Mobile App Maintenance & Fixes (React Native)

@AwaisChaudhry

Hello, I will take over your React Native app for ongoing maintenance: optimize performance, fix cross‑platform bugs, integrate new features, and manage releases on Apple App Store, Google Play, and Google Console. I’ll start with a focused performance audit, establish a bug‑triage and regression plan, and implement prioritized feature updates with clear acceptance criteria. I’ll set up a reliable release workflow, ensure policy compliance, document changes, and keep you updated on progress and risks. I’ll collaborate with your team to align on priorities, testing, and milestones, delivering stable builds across iOS and Android. What is the single top priority for the next milestone and the expected acceptance criteria so I can plan the sprint? What is your immediate top priority for the next milestone (bugs, performance, or new feature)? Do you have a backlog or spec with acceptance criteria ready? What release cadence and reporting do you prefer (weekly updates or milestones)? Are there any critical bugs impacting users right now and their severity? What access and tooling will you provide (Firebase, App Store Connect, Google Console, repo) and any security constraints?

@leadconcept

Greetings, I understand you need an experienced freelance mobile app developer to take over your existing iOS and Android app, focusing on optimization, bug fixes, new feature integration, and ongoing maintenance. The role includes performance improvements, cross-platform troubleshooting, API integration, UI/UX enhancements, and managing store listings on Apple App Store and Google Play, ensuring compliance with the latest platform standards. Before we begin, could you clarify 1, What tech stack was used for the current app (React Native, Flutter, native iOS/Android)? 2, Are there specific features or integrations you want prioritized for the next update? 3, Do you require ongoing maintenance after the initial revision, or only project-based support? Our team includes mobile developers experienced in cross-platform development, API integration, Firebase, store management, app submission, and post-launch maintenance. We focus on improving stability, performance, and user experience while maintaining a seamless workflow with your internal team. Let us connect to review the current app, define priorities, and plan updates and milestones, the current bid amount is a placeholder to submit this proposal. Regards Yasir LEADconcept PS: We can share examples of live apps we’ve maintained and updated, highlighting performance optimization, new feature integration, and smooth store submission processes.

@diektech

Hi, this is Elias from Miami. I went through the details and this sounds like a solid fit. You already have the app live, and now you need someone to take ownership of cleanup, performance tuning, bug fixing, and rolling out new features — plus handling store updates properly so nothing breaks on release. I’ve worked on plenty of existing iOS/Android apps in this exact phase. Reviewing code, stabilizing things, fixing edge-case bugs, improving UX, and managing App Store / Play Store releases is something I’m very comfortable with. I’ve also handled Firebase-heavy apps and ongoing maintenance where updates need to be smooth and predictable. I’m fine working independently, but I also like keeping things clear with short updates and test builds so nothing drifts. A few quick questions so I’m aligned: Q1: What stack is the app built on (native, React Native, Flutter, etc.)? Q2: Are the current issues more performance-related, crash-related, or feature gaps? Q3: Do you want someone long-term on retainer, or start with a defined cleanup phase and reassess? Happy to review the app and suggest a clear plan for next steps. Thanks, Elias

@ioswithfaisal

With my extensive experience in mobile app development, my skills are tailor-made for your React Native project. I have an in-depth understanding of cross-platform compatibility and API integrations, which will be invaluable as I review and revise your existing app, manage bug resolutions, and integrate new features for optimum performance. My proficiency in Firebase, Google Console, and App Store Connect all equip me to effectively maintain your app listings on the respective platforms. Beyond just technical expertise, I’m committed to maintaining high client satisfaction. This is reflected in my ability to manage deadlines without sacrificing quality. Additionally, my knack for clear communication ensures that you'll be updated on progress promptly and any ongoing maintenance needs can be swiftly addressed. In a fast-paced industry marked by constant change, it's important to have someone that can evolve with it. My proven track record of successful projects speaks to my adaptability—regardless of scope or duration. I believe I am the ideal candidate not only for this project, but also for your potential long-term app maintenance needs. Let’s come together to create an improved mobile app experience that your users will love!

@WebInfoSolutions

can you set budget to 5000 USD? do you have free hand drawing of all the pages that are new requirements? I’m a cross-platform mobile app developer with proven experience maintaining live iOS and Android apps. I can audit performance, fix bugs, add features, manage App Store and Google Play releases, and ensure policy compliance. I work independently, communicate clearly, and offer flexible hourly or project-based support.

