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I need an experienced React Native / Expo developer to take over an existing iOS application and deliver a fully working TestFlight version. The app is already largely developed. I do NOT need a new application built from scratch. Current stack: * React Native / Expo * iOS / TestFlight * [login to view URL] backend * PostgreSQL / Prisma * Railway * LiveKit audio/video * Realtime synchronization * English and Arabic / RTL support The main remaining task is to identify and fix the real physical-device blockers. The application has a four-person ceremony flow: Bride + Groom + Witness 1 + Witness 2. The final acceptance requirement is very clear: The full ceremony must work from beginning to end on four separate physical phones, including: * invitations and joining * correct participant roles * LiveKit connection * camera and microphone * audio/video between participants * realtime ceremony synchronization * reconnect after temporary network loss * background/foreground recovery * all ceremony stages * final completion * certificate generation * successful iOS TestFlight build Please do not rewrite the application unless absolutely necessary. The objective is to inspect and fix the existing repository. Fixed-price target budget: USD 350. Maximum budget: USD 500 for a highly qualified developer. Payment will be divided into milestones, with the largest payment released only after the four-device physical test and TestFlight delivery are successfully completed. Please apply only if you have real experience with React Native, Expo/EAS, iOS/TestFlight, and preferably LiveKit or multi-user realtime audio/video.
Project ID: 40660126
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227 freelancers are bidding on average $433 USD for this job

Hi, The main risk is not the ceremony logic, but getting four physical iPhones working reliably with LiveKit, iOS permissions, background recovery, and TestFlight without disrupting the existing app. Since the app is already built, I’d focus on identifying and fixing device-only blockers rather than rewriting working parts. I would start by reproducing the issue on a real iPhone build, then trace the full flow step by step: invite/join, role assignment, audio/video attachment, realtime sync, reconnect behavior, and certificate handoff. This usually reveals Expo/EAS configuration issues, iOS permission gaps, or LiveKit state handling problems that won’t appear in simulators. Initial focus: Inspect the current Expo/iOS build setup Reproduce the issue on physical devices Fix join/role and LiveKit session flow Verify background and reconnect behavior Prepare a TestFlight-ready build I have experience with Expo, iOS build/debugging, LiveKit, and device-side issue resolution. I can review the current setup quickly and move toward a stable fix without breaking the existing flow.
$287 USD in 12 days
9.4
9.4

Hello, I'm Elias, a Miami-based senior software engineer with 20 years of experience, specializing in mobile app development using React Native and Expo. I carefully reviewed your project and understand you need an experienced developer to finalize your existing iOS application. I've built similar mobile applications and know the importance of secure architecture, responsive UI, and maintainability. My approach would involve a few key phases: 1) Review the existing app structure and codebase. 2) Identify and address any outstanding features or bugs. 3) Enhance the user experience with thoughtful UI adjustments. 4) Conduct thorough testing to ensure performance and stability. 5) Assist with deployment and provide ongoing support. Could you please clarify the following questions to help me better understand the project? 1) What specific features or functionalities are you looking to refine or enhance? 2) Are there any existing integrations with third-party services that need updates? 3) How do you envision managing user roles and permissions within the app? I've completed many projects under NDA, so I can't share direct links, but I can walk you through the architecture and technical decisions made in similar applications. I also prioritize creating a maintainable codebase, making future updates easier.
$500 USD in 5 days
8.3
8.3

Hey, I’ve carefully reviewed your project, and I understand you need someone to take the existing React Native/Expo app across the final physical-device hurdles rather than rebuild it. I can help diagnose the real iOS issues and get the complete four-person ceremony reliably working on TestFlight. I will focus on physical-device debugging, LiveKit audio/video, participant roles, realtime synchronization, network reconnects, background/foreground recovery, and the final certificate/completion flow. I’ll also verify the EAS/TestFlight build through an end-to-end four-device test before delivery. I have hands-on experience with similar projects and would be happy to share relevant examples during our discussion. One quick question: Do you already have four physical iPhones available for the final simultaneous ceremony test? Portfolio: https://www.freelancer.com/u/Hammadhassan21 Best Regards, Hammad Hassan
$500 USD in 15 days
7.3
7.3

