Mobile Sensor-Based Planning App Development

@Microlent

Hello, I’m an experienced Expo/React Native developer with deep expertise in stabilizing complex cross-platform apps and backend services like Firebase. How I can support you: - Review and transfer your existing business logic to the final app to ensure clean, maintainable code - Troubleshoot and resolve backend issues related to Firebase Authentication, Realtime Database, Cloud Storage, Maps integrations, and Sentry error tracking - Identify and fix frontend bugs for smooth, consistent performance on preview and production builds - Improve testing coverage with targeted unit and integration tests to boost app stability - Help establish production deployment pipelines and channel setups for Expo/React Native - Provide clear guidance and pair programming to accelerate your future implementations Your tech stack and packages match my expertise, and I’m confident we can stabilize your app quickly and improve development velocity moving forward. Let’s discuss your project goals and next steps. I look forward to collaborating! Best regards, Vicky Keswani

@AwaisChaudhry

Hello, I understand that you're looking for support in refining your mobile app built with Expo and React Native. Since you’ve already implemented a good portion of the business logic and are facing backend issues alongside frontend bugs, my approach will focus on stabilizing your existing code and ensuring a smooth migration of the business logic to the final version. I can provide hands-on coding support as well as guidance on best practices to enhance the app's performance and testing coverage. With my experience in the same frameworks you've chosen, I can help you identify and fix the backend issues, improve the frontend experience, and prepare the app for production. Let’s work together to get this app running seamlessly on both iOS and Android while also setting up an efficient workflow for future updates. What specific backend issues are you facing, and do you have a preferred testing strategy for improving the overall testing coverage? Thanks, Muhammad Awais

@irsolutions

I bring over 10 years of web and mobile development experience, specializing in Expo/React-Native for Android & iOS, Firebase services, and more. I understand your need to stabilize the app's backend issues and improve testing coverage, ensuring stable performance across all channels. In the realm of mobile sensor-based planning apps, I've successfully implemented real-time data syncing, sensor data usage, and seamless app functionality. My expertise in Firebase authentication, real-time database, and cloud storage align perfectly with your project's requirements. With my guidance, you can expect accelerated progress in stabilizing your current codebase and enhancing future implementations. I have a strong track record in guiding clients like yourself through similar challenges, all while delivering top-notch results. Let's collaborate to elevate your app to its full potential. Contact me now to discuss how we can streamline your development process and achieve your project goals seamlessly.

@rahuliitm69

With over 10 years of experience as a mobile application developer, I have extensive knowledge in the frameworks and backends you have selected for your app. My expertise in React Native and handling cross-platform development using Expo can be a valuable asset to you right now. Considering that you have already implemented most of the UI and backend features but require assistance with code stabilization and testing coverage, my presence can help to expedite these processes. I understand that you've built a functional prototype and require guidance in transferring the business logic smoothly onto the final version. Being able to navigate through these situations is my specialization. Moreover, as an experienced programmer, I can identify and rectify the glitches or bugs you’re encountering, especially on the backend and frontend. Having worked on over 500 projects successfully end-to-end, I offer comprehensive development services from deployment to maintenance. So, whether it's optimizing your app's performance on different channels like iOS & Android or implementing new features down the road like in-app-purchases via expo-iap, I can ensure a seamless transition between our collaboratively-developed codes. Let’s chat more about how we can enhance your project further. Rahul S.B

@tangramua

Dear maximilianBBB,   We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time.   We are 25 years in this business and our technical specialists have strong experience in Mobile App Development, iPhone, Android, Google Maps API, React Native, Google Firebase, Expo and other technologies relevant to your project.   Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews.   Please contact us via Freelancer Chat to discuss your project in details.   Best regards, Sales department Tangram Canada Inc.   

@mrresearcher99

Hi there, I’ve reviewed your requirements and would be happy to assist. With over 10 years of experience in Android Native development (Java/Kotlin), I specialise in building robust, high-performance apps tailored to user needs. I ensure clean code, intuitive UI, and on-time delivery — keeping you updated at every step. Let’s connect and bring your app idea to life! Best, Bhargav Android Native Developer | 10+ Years Experience

@OutsourceMan

⭐⭐⭐⭐⭐ Hello Valuable Client, Your project is at a strong stage and we can help you complete it smoothly. CnELIndia, led by Raman Ladhani, specializes in React Native, Expo, and Firebase-based mobile solutions, making us well-suited to support your app’s finalization. We will first stabilize the backend issues in your preview builds and ensure Firebase services (Authentication, Realtime Database, Storage) are fully optimized. Next, we’ll transfer your business logic into the production-ready app while resolving existing UI/UX bugs. We can also expand automated test coverage, improving reliability and reducing future debugging effort. Our approach combines mentoring you on best practices—clean architecture, debugging, testing, and performance optimization—while also directly contributing code to accelerate delivery. Once stable, we will configure production builds, implement CI/CD for seamless updates, and prepare the app for release on iOS and Android. With clear communication in English or German, we will guide you toward a robust, production-ready app.

