Cross-Platform QR Payment App

@AwaisChaudhry

Hi there, You're asking for a cross‑platform QR payment app with a single user role, live on Android and iOS, with login via PHP REST API and MySQL, a history screen, and end‑to‑end QR handling and store submission. I’ll cover the full stack: mobile app (Flutter or equivalent), QR reading and data parsing, secure login, three PHP endpoints (login, fetchHistory, addScan), and a MySQL schema ready for your fields. I’ll implement HTTPS, server‑side password hashing, and token‑based sessions, and I’ll ensure the UI is simple: scan, review, confirm, and sync instantly to the database without restart. The project will also include Google Play submission, test builds, screenshots, and privacy documentation to meet policy requirements. I’ll deliver a robust, well‑tested app with clean code, clear API contracts, and predictable history updates on confirmation. Do you have a preferred authentication flow (JWT vs session tokens) and token expiry? Are there staging URLs and production domain details ready, or should I set them up? Are there any specific QR data formats or validation rules I must enforce before accepting a scan? Any required privacy policy or store listing details I should include (screenshots, data usage, permissions)? Do you have branding guidelines (colors, fonts) or should I propose a default UX? Best regards,

@OutsourceMan

With nearly two decades in the industry and a multitude of satisfied clients, CnElIndia brings an invaluable wealth of experience to your QR payment app project. Our technical proficiency spans key technologies essential to executing your project seamlessly—from database design (MySQL) to mobile development (Flutter), REST API integration, PHP, and even the demanding task of ensuring cross-platform compatibility. Crucially, we understand and appreciate the paramount importance of security and privacy in your project. Drawing on our extensive knowledge about authentication protocols, encryption techniques, and secure data transfer, we guarantee that all traffic will be through HTTPS and user passwords hashed server-side. In addition to technical dexterity, our team is characterized by a steadfast commitment to meeting deadlines and adhering to budgetary constraints. This is why clients like you trust us with their projects from conception to completion. Let's work together in creating your desired app—one that seamlessly scans codes, updates the remote database instantaneously, and showcases the scan history without disruptions—resulting in an end product that meets all acceptance criteria and garners swift approval from both Google Play and Apple Store.

@a4logic

Hello, As a leading web service provider, I believe my team and I have the perfect skillset to handle your cross-platform QR payment app project. With years of experience in Android and mobile app development, we are well-equipped to use Flutter or similar cross-platform stacks to ensure your app runs seamlessly on both Android and iOS. We have a proven track record of developing secure, user-friendly apps that not only meet the client’s requirements but also exceed their expectations. In terms of the specific functionalities you need, we are familiar with QR-reading, data parsing, and API integration. Our PHP REST API expertise will guarantee a secure credential check for your users while pulling data from and pushing new scans into the MySQL database. We will ensure the data transfers between the app and server use HTTPS encryption and passwords are hashed securely on the server-side. Moreover, our familiarity with Google Play submission and store policies will ensure a smooth process from development to final approval without any policy violations. By choosing us, you can be assured of a comprehensive service that includes not just the technical development aspects but also managing privacy documentation, test builds, screenshot creation, and everything necessary to make your app live. Thanks!

@softsolution2000

I've thoroughly reviewed the requirements for the Cross-Platform QR Payment App project. With my expertise in PHP, Mobile App Development, Android, Software Testing, and MySQL, I am confident in delivering a high-quality solution. I am willing to adjust the budget according to the project scope and prioritize completing it within your budget. Please go through my profile with 15 years of experience to see my work. Your satisfaction is my top priority, and I am ready to start working on the project immediately. Looking forward to discussing the details with you.

@om26er

Hello, i have very rich experience developing QR Code Scanner Applications using MLKit Library. i need to discuss features of the app in detail and i have few queries. i am a mobile applications developer and i have more than 8 years of experience developing mobile applications. i have done more than 520+ projects either local or internet based. i am confident i will provide you quality software services on time. Let's chat to proceed.

@diektech

Hi, This is Elias from Miami. I checked your scope and I understand the app: Flutter iOS+Android, single user role, login against your MySQL via PHP REST, then a history list of confirmed QR scans (date/time, supplier name/address, amount). User scans a new QR, reviews parsed fields, taps Confirm, and it saves to MySQL and appears in history instantly. HTTPS only, server-side hashed passwords, and I handle Play/App Store submission under your accounts. Plan: build Flutter UI + QR scanner + parsing/validation, create PHP endpoints (login, history, create scan), secure with HTTPS, token session, rate limiting basics, and tight error handling. Then TestFlight + internal testing, screenshots, privacy text, and store submissions. Timeline: 3–5 weeks for MVP + submissions, assuming API access and QR format are stable. Q1: What’s the exact QR payload format (JSON, delimited string, URL), and is supplier data always embedded or sometimes needs lookup by supplier_id? Q2: After login, do you want a token-based session (JWT) or simple PHP session token, and should the app support “stay logged in”? Q3: Any offline requirement (queue scans until online), or can we require connectivity for Confirm? Regards.