Hi there, We can audit your existing React Native/Expo application and focus specifically on the physical-device blockers rather than rebuilding what already works. We’ll troubleshoot the four-person ceremony flow, participant roles, LiveKit audio/video, camera/microphone permissions, realtime synchronization, reconnect and background/foreground recovery, RTL support, certificate generation, and finally produce a successful iOS TestFlight build. We’ll validate the complete flow across four physical iPhones before considering the project complete. Can you share the existing GitHub repository and confirm whether the current Expo/EAS configuration is already set up for TestFlight? Kindly send me a message to discuss more or directly award me. Thank you!
$300 USD in 4 days
7.0
7.0

We understand the urgency of finalizing your React Native iOS application and ensuring a seamless experience for your four-person ceremony flow. Our team has the expertise to identify and address the physical-device blockers, allowing for a fully functional TestFlight version. We will focus on the critical areas such as LiveKit connections, participant roles, and real-time synchronization to ensure a smooth ceremony flow. Our approach will involve thorough testing on multiple devices to confirm that all features, including audio/video functionality and background recovery, work flawlessly. Our experience with React Native, Expo, iOS, and real-time audio/video solutions aligns perfectly with your project needs. Also, communication, quality, and on-time delivery are priorities. If you'd like, I can also share similar work we've completed and discuss the best approach for your project. Regards, JP
$400 USD in 7 days
6.8
6.8

Hi, I reviewed the request to finalize an existing React Native / Expo iOS app and deliver a fully working TestFlight build, focused on fixing real physical-device blockers. I’ll inspect the current iPhone and iOS/TestFlight pipeline, reproduce issues on four separate devices across invitations, joining, participant roles, LiveKit connection, camera/microphone, and realtime synchronization. I’ll validate Expo flows with EAS-style build steps, RTL behavior (English/Arabic), reconnect after network loss, and background/foreground recovery so every ceremony stage completes and certificate generation works. With clean commits and quick, reliable iteration, I can get you to a successful TestFlight delivery after the four-device end-to-end check. Let’s discuss here now.
$250 USD in 30 days
7.1
7.1

Hi, I am Balasubramanian, seasoned in both mobile and web-based projects. What sets me apart is my extensive experience that spans across 19+ years and 483+ successful projects. Being a leader in web and mobile app development, I have spent considerable time managing situations like the one you described - picking up partially developed applications and bringing them to fruition. Specifically, my skills lie in React Native, Expo/EAS, iOS/TestFlight as well as familiarity with tools like LiveKit. I understand how crucial it is for your project to work seamlessly across multiple devices. Constructing a fully functional ceremony flow for the bride, groom, and witnesses from start to finish is a precise task that can't afford any outages or poor synchronization. In addition to my technical skills, I bring a reliable and client-oriented approach to projects. As evidenced by my milestone-based payment strategy, I believe in earning your satisfaction at each step of the project journey. Let's embark on this partnership knowing that I have both the capabilities you require and the dedication to deliver a solution that meets all outlined specifications. Thanks, SBM
$500 USD in 7 days
7.0
7.0

Greetings, You need an experienced React Native/Expo developer to audit the existing iOS app, resolve physical-device blockers, and deliver a stable four-device ceremony flow through TestFlight. We will build this with: existing codebase debugging, Expo/EAS iOS builds, LiveKit audio/video, realtime synchronization, network recovery, RTL support, four-device testing. A couple of questions before I provide a detailed plan: Do you already have four physical iPhones available for end-to-end testing? Are the current issues documented, or should I first reproduce and isolate the blockers from the existing repository? Portfolio: freelancer.pk/u/zainalitariq245 Based on your requirements, I can suggest the most scalable approach and provide timeline and cost estimate after discussion. Looking forward to discussing the details. Best regards, Zain Ali
$400 USD in 10 days
6.4
6.4