@ixorawebmob

Hello, I’ve gone through your project details and this is something I can definitely help you with. With over 10 years of experience in mobile app development, I specialize in React Native and have a strong background in optimizing existing applications. My focus is on improving performance, resolving bugs, and seamlessly integrating new features to enhance user experience. I've successfully managed app deployments on both the Apple App Store and Google Play Store, ensuring compliance with policies and maintaining high-performance standards. From troubleshooting to implementing robust APIs, I ensure every detail is addressed. I pride myself on clear communication and collaboration, working closely with teams to document updates effectively. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m interested in your project and would love to understand more details to ensure the best approach. Could you clarify: What specific features or optimizations are you looking to implement in the app? Let’s discuss over chat! Regards, Arpit Jaiswal

@rbtech1984

Hello There!!! ⚜️⭐⭐⭐⭐⚜️(( React Native mobile app optimization, bug fixes, and feature enhancements ))⚜️⭐⭐⭐⭐⚜️ You are looking for a skilled developer to maintain and improve your existing iOS and Android app, ensuring performance, stability, and compliance while integrating new features to enhance user experience. The goal is seamless updates, smooth functionality, and reliable store management across both platforms. I bring hands-on experience in React Native development, cross-platform optimization, and API integration. I have managed app deployments and updates on App Store Connect and Google Console, including performance improvements and bug resolution for live apps. Three core aspects of my approach: Comprehensive review and debugging of iOS and Android versions Efficient integration of new features without disrupting existing functionality End-to-end store management with version updates, compliance, and release documentation I can take over your app, enhance stability, implement requested features, and manage all releases efficiently. Let’s discuss your priorities and next steps to streamline this maintenance. Warm Regards, Farhin B.

@DeveloperStation

Hi there, We’ve developed several React Native apps that are now live, and we’ve also worked extensively with Firebase for both web and mobile solutions. One of our recently developed apps, Descripio, uses AI to generate product descriptions for Amazon sellers, and we integrated Google and Amazon login flows, along with Stripe for subscription payments. We can handle all aspects of your app, from server management to CI/CD pipelines, and we’re equally comfortable with backend technologies like Node.js and PHP. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m eager to learn more about your exciting project. Best, Adil

@dvcontact

Hi there, Would you like me to build a quick demo showing how I'd optimize your React Native app's performance and streamline your app store management before we commit to anything? I specialize in breathing new life into existing apps—combining performance optimization, cross-platform bug fixes, and seamless store management (iOS/Android) while ensuring full compliance with latest platform policies. My approach prioritizes stability and user experience through proven React Native expertise and Firebase integration. Let's connect to discuss your app's specific pain points and how I can accelerate your development cycle with independent, deadline-driven execution. Best, Smith

@ShekhWebDev21

Hi I'm Shekh mohd and I'm excited about the opportunity to dive into your existing mobile application. With my solid experience in native mobile app development for both iOS and Android, proficiency in React Native, and familiarity with API integration, I am confident in my ability to successfully optimize your app, fix bugs, and integrate new features. In terms of maintenance and update management, rest assured as I've got you covered. My expertise in App Store Connect, Google Play Store, Firebase and Google Console will be instrumental in managing the app listings diligently for version updates and release submissions while ensuring compliance with latest policies. One thing that sets me apart is my holistic approach to digital solutions. Apart from coding, I bring to the table a comprehensive understanding of SEO and social media marketing—skills that can be leveraged to enhance visibility on your app's listing and drive user engagement. Lastly, as a freelancer, I value effective communication and delivering projects on time. With me on board, expect dedicated work with stringent adherence to deadlines and consistent progress updates. Your search for a seasoned professional who can revamp your existing mobile application ends here—I'll inject new life into your app by elevating its functionality, improving performance and enhancing user experiences through adept bug-fixing, optimization and innovative feature additions. Let's get started!

@itswahabahmad

As an experienced mobile app developer, I understand the complexities of maintaining and enhancing an existing application. Having worked on numerous projects for both iOS and Android platforms, I am well versed in troubleshooting and resolving bugs - a crucial skill to ensure your app's stability and performance. Additionally, my expertise extends to functionalities development, API integration, UI/UX standards adherence, and store maintenance - all of which align perfectly with your project requirements. In fact, my comprehensive knowledge of Firebase, Google Console, and App Store Connect will accelerate the time to market for your updates. Moreover, I believe that effective communication is the key to successful collaborations. With me on your team, you can expect regular progress updates and seamless coordination between your internal team and mine. Let's leverage our collective skills to provide the best possible user experience while ensuring compliance with the latest platform policies. In conclusion, what sets me apart are my innovation-driven mindset, my proven track record in delivering high-quality projects, my reliability in meeting deadlines, and my ability to work independently. I'm excited at the prospect of partnering with you to enhance your mobile application, streamline its performance,and elevate its users' experience.

@Tanmoy236

Hi! I’m an experienced mobile app developer specializing in iOS and Android platforms, with over 9 years of experience delivering stable, high-performing apps. I excel at optimizing existing apps, fixing bugs, integrating new features, and managing App Store and Google Play submissions end-to-end. Here's how I can help: * Review and revise your current app to improve performance, stability, and UX * Troubleshoot and resolve bugs across iOS and Android versions * Develop and integrate new features according to your project requirements * Manage app listings, version updates, and release submissions on Apple App Store and Google Play Console * Ensure compliance with platform policies and performance standards, including Firebase integration if needed * Collaborate with your team for planning, testing, and documentation of updates Could you share access to the current app repositories or store listings so I can review the codebase and existing issues before we start?