@AITSoft

Hello, I understand that you are developing a mobile app using Expo/React-Native and are looking for support to finalize the project. You've made significant progress with the UI and backend, but you're facing some stability issues and need guidance in transferring your business logic to the final version. My approach will focus on stabilizing your existing code and ensuring the app runs smoothly across all platforms. I can provide direct assistance by troubleshooting backend problems, fixing frontend bugs, and advising you on best practices for further improvements. With my expertise in the frameworks and technologies you've chosen, I can help accelerate the development process and enhance your understanding of the implementation. I look forward to collaborating with you to make your app a success! What specific backend issues are you currently experiencing, and which features do you want to prioritize for stabilization? Thanks, Shamshad

@rbtech1984

Hello There!!! ⭐⭐⭐⭐( Mobile Sensor-Based Planning App Development )⭐⭐⭐⭐ I see you have already built a solid foundation with your prototype and are now focusing on transferring the business logic into your nearly finished final app. The app uses Expo/React-Native with Firebase and already runs well in development, but you are seeking help to stabilize the backend, fix some bugs, improve testing coverage, and get it production-ready across both iOS and Android. ⭐⭐⭐⭐ * Bringing your business logic into the final app smoothly * Fixing backend and frontend bugs causing preview build issues * Setting up stable production channels with Expo and Firebase * Enhancing testing coverage for more reliable performance * Guiding and coding alongside you for future improvements ⭐⭐⭐⭐ Execution Plan: I will use Expo/React-Native along with Firebase (auth, database, storage), Google Maps API, and Sentry for error tracking. My focus will be stabilizing your current codebase, improving testing with Jest and Testing Library, and ensuring smooth deployment to production. With 9+ years of experience in mobile app development, I bring reliability, clear communication, and a focus on quality results. I can guide you step by step while also committing code where needed. Let us connect and get your app polished, stable, and live. Best Regards, Farhin B.

@TechizeBuilder

Hi maximilianBBB, I came across your project "Mobile Sensor-Based Planning App Development" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in Mobile App Development, React Native. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak

@jitendras097

Hello, I AM FULL-TIME DEVELOPER FOR YOUR PROJECT I have over 9+ years of proven expertise in delivering complex projects end-to-end, I have carefully reviewed your requirements and can confidently execute this task with precision. The project aims to develop a stable and sensor-driven mobile planning app on Expo/React-Native where the focus is on efficiency, real-time data syncing, and a user-centric experience across iOS and Android. Core features will include seamless sensor data integration, real-time updates for data and images, smooth backend connectivity with Firebase services, and a clean, intuitive UI/UX. My approach will be to optimize the existing codebase, fix preview build issues, ensure secure and scalable architecture, and guide future implementations efficiently. By combining deep technical knowledge with practical execution, I will deliver a solution that is robust, future-ready, and easy to maintain. -->>WHAT I AM OFFERING-- ->> 100% DELIVERY OF WORK ->> HIGH-QUALITY, BUG-FREE CODE ->> DAILY PROGRESS UPDATES WITH NO COMMUNICATION DELAYS ->> 2 YEAR POST-DEVELOPMENT SUPPORT TO ENSURE YOUR APP RUNS SMOOTHLY, FREE OF COST Let’s discuss in chat as I have some queries to ask regarding the project to proceed further. Jitendra

@Mobilehead

Hello. I once faced a tricky issue with Firebase real-time syncing that broke the app's data flow, but I fixed it by optimizing the listener setup. I understand you need help stabilizing your Expo/React-Native app and transferring business logic efficiently. I have experience with Firebase, Sentry, and related packages, ensuring a smoother backend integration. Together, we can improve code quality and increase your testing coverage from 30% to a more robust level. Let’s get your app ready for production and resolve any backend issues quickly.

@mobiwebsolutions

Hi There!!! I have studied your project description very well and fully understand that you are building a mobile planning app using Expo/React-Native with Firebase, and need support transferring logic, fixing bugs, and stabilizing your production builds. I am best fit for the project because I have strong experience working with React-Native, Firebase and mobile sensor integration in real-world apps. ✔ Support with clean migration of business logic to final version with minimal regressions ✔ Debugging backend and preview build issues to ensure production readiness ✔ Guidance and code contribution to improve stability, testing and future scalability I will provide help with design polishing, backend setup, bug testing, and clean source code delivery with basic documentation and build guidance. I have 9+ years experience as a full stack developer and worked on mobile apps using Expo, Firebase services and real-time sensor data for logistics and tracking systems. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!

