4.8
4.8

Hi, I have read your project description and am ready to start immediately. I can build your Flutter app for Android and iOS with phone OTP login, test booking, Razorpay integration, order tracking, PDF reports, WhatsApp notifications, and an easy-to-use admin panel. Tech Skills: Flutter, Dart, Firebase, Laravel, Node.js, REST APIs, Razorpay, Firebase Auth, FCM, MySQL, PostgreSQL, Git/GitHub, AWS, and Flutter Web. Question: Is the ₹20,000 budget fixed, or is there flexibility based on the final feature scope? Thanks, Ravinder
₹20,000 INR in 7 days
4.4
4.4

Solapur, India
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