Hello!! Your existing React Native and Expo application will be carefully audited and fixed on real iPhones, focusing on the four-person ceremony, LiveKit, realtime synchronization, reconnect handling, and final TestFlight delivery without unnecessary rewrites. • Do you already have four physical iPhones available for testing? • Is the current repository and Railway environment ready to share? • Are the existing Apple Developer and TestFlight accounts configured? Relevant React Native, Expo, iOS, realtime, and audio/video applications have been completed with strong attention to physical-device testing. Every ceremony stage will be verified across four devices, including recovery, certificate generation, and TestFlight submission. Let us discuss the current blockers and start the takeover in chat. Best regards Farhin B
$250 USD in 7 days
6.7
6.7

Hi! This is something we can handle. Before jumping in, one key question: can you share the repo and any notes on where things currently break? Knowing whether the issues are around LiveKit connections, role sync, or the iOS build itself would let us give you a much more accurate estimate — and avoid surprises mid-way. We work with React Native/Expo and EAS builds regularly, and have dealt with multi-participant realtime flows, background/foreground recovery, and RTL layouts, so the stack here is familiar ground. Looking forward to taking a closer look if you can share access. Gustavo & the DoTheCode team
$600 USD in 19 days
6.5
6.5

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
$500 USD in 25 days
6.5
6.5

I have solid experience taking over existing React Native / Expo apps and fixing the issues that only show up on real iPhones. Your brief is very clear, and I understand the goal is not a rewrite but getting the current repository stable for the full 4-person ceremony flow, LiveKit, reconnect handling, and TestFlight delivery. I can inspect the current blockers carefully, fix them with minimal disruption to the existing codebase, and test against the exact acceptance criteria you listed. If you want, I can also outline the likely risk areas before we begin.
$500 USD in 7 days
6.2
6.2

Hi, I get that the goal is to get a largely complete React Native/Expo iOS app into TestFlight and ensure the four-device ceremony flows end-to-end on real hardware. I've worked on similar multi-user RN apps with LiveKit-style channels and RTL support. I'd start by validating the current flows on a live device set, verify camera/mic permissions, and isolate unstable parts, then implement targeted fixes for reconnect, background/foreground recovery, and re-sync under real usage. One technical risk / key challenge: Device-to-device reconnection under fluctuating networks can mask deeper issues. What should happen if a device drops offline and then re-joins during the ceremony? Who owns the ceremony state and how should cross-device re-sync be tested in TestFlight? If we're aligned, I can outline the implementation plan before we get started. Best regards, Brandon
$300 USD in 3 days
6.0
6.0

Greetings, I hope this message finds you well. I have carefully reviewed your project requirements for finalizing the React Native iOS application, and I am confident in my ability to assist you in achieving your objectives. With a strong background in mobile app development, particularly in React Native and iOS platforms, I am well-equipped to handle the tasks at hand. My portfolio includes successful projects in Mobile App Development, iPhone, and React Native, showcasing my expertise and dedication to delivering high-quality results. I understand the importance of meeting the real business objective behind the project, and my approach involves structured requirement confirmation, controlled planning, clean implementation, and thorough testing to ensure a flawless end product. Could you please provide more insight into your top priority or key business goal for this project? I believe that understanding this better will enable us to align our efforts effectively. Feel free to initiate a chat to discuss the project scope further and finalize the details seamlessly. Best regards, Muhammad Anas Khan ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐
$250 USD in 4 days
5.8
5.8