@mughiraaa

Hi, i will first review the existing expo/react-native codebase and the prototype to ensure a smooth transfer of the business logic into the final app, then systematically stabilizing the backend and frontend by debugging preview build issues and fixing smaller ui/ux bugs. i will optimize the integration with firebase services including authentication, realtime database, and cloud storage, while ensuring smooth use of google/apple maps and sentry for monitoring. i will enhance realtime data syncing, sensor data handling, and prepare the app for future in-app purchases using expo-iap. for stability and maintainability, i will improve testing coverage using jest and react-native testing library, set up proper error handling and logging, and configure ci/cd pipelines for automated builds and production deployment. the app will be cleaned up by refactoring where necessary, resolving dependency issues across the listed packages, and ensuring consistent performance across ios and android with expo updates and production channels properly configured. Let's have a detailed discussion in chat, as it will help me give you a complete plan, including a timeline and estimated budget. i can share my portfolio in chat I look forward to hearing from you through chat. thanks Regards, Mughira

@santoshkumars17

Having developed scalable, efficient, and user-friendly applications for over 5 years, I'm confident I'm a great fit for your project. My proficiency in React Native and broader mobile application development makes me more than capable of providing you the necessary assistance. From managing your Firebase backend to ironing out any bugs in the frontend, I'll prioritize stabilizing your codebase and implementing future iterations professionally and efficiently. Beyond my technical capabilities, I understand that a freelancer who can effectively guide and instruct you while lending a hand themselves is crucial at this juncture. My track record of on-time delivery, clear communication, and end-to-end development support directly aligns with your requirement. Lastly, as an added advantage, my location in Cyprus ensures smooth multi-lingual communication alongside our shared hours of operation facilitating quick decision making and seamless progress. Let's join hands and transform your existing prototype into a fully functional production-ready app!

@shushmobiweb6

Hello, I understand your need for an experienced React Native/Expo developer to help stabilize, refactor, and finalize your mobile app. With 8+ years of full-time experience in mobile development (Android & iOS), I’ve worked extensively with React Native, Expo, Firebase (Auth, Realtime DB, Cloud Storage), Maps, Sentry, and sensor integrations, making me a perfect fit for your project stack. " We will be available for full-time working on your project " 40 hours weekly 8 hours per day " on hourly basis and work step by step with coordination and i am very interested to work on your project" I can assist in: Transferring your business logic from prototype to the final app. Debugging backend/frontend issues in preview & production builds. Improving code quality, testing coverage, and stability. Setting up CI/CD, release channels, and production builds. Guiding you with best practices while also contributing directly to the codebase. I have built real-time syncing apps, Firebase-powered solutions, and apps using device sensors and location services, so I can quickly identify and fix the stability bottlenecks you’re facing. My focus will be to streamline your current implementation, enhance maintainability, and speed up future features. I also provide long-term support post-deployment to ensure smooth production operations. Let’s collaborate to get your app polished, stable, and ready for launch. Thanks, Sushma

@mahig47

Hello! As per your project post you’re looking to stabilize and complete a mobile sensor-based planning app built with Expo/React Native, where the UI and backend are ~70% done and the business logic already exists in a prototype. The next step is to transfer that logic, resolve backend/preview build issues, clean up frontend bugs, and set up a reliable production channel while also receiving guidance on improving code quality and testing coverage. I specialize in React Native (Expo) app development with experience supporting founders who’ve built strong prototypes but need professional help to stabilize, refine, and ship production-ready apps. My expertise includes React Native/Expo for iOS & Android, backend integration (Node.js/Express, Firebase, AWS), and debugging tricky build or deployment issues. I’ve worked with apps in exactly this phase where ~70% is in place, but stability, bug fixes, and production-readiness are the priority. I not only contribute directly to code, but also mentor clients on best practices for architecture, testing, and long-term maintainability. My focus will be on getting your app stable across iOS/Android, setting up a clean production channel, and ensuring the transfer of business logic is smooth while also supporting you with code guidance so future implementations are faster and more robust. Let’s connect and discuss how I can help you bring this app to production-ready quality. Best regards, Nikita Gupta

@maryam951

Hello maximilianBBB, I am Maryam Abbas, a seasoned Android and Google Firebase developer with 4 years of experience in mobile app development. I have carefully reviewed the project requirements and am confident in my ability to assist you in stabilizing and enhancing your mobile sensor-based planning app. Utilizing my expertise in Expo/React-Native, Firebase, and various backend services, I will guide you in transferring the business logic to the final app, ensuring stability across all platforms. My track record of successful projects and positive client feedback speaks to my dedication and proficiency in delivering high-quality results. Please review my portfolio at https://www.freelancer.pk/u/maryam951 and let's discuss how we can move forward with your project. Looking forward to collaborating with you. Best regards, Maryam Abbas

@angelgrod

Hey , Good evening! I am an expert mobile coder with skills including iPhone, Google Maps API, Mobile App Development, React Native, Android, Google Firebase and Expo. "^5.8.3" Please contact me to discuss more regarding this project. Thank you for your attention Angel