QR-Based Mobile Diagnostic System Development

@mrresearcher99

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert

@ssquare489

I can build the Phase-1 as a genuine diagnostic proof, using only public iOS/Android APIs and no fabricated PASS results. iOS: model/OS/storage, battery level/charging, display/touch, camera, mic/speaker, motion sensors, GPS, vibration and guided checks where APIs restrict direct access. Android: device/RAM/storage, battery/charging, camera/audio, buttons, sensors, Wi-Fi/Bluetooth/GPS, vibration, biometric/NFC availability where permitted. Automatic where measurable; touch/audio/buttons/camera/lock-removal can be guided. QR contains a signed inspection/session token linking device → technician → store → timestamp. SwiftUI + Kotlin + Supabase/PostgreSQL + Next.js. Real-device validation can be performed with supplied/accessible iPhone and Android hardware. MVP: QR session, device detection, selected real diagnostics, PASS/FAIL/MANUAL/NOT SUPPORTED states, and technician results dashboard. Delivery: 4–5 days. Complete source code: Yes. Limits: iOS does not expose IMEI/serial, true battery health/cycles/temperature, unrestricted button events, or deep hardware diagnostics through public APIs. I’d structure the diagnostic result schema now so future grading, valuation, QC reports, and multi-store workflows can be added without rewriting Phase 1.

@Baghali1

Hi, I can build your **QR-based mobile diagnostic MVP in Flutter for both Android and iOS From single codebase , according to your requirements. I will implement the QR-based inspection flow, device/session detection, diagnostic tests, guided/manual tests, PASS/FAIL/WARNING results, and technician dashboard. Where platform-specific functionality is required, I can use **native Android/iOS integrations with Flutter** to access the available legitimate device APIs. I will clearly separate the tests into **Automatic, Guided/Manual, and Not Supported** based on what Android and iOS publicly allow. For the MVP, I can demonstrate the working system on **a real Android device and a real iPhone**, with real diagnostic results rather than simulated results. I will provide the **complete source code** and structure the project so it can be extended later with device grading, buyback valuation, PDF reports, multi-store management, inventory, and other features you listed. I have experience with **Flutter development, testing, API/backend integration, and Android/iOS deployment**, so I can handle the complete MVP workflow. I’m ready to start and build the MVP according to your requirements.

@rajeshrolen

Hello, I understand that you are looking to develop a QR-based mobile diagnostic system for iPhone/iOS and Android, inspired by the workflow of mobile buyback companies like Cashify. As a skilled mobile app developer with expertise in Swift for iOS and Kotlin for Android, I am well-equipped to create a seamless diagnostic software solution for your needs. Based on your detailed description, I can implement automatic tests for device information, battery health, charging status, display & touch functionalities, camera features, audio components, and other essential hardware tests. Guided tests will ensure accurate results for more complex functionalities like touchscreens, speakers, and cameras. To ensure a secure and efficient QR session, I will utilize legitimate public APIs, avoiding any security risks. I can test the MVP on real devices to guarantee functionality and provide complete source code for transparency and future enhancements. My approach involves using Swift/SwiftUI for iOS, Kotlin for Android, and considering Supabase/PostgreSQL for the backend. I am committed to delivering a high-quality MVP demonstrating the QR scan, diagnostic session, real tests, and technician dashboard within the specified budget. Let's discuss further details in a chat to address your specific requirements and technical limitations. I look forward to collaborating on this innovative project. Sincerely, Rajesh Rolen

@bhargav922002

Hello, I'm bharghav, and I bring over 10 years of experience in iOS development to help turn your vision into reality. I specialize in creating robust mobile applications, and I understand the nuances of developing diagnostic systems like the one you're looking to build. I've reviewed your project requirements thoroughly and see a clear path to completion. I will develop a QR-based mobile diagnostic system for both iOS and Android platforms. This app will facilitate seamless inspections by generating QR codes that connect the technician's input with the customer's scanning, ensuring an efficient workflow. My plan includes the development of automated and guided tests that encompass a range of device diagnostics, all while maintaining compliance with necessary security standards. I invite you to start a chat so we can dive deeper into the specifics and clarify any questions you might have. I want to ensure that the final product meets your expectations and runs smoothly across devices. Best regards, bhargav922002

@Shabansaim4277

Hi, I’m a React Native/mobile developer with 2.5+ years of professional experience, and I can help build the MVP for your QR-based device diagnostic platform. I understand that the key requirement is **real diagnostics—not simulated results**. I can build the QR → diagnostic session → device detection → test execution → PASS/FAIL/WARNING → technician dashboard workflow and clearly separate automatic, guided/manual, and unsupported tests based on iOS and Android platform limitations. For the MVP, I would focus on proving the workflow on **one real iPhone and one real Android device**, including device information, battery/charging checks where publicly supported, display/touch, camera, audio, sensors, connectivity, guided physical tests, and secure session/result synchronization. I’m comfortable working with native capabilities and APIs, and I’ll avoid private APIs, jailbreak/root requirements, or any security bypasses. I can also structure the backend so future features such as grading, pricing, PDF reports, multi-store management, and inventory can be added without rebuilding the core system. I can provide the complete source code and a working MVP within the defined scope. I’d first map the exact capabilities available on both platforms so the $50 prototype demonstrates genuine functionality rather than placeholders.