Please initiate the chat so we can thoroughly discuss the requirements for the app, prior to the start. Happy to provide the final budget in chat. You will get a one-stop solution from my end as, throughout my 5+ years of freelancing Android/iOS App development career, I have created plenty of Mobile applications. I ensure to give the best quality app with good performance and responsive attractive UI and I have provided the clients with excellent results. I have expertise in Swift, React Native, Node.js, React.js, Angular, Laravel, and PHP. I am equipped to develop apps using these languages in all industries Pharmaceutical, Travel, Media & Entertainment etc. I also handle backend integrations for third-party collaborations on your systems. well versed in Mobile App Development in-App-Purchases, User Authentication, User Profile Creation, Location, Chat and Messaging, Map Integration, Payments, Social Media Account Integration, and many more to show. Have considerable knowledge of Android ANT SDK, BLE, Google Cast SDK, ads SDK, offerwall SDK and Titanium. I use libraries such as Sherlock Action Bar, OpenGL, Media Framework, and WebKit to build IoT integration app solutions. I am always interested in making long term professional relationships with my clients to ensure that every project becomes successful. So, if you hire me, I can assure you that you will not regret your decision. Best Regards Tejash J.
$500 USD in 7 days
5.8
5.8

Hi, Mateo here from Toronto. Hope you're doing well. I can help finalize your React Native iOS application by focusing on the existing codebase and fixing the real device blockers rather than rewriting the app. I can review the Expo/EAS setup, iOS permissions, LiveKit audio/video flow, realtime synchronization, background recovery, RTL support, and the complete four-participant ceremony workflow. My approach would be to test each stage on physical devices, identify the actual issues, apply targeted fixes, and make sure the TestFlight build is stable and ready for release. I understand the priority is reliability of the complete ceremony flow, including roles, connections, completion flow, and certificate generation.
$500 USD in 5 days
5.8
5.8

I’ve worked on React Native apps with multi-user audio/video and realtime sync, so I understand how tricky physical-device testing can get, especially with LiveKit integrated. The key is to methodically track down what breaks on real iPhones—like whether the app handles background recovery or reconnection properly—and fix those blockers without touching working code. I’d focus first on joining and role assignment across four phones, then verify LiveKit streams and mic/camera permissions on iOS. Making sure the ceremony stages sync perfectly and network drops reconnect smoothly will be a priority. For the TestFlight build, I’ll use your current Expo/EAS setup to avoid surprises. Quick question: Have you seen the app mostly fail at the same step on physical devices or does it vary? Also, are TestFlight push notifications involved in invitations or just the app UI? I’m ready to jump in and get those physical-device issues fixed, so you can have a smooth TestFlight release that meets your ceremony flow requirement.
$250 USD in 7 days
5.3
5.3

Hi, I read your description. You need an experienced React Native/Expo developer to take over the existing iOS app, identify the physical-device blockers, and make the complete four-person ceremony flow work reliably with LiveKit, realtime sync, reconnect/background recovery, certificate generation, and TestFlight delivery. Quick question: Do you already have access to four physical iPhones for testing, or will I need to coordinate the device testing with your team? I can work directly with the existing repository without unnecessary rewrites, focus on the real-device issues, and validate the complete flow before delivering the TestFlight build. Looking forward to your response. Best Regards, Hassan H
$350 USD in 7 days
5.5
5.5

Hi, I have strong experience with React Native/Expo, EAS, iOS/TestFlight, realtime synchronization, and audio/video integrations. I can take over your existing repository, reproduce the issues on physical devices, and fix the actual blockers without unnecessary rewrites. I’ll validate the complete 4-person ceremony flow including roles, invitations, LiveKit camera/mic, realtime sync, reconnect/background recovery, ceremony completion, certificate generation, and TestFlight deployment. Working Flow: Repository audit → Physical-device testing → Fix critical blockers → 4-device testing → EAS/TestFlight build → Final QA I’m comfortable working within the milestone-based acceptance process and can start immediately. Thanks, Invoke Tech
$500 USD in 15 days
5.6
5.6

I’m an experienced React Native/Expo developer with iOS, EAS/TestFlight, and realtime app experience. I’ll do: * Audit the existing codebase and identify device specific blockers. * Fix LiveKit audio/video, roles, and reconnect issues. * Test the complete ceremony flow on physical iPhones. * Verify background/foreground recovery and certificate generation. Q: Is the existing repository and current TestFlight build ready to review? Regards
$250 USD in 10 days
4.6
4.6

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