@divumanocha

With over 12 years of experience as a freelancer, my team and I at CodeNomad have mastered the skills needed to create your cross-platform QR payment app. Our expertise using Flutter and similar cross-platform stacks, combined with our deep knowledge in Mobile App Development, MySQL and PHP makes us an ideal fit for this project. We've created numerous apps that require authentication and database integration similar to what you're looking for including using REST APIs and we understand the importance of secure credential checks. Our proficiency in Mobile Development allows us to fully understand what you're looking for - a fast and seamless performance that ensures updating the remote database and viewing the scan history doesn't require restarting the app. In terms of security, encrypting all traffic using HTTPS, hashing passwords server-side is well within our realm of skills. We guarantee that all development will adhere strictly to your acceptance criteria. Thanks.....

@corpmember29

FULLY FUNCTIONAL CROSS-PLATFORM QR SCANNER APP I am an experienced Flutter developer and can deliver your Android & iOS QR-scanning app end-to-end. Your app will: Login & Authentication: Secure username/password check via PHP REST API with hashed credentials over HTTPS. Scan History: Fetch and display all previous scans (supplier, date-time, amount) from MySQL immediately after login. QR Capture & Confirmation: Camera-based QR scanning, data parsing, review, and instant submission to the database. Backend Endpoints: PHP REST APIs for authentication, fetching history, and recording confirmed scans. Database: MySQL schema integration provided, optimized for fast queries and safe data storage. Deployment: Full setup for Google Play & App Store, including test builds, screenshots, privacy documentation, and successful first submission. Deliverables: Cross-platform Flutter app (iOS & Android) with all flows implemented PHP REST APIs fully tested Live connection to MySQL with secure, real-time updates Deployment-ready builds and handoff documentation I guarantee clean, maintainable code and a smooth, production-ready launch.

@SBITServices

Hi Laurent, To develop the Cross-Platform QR Payment App, I propose using Flutter for mobile development to ensure seamless functionality on both Android and iOS. The app will include QR code scanning, data parsing, secure authentication via a PHP REST API, MySQL database integration for storing scan history, and Google Play submission. Let's discuss further to ensure all requirements are met. Regards, Sai Bhaskar

@DeveloperStation

Hi there, We’ve developed several mobile apps that use QR codes for login and payment workflows, including a wallet app that lets users scan QR codes to pay for services. We also built a web app for service providers to manage their offerings and view transaction history. For your project, we can use a combination of Flutter and native code to ensure the camera and QR scanning features work seamlessly across both Android and iOS. We’ve worked extensively with PHP and MySQL, so we can create a secure REST API for user authentication and manage the entire backend infrastructure. Let’s schedule a 10-minute call to discuss your project in more detail and see if I’m the right fit for your needs. Best, Adil

@Kartoos

Hi, I can deliver you the app and the backend (PHP and MySQL) within a day...I have developed multiple such apps that scan QR code and update the record in database and list in the history. lets start...thanks

@ZohaibRoy

⭐⭐⭐⭐⭐ Build a User-Friendly Mobile App for QR Code Management ❇️ Hi My Friend, I hope you are doing well. I’ve reviewed your project details and see you are looking for a mobile app that runs on both Android and iOS. You don’t need to look further; Zohaib is here to help you! My team has completed 50+ similar projects for mobile app development. I will create a secure and efficient app that allows users to log in, view their QR code history, and scan new codes seamlessly. ➡️ Why Me? I can easily build your mobile app as I have 5 years of experience in mobile development, specializing in Flutter and MySQL integration. My expertise includes QR code scanning, API development, and user interface design. Additionally, I have a strong grip on PHP and database management, ensuring smooth functionality throughout your app. ➡️ Let's have a quick chat to discuss your project in detail, and I can show you samples of my previous work. I look forward to discussing this with you! ➡️ Skills & Experience: ✅ Flutter Development ✅ Mobile App Design ✅ QR Code Scanning ✅ PHP REST API ✅ MySQL Database Management ✅ User Authentication ✅ Data Parsing ✅ UI/UX Design ✅ Google Play Submission ✅ Secure Coding Practices ✅ HTTPS Implementation ✅ Debugging and Testing Waiting for your response! Best Regards, Zohaib