@yuliussmayoru

Hello, Most “already published” apps don’t need a rebuild, they need a calm, systematic cleanup: fix the crashes, tighten performance, and set up a release process that doesn’t break things every update. I can take ownership of iOS and Android updates, keep the stores happy, and ship improvements without drama. - Quick audit of the codebase and current store builds, then reproduce the top issues from crash logs and user reports - Performance pass: startup time, API calls, caching, memory leaks, and UI jank on real devices - Bug fixing: prioritize by impact, patch with clear commits, and add safeguards so the same bugs don’t come back - New features: break requirements into small milestones, implement, and test end to end with your team - Firebase and backend integration checks: auth, notifications, analytics, remote config, and error reporting - Store management: App Store Connect and Google Play Console versioning, signing, release tracks, and policy compliance - Documentation: short release notes, setup guide, and a simple workflow for future updates If you contact me I can share live apps I’ve shipped and we can start with a quick audit sprint this week. Warm regards, Yulius Mayoru

@fullstack0407

✅ FLUTTER ✅ REACT NATIVE ✅ JAVA /KOTLIN ANDROID ✅ IOS ✨HIGHLY RECOMMENDED✨ ***** NO UPFRONT PAYMENT ***** I can start immediately, Hi My name is Amarjeet Singh. I have read your job ( ). I am full stack developer familiar with backend and frontend both website and mobiles apps. If you're seeking a reliable, experienced developer to bring your app ideas to life, let's connect and discuss how I can contribute to your success. I'm ready for any Interview or want to discuss anything. I am available at your comfort time and start your work... Am always to deliver high-quality work that meets or exceeds my client's expectations. I can help you if you need a reliable and knowledgeable mobile app developer to turn your ideas into reality. Let's achieve your business goals together.

@khurshid040462

Hi there, I'm excited about the opportunity to manage the ongoing maintenance and fixes for your mobile application. With proven experience in React Native and a solid background in optimizing apps for both iOS and Android, I'm well-equipped to enhance your app's functionality and user experience. I specialize in bug resolution and performance improvements, ensuring compliance with the latest platform policies while integrating essential new features. As someone who thrives in collaborative environments, I will effectively communicate progress and work closely with your internal team to deliver seamless updates. Let's schedule a time to discuss your existing app and the specific needs moving forward.

@rahuljangid1993

Hello, Perfect fit for my 10+ years maintaining live Flutter iOS/Android apps with Firebase and store expertise. Immediate Action Plan: • Week 1: Performance audit + critical bug fixes • Ongoing: Store updates (App Store Connect/Google Console) + feature integration • Long-term: Compliance monitoring + team collaboration Availability: 30+ hours/week immediate Ready for code review today? Best, Rahul Jangid

@draganm59

Hey Marc S., How are you! I've carefully checked your requirements and really interested in this job. I'm a full stack Javascript 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, VueJS, Node JS, Python, html/css as well as javascript and jquery. Simply, I have rich experienced in Mobile App Development, iPhone, Android, Troubleshooting, PhoneGap, Mobile App Testing, iOS Development, React Native, App Store Optimization, API Integration as you enumrated. 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. Thanks and Regards, Dragan M.

@MIndlabsAi6

Hello Marc, I am Vishal Maharaj, a seasoned Mobile App Developer with 20 years of expertise in iOS Development, React Native, API Integration, Android, Mobile App Development, and Mobile App Testing. I have carefully reviewed the requirements for the Mobile App Maintenance & Fixes project and am confident in my ability to optimize the app, resolve bugs, and integrate new features to enhance user experience. My approach involves conducting a thorough performance review, identifying and troubleshooting bugs, developing new functionalities, and ensuring compliance with platform policies. I will collaborate closely with your team to plan, test, and document all updates effectively. I would appreciate the opportunity to discuss this project further. Please feel free to initiate a chat. Cheers, Vishal Maharaj

@jeanpatrickr8

Hi, hope you are doing well. I've read your proposal very carefully and I am confident about your project. I understand that you need an experienced app developer to revise and optimize your existing mobile application while providing ongoing support. I have hands-on experience in mobile app development for both iOS and Android platforms, and I've successfully tackled similar projects in the past, including optimizing apps for performance and user experience. These are my approach: - Conduct a thorough review of your current app to identify performance bottlenecks and stability issues. - Implement bug fixes and integrate new features, ensuring they align with your project requirements. - Manage app listings on the Apple App Store and Google Play Store for seamless updates and compliance with policies. I can start immediately and complete the work within a short timeline, ensuring your app is running smoothly and up to date. Looking forward to your reply!