Cross-Platform Event QR Scanner

@shyamvijaywargiy

Hello , Nice to meet you! I will design and develop EVENT QR CODE mobile application with web admin panel according to your requirement , ping me on chat so we can discuss this more. I am expert and 9 years experienced Android /iPhone app developer with backend work that you are looking for. I will provide you perfect product as you want so you would be happy with it. I am always ready to discuss about your project in detail as well as start from right now. The following are my services that i provide :- 1. Daily or Weekly update. 2. Clean and Robust code. 3. Responsible for communication for more than 15 to 20 hours each day. 4. Free Bug-Fix support for 1 year after completion. 5. Source code delivery. You can have a look at my profile by this link : https://www.freelancer.com/u/shyamvijaywargiy Let's contact me to discuss further details with me. Thanks Shyam

@corpmember29

HELLO, >>>> Multi languages (English and Arabic)Left-To-Right (LTR) and Right-To-Left (RTL) <<<< I’ve reviewed your requirements for the Cross-Platform Event QR Scanner and fully understand the scope: a production-ready mobile app for iOS and Android that scans QR codes, authenticates users, and retrieves attendee data securely from your REST API. With 10+ years of experience in Flutter, React Native, Swift, and Kotlin, I can deliver a fast, secure, and responsive app meeting all performance and security criteria. WE HAVE WORKED ON SIMILAR PROJECTS AND CAN PROVIDE EXAMPLES. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. My approach: • Tech Stack: Flutter for cross-platform efficiency, secure HTTPS with token-based headers. • Milestones: login & session handling → camera/QR scanner integration → backend API calls & attendee display → UI/UX polish → testing & release builds. • Performance & Security: first scan ≤2s on mid-range devices, encrypted API calls, persistent sessions, proxy-tested security, compliant with Apple & Google camera permissions. • Deliverables: installable builds, full source code with documentation, UI assets, README, and build/deploy instructions. I can start immediately and deliver a fully functional release-candidate for both platforms. I eagerly await your positive response. Thanks, Christina

@diektech

Hi, this is Elias from Miami. I’ve reviewed your project — you need a production-ready mobile app for iOS and Android that scans event QR codes, authenticates users, and retrieves attendee data securely from your REST API. I can deliver a high-performance, cross-platform solution (Flutter or React Native) with fast, reliable QR scanning, token-based authentication, and secure HTTPS communication. The app will present attendee profiles in a clean, branded UI, handle persistent sessions, and follow Apple/Google camera guidelines. A few clarifying questions: Q1: Should the app support offline scanning with queued uploads if connectivity drops, or strictly live API calls only? Q2: Do you have a preferred state-management approach (Redux, Provider, Riverpod, etc.), or is that open? Q3: Are there any additional attendee details (images, tickets, notes) that must render instantly post-scan, or only basic profile info? I can structure milestones for login & session, QR scanning flow, API integration, UI polish, and TestFlight/Play Store-ready builds. Full source code, documentation, and Figma-style assets will be delivered so future enhancements are simple. Regards, Elias

@softsolution2000

I have extensive experience in Mobile App Development, iPhone, Android, Objective C, and Swift, making me a great match for the Cross-Platform Event QR Scanner project. The budget can be adjusted after discussing the full scope, and I am committed to completing the project within your budget. I am confident and eager to start working on this project. Please go through my profile with 15 years of experience to see my work history. Your satisfaction is my priority, and I am ready to discuss the job details. I am prepared to begin working on the tasks to demonstrate my dedication to this project. Looking forward to your response.

@idefcoinfotech

Hi there, I have a few questions based on the shared description: 1) Do you prefer a specific framework for the app? 2) Will the QR codes follow standard formats or custom encoding? I can build a high-performance mobile app for iOS and Android that scans event QR codes, authenticates users securely, and retrieves attendee information instantly. With 8+ years of experience, I deliver production-ready apps with clean UX/UI, fast camera scanning, and secure API integration. Why I’m a Fit: - Skilled in Flutter, React Native, Swift, and Kotlin for high-performance cross-platform apps. - Fast and reliable QR code scanning with under 2-second attendee retrieval. - Secure API integration using token-based HTTPS requests. - Robust credential login with persistent session management. - Intuitive, on-brand UI/UX design for seamless user experience. - Fully compliant with Apple and Google store guidelines. Please open the chat so we can continue the conversation! Warm regards, Idefco Note: The price is just a placeholder.