@mukunt07

I can build your QR-based mobile diagnostic MVP using Swift/SwiftUI, Kotlin, Supabase/PostgreSQL, and Next.js. The MVP will demonstrate the complete workflow: Technician creates inspection → QR generated → Customer scans → iPhone/Android detected → real diagnostic tests → PASS/FAIL/WARNING/MANUAL → dashboard results. I can implement device information, battery, charging, display/touch, camera, microphone, speaker, sensors, Wi-Fi, Bluetooth, GPS, NFC and biometric checks where public APIs allow. Restricted tests will be clearly marked manual or unsupported—no fake results, private APIs, root, or jailbreak. I can test on real iPhone and Android devices, provide complete source code, and deliver the MVP within 7 days.

@rahulk0744

As a seasoned professional in the realm of mobile software development with over 5 years of experience, and an impressive portfolio of scalable applications, I am highly confident in my abilities to produce excellent results on your QR-based mobile diagnostic system. Not only do I possess comprehensive knowledge in iOS and Android development using Swift/SwiftUI and Kotlin languages, I also have a strong command over the backend architectural needs of your application using technologies like Supabase or PostgreSQL - this will ensure seamless integration between frontend and backend, which is essential for a project with such complexity. I have worked quite a bit with QR code-based functionality and understand its intricacies thoroughly. My meticulous approach to development, combined with strict adherence to the guidelines ensures that I use only legitimate public APIs, eschewing jailbreaks or root access which could compromise the security.

@Royalitservices

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Royal IT service

@kdstechsolution

Hi, hope you are doing well! I’d love to build Phase 1 of your QR-based device diagnostic MVP. I can create the QR inspection flow, device/session detection, diagnostic screens, real test results, and a basic technician dashboard using legitimate public APIs only. I’ll clearly separate automatic, guided/manual, and unsupported tests instead of showing fake results. For the MVP, I’d suggest Swift/SwiftUI for iOS, Kotlin for Android, and Supabase for the backend. I can test the core flow on real iPhone and Android devices and provide the complete source code. I’ve worked on similar mobile app and backend projects before. We can chat and I can share some previous work and discuss which tests are realistically possible within the MVP. I’m ready to get started.

@rishus559

I Will Develop a Professional Software, Web App, or Custom Application Looking for a reliable software developer to turn your idea into a functional, secure, and user-friendly application? I can help! What I Offer Custom software development Web application development Business management systems Backend and API development Database design and integration Bug fixing and troubleshooting Feature development and improvements Third-party API integrations Responsive and user-friendly interfaces Deployment and technical support Why Choose Me? Clean, scalable, and maintainable code Responsive communication Focus on performance and security Solutions tailored to your requirements On-time delivery Post-delivery support How It Works Share your requirements and project idea. I will review the scope and recommend the best approach. We agree on features, timeline, and pricing. Development begins. You receive a tested and functional solution. Please contact me before placing an order so I can understand your requirements and provide the right package for your project.

@abdulsaboor45

Could you clarify how you envision the technician’s dashboard functioning in terms of test progress tracking? I specialize in developing mobile applications using Swift and Kotlin, and I’m confident I can build your QR-based diagnostic system. The MVP will include QR code generation, device detection, real-time diagnostics, and ensure clear PASS/FAIL results. I’ve successfully developed similar applications, focusing on secure API usage and automated/manual test integrations. For your project, I’ll implement automatic tests for model, OS, and battery status while guiding users through manual tests (like touchscreen and buttons). In the $50 MVP, you will receive a working proof of concept that showcases the complete workflow, tested on real devices, and I’ll provide the source code to ensure total clarity. The timeline for delivery will be within two weeks. Looking forward to your feedback and how we can proceed together! Best Regards, Hafiz

@hirenk09

Experienced developer offering a secure QR-based iOS/Android diagnostic MVP with real device testing, APIs, and dashboard.

@Byansanur

​Hi, I'm Ratbyansa, a Senior Software Engineer highly experienced in Android and cross-platform development. I am very interested in building your Mobile Diagnostic system for iOS and Android to thoroughly test pre-owned devices. I have deep technical expertise in interacting with hardware-level APIs required to seamlessly execute both automated and guided diagnostic tests (sensors, display, battery, audio, etc.) using Native Kotlin/Java and Flutter. I would love to connect via chat to answer the specific questions in your post and discuss the most robust architecture for this app.