@seefattechnologi

SURE, I have evaluated the project description and highly able to complete it -----------I am a Mobile Application developer having 7 years of work experience with the expertise of React native/Xamarin/ Flutter/ Java and Kotlin (android) /Swift and objective (iOS )/ XML and Android XML Layouts (Android)/ Interface Builder and Storyboards (iOS). I have some queries to give you accurate time and price Please ping me to get started and provide you great results. Thanks

@kareemmaize

Hi - I can deliver this end to end as a clean, single-role mobile app with a simple backend that does exactly what you described and nothing extra. I d build the app in Flutter so Android and iOS stay in sync. After login, the app pulls scan history from your PHP API and renders it instantly. The scan flow will be tight and predictable: open camera -> read QR -> parse supplier and amount -> show a clear confirmation screen -> push validated data to the API -> update history live with no restart. On the backend, I ll keep the PHP REST API small and secure: login with hashed passwords, endpoint for history fetch, endpoint for new scan inserts, all over HTTPS. QR payloads will be validated server-side so malformed or tampered codes never get stored. I ll handle Play Store submission under your account, including test builds, screenshots, and policy checks so the first release goes through cleanly. You’ll get the Flutter source, PHP endpoints, and a short setup note so future changes are straightforward. If this direction aligns, we can discuss in detail in chat.

@sgrocean37

You’re building a single-role mobile app where authenticated users scan QR codes, confirm details, and sync everything to a MySQL backend in real time. The real risk here isn’t QR scanning — it’s making the login, sync, and store submission flow solid enough that nothing breaks at approval or in daily use. I would build this as a Flutter app for Android and iOS, backed by a clean PHP REST API connected to your existing MySQL schema. Login would use secure, hashed credentials over HTTPS, with dedicated endpoints for scan history and new scan submissions so updates appear instantly without app restarts. Execution covers: mobile UI for history and scan confirmation, QR parsing and validation, PHP API implementation, MySQL integration, real-time refresh after confirmation, and full Play Store submission under your accounts with required assets and privacy setup. I’ve shipped cross-platform apps with QR workflows, PHP/MySQL backends, and first-pass store approvals. First 24–48 hours: lock API contracts, set up the Flutter project, and deliver login + history flow against your database. Ready to take ownership and get this live. Sagar P.

@khurshid040462

Hi there, I’m excited about your project for a cross-platform QR payment app! With my extensive experience in mobile development, particularly using Flutter, I am confident in building a seamless user experience from login to transaction history. I will implement secure REST API checks for authentication and ensure robust MySQL integration for storing the scan details, supplier information, and payment amounts. The app will provide a user-friendly interface for scanning and confirming QR codes, updating the database in real time, while maintaining high standards of security with HTTPS and hashed passwords. I’ll manage the entire development process, including Google Play submission, ensuring compliance with store policies. I’m ready to start right away and expect to complete the project in approximately 4-6 weeks. What timelines are you considering for getting started?

@alimumtaz112

Hi, It will be an honor for me to work with you. I have got 12 years of mobile application development experience (iOS, android and flutter). Lets discuss this in detail and get this started. Looking forward to hear from you.

@hireageek

Hi there, I’m excited about your Cross-Platform QR Payment App project! With my extensive experience in mobile development, particularly with Flutter, I am well-equipped to deliver the simple yet functional application you envision. I understand your need for a seamless user experience where users can log in and immediately access their scan history while keeping everything secure with hashed passwords and HTTPS traffic. Having developed similar applications, I can ensure that the QR reading and data parsing features work flawlessly alongside robust PHP REST APIs for smooth communication with your MySQL database. I guarantee efficient development and submission processes to both the Google Play Store and App Store, complete with necessary documentation. Let’s work together to bring your app to life! Please feel free to message me right away with any additional details or questions you might have. What specific design elements or user experience features are you envisioning for the app's confirmation UI?

@Herculesz

Hi I can help you to build this cross-platform QR confirmation app end-to-end, including the Flutter mobile app, the PHP REST API, the MySQL integration, and store submissions for both Google Play and iOS. The main technical risk here is making login + scan submission secure and reliable (especially when QR payloads vary), so I’ll implement strict QR parsing/validation, server-side verification, and an idempotent “confirm” flow so users don’t accidentally create duplicates. I can help you to deliver a clean Flutter UI with a history screen (pulled instantly after login), a scan → review → confirm flow, and real-time refresh so new confirmations appear immediately without restarting. On the backend, I can help you to build PHP endpoints for auth, history retrieval, and scan ingestion, using HTTPS, prepared statements, and hashed passwords (bcrypt/Argon2) with token-based sessions after login. I can also help you to package the app properly for both stores, including screenshots, test builds, privacy disclosures, and review-safe permissions for camera access. The result will be a simple, single-role app that’s fast for users and straightforward for you to maintain. Thanks, Hercules