@mobiappsoftware

Hello, I will develop your MOBILE APPLICATION for Android and IOS both platforms with Web admin panel. I am Tulsiram. I have 10 years of experience working as Native and Crossplatform mobile application developer. I am understood your requirements. I am glad if we are working together. If you interested then let's connect. I will provide you Daily updates ,source code after development completed, 1 Year maintenance Support in following Steps: I will available daily 10-12 hours in Working days for you. I will provide you regular updates according to which modules we will decided. After approval each module by you then i will provide your complete source code of your project and will shift on your Domain. Thanks

@malviyamanish

As an experienced cross-platform mobile app developer with a solid background in QR scanning and API development, I am well-equipped to bring your vision of a seamless event QR scanner app to life. I leverage my 10+ years of iOS and Android development experience, including advanced skills in technologies like Flutter, Swift (iOS), Kotlin & Java (Android), to deliver reliable and high-performance solutions. Regarding security, I understand the threat unencrypted API calls can pose to sensitive client data. With a proven track record of creating secure solutions, I will ensure that all API calls in your app are encrypted using strong HTTPS protocols and that no unauthorized access is possible, even under hostile network conditions. Speed and efficiency are paramount in any app. Thus, it's vital that the app remains quickly responsive even on mid-range devices. In line with this, I guarantee your Scan-to-Attendee journey will be under 2 seconds for optimal convenience. My proficiency with advanced frameworks such as Flutter ensures top-notch performance, whether natively or cross-platform developed.

@ciss26

Hello there Hope you are doing well as you are looking for a "Build a EVENT QR SCANNER MOBILE APPLICATION " so will make the same as you want , I have already develop and Design the so many Application , - I will use latest technology to develop your Application - I will share daily update with you - I Will deliver your project within timeline - After project completion will share complete source code - I will provide 1 year support our develop work - I have 10+ year experience in Web & App development - I will make the 100% responsive design , fast loading , SEO friendly and all - I will provide you super admin panel there you can manage the whole thing Please initiate the chat so will discuss together and all Thanks & Regards Dheeraj K.

@LiveExperts

Hello, As a highly-skilled and experienced developer, I am confident that my team at Live Experts®, can successfully deliver your Cross-Platform Event QR Scanner project. We have extensive expertise in mobile app development for both iOS and Android platforms using a wide range of frameworks including Swift, Kotlin, Flutter, and React Native. We understand the importance of building clean and reliable camera integration to ensure quick and accurate scans. Rest assured, we will tirelessly work towards achieving a ≤2 second scan time on mid-range devices as per your acceptance criteria. Moreover, the issue of security is paramount to us too. With precise attention to detail and strict adherence to your JSON schemas and secure API calls, we will ensure that your app remains robust against any unauthorized access or tampering with data transfers. As requested, our deployed solutions would comply with Apple & Google's strict camera permission guidelines; I can also guarantee encrypted communication over HTTPS during all data transfers. To add one more perk to our proposal, we are proficient in creating user-friendly designs and interfaces. Your app will not only have an attractive on-brand UI but also includes all necessary features such as login, onboarding, scan flow, QR-scan/manual guest selection options, success & error states to create a seamless user experience. Furthermore, we will provide thorough documentation on our architect Thanks!

@Arunmohan001

Hi, I can build your production-ready QR scanning app for both iOS and Android exactly as per your requirements — secure login, fast QR recognition, API integration with token-based headers, and a clean on-brand UI. I’ve developed multiple mobile apps with secure REST APIs, camera modules, and fast scanning flows, so I can deliver this within your timeframe and budget. I will provide: • Dual-platform mobile app (iOS + Android) • Reliable QR scanning (≤2s scan-to-profile) • Secure credential login + session handling • HTTPS + token-based API integration • Polished UI (login, onboarding, scan flow, success/error screens) • Release-candidate builds + deployment guide I can complete the full project within your budget range. Would be happy to discuss the technical details and start immediately. Thanks!

@a4logic

Hi, Hope you are well, We have best team in our company, We can give you good quality work on time Regards

@DeveloperStation

Hi Boff, We’ve developed multiple event management apps with features like QR code scanning, user authentication, and backend integrations. One of our recent projects, called ‘Convo,’ involved scanning QR codes to authenticate users and retrieve attendee data from the backend. We also built a dedicated admin panel for managing events and users, which could be beneficial for your project. For this project, I recommend using Flutter for its cost-effectiveness and ability to deliver a fully native experience. We can also use native libraries for specific features, ensuring optimal performance. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit. I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best, Adil

@eliaa

Hello! I’m reaching out from Smart Sols, a software company with over 9 years of full-stack development experience. We specialize in mobile app development using Flutter, which is perfect for building high-quality, production-ready cross-platform apps for both iOS and Android. We fully understand your need for an efficient event QR scanner app, and our Flutter expertise ensures smooth performance and consistent UI/UX across platforms. We also use Figma for UI/UX design to guarantee an intuitive and engaging user experience tailored to your event scanning requirements. Our team is confident we can deliver a robust, scalable app that meets your expectations within your budget. We’d be thrilled to discuss your project further and provide timely delivery with top-notch results. Thank you for considering Smart Sols for your project!

@hireageek

Hi there, I am excited about the prospect of creating a cross-platform mobile app that meets your detailed specifications. As a top California freelancer with extensive experience in both iOS and Android development, I specialize in building responsive applications using Flutter and React Native. I understand the importance of delivering a robust QR code scanning feature, ensuring quick access to attendee profiles, and maintaining strict security protocols through token-based authentication. With my expertise in API integration and UI/UX design, I can guarantee a seamless experience for users. I will ensure the app fulfills your performance criteria, including achieving under 2-second scan results, while adhering to encryption standards and best practices for API calls. I’m eager to discuss your project further and share a milestone timeline that I believe will optimize our collaboration. What specific design elements or branding do you want to incorporate into the UI to align with your event's identity? Thanks,

@marcoc7

Hello Mate!Greetings Boff A., Good evening! I’ve carefully checked your requirements and really interested in this job. I’m full stack developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Objective C, iOS Development, Android, Mobile App Development, Flutter, Swift, React Native, Kotlin, iPhone and API Development. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Talk to you soon

@toriquldev123

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam

@VianRey1

Dealing with unreliable QR scanning and slow authentication at live events can create headaches and bottlenecks for your team, especially when attendee info must load instantly and securely from your API. If scan-to-profile takes too long or API traffic isn’t watertight, the whole check-in experience suffers and risks compliance issues. You can expect a fast, polished mobile app that scans QR codes in under two seconds, always authenticates users via secure HTTPS, and presents attendee details in an on-brand interface—ready for real-world event use on both iOS and Android. First, I’ll use a high-performance cross-platform framework with robust camera integration and token-based session handling. Next, I’ll ensure every API request is encrypted, validated, and follows your JSON schemas precisely. After that, I’ll deliver clean UI assets and builds ready for store testing, with clear deployment instructions. What are your preferences for the UI style guide format or collaboration on brand assets?

@johnallenvillan1

Hey Client, I am an experienced mobile app developer specializing in cross-platform solutions. I will build a top-notch QR scanner app for both iOS and Android, ensuring fast QR code recognition, secure data transmission, and a user-friendly interface. By using Flutter, I will deliver a high-performance app with clean UX/UI design, credential-based login, and seamless API integration. Let's discuss the project specifics and timelines further.

@Alizakhani32

Hello there, I will develop your QR-based event scanning app for both iOS and Android using a high-performance cross-platform solution like React Native or Flutter. The app will include secure login, fast QR scanning, encrypted API calls, and a clean UI to show attendee data right after scan. I always follow best practices for security, form validation, and smooth performance on real devices. I suggest creating a modular architecture with token-based authentication, persistent sessions, and a scanning flow optimized to return results within 2 seconds as required. I will provide full source code, build files for TestFlight & Play Console, and documentation with all setup details. Before starting, could you please confirm which framework you prefer React Native or Flutter and do you already have the API documentation ready to share? Best regards, Aliza K.