Flutter App Update – Firebase Sync, RevenueCat Fix, UX Improvements

@softsolution2000

I have extensive experience in PHP, Website Design, Mobile App Development, Web Scraping, and Amazon Web Services which align perfectly with the requirements of the project "Flutter App Update – Firebase Sync, RevenueCat Fix, UX Improvements." I am confident in my ability to deliver high-quality results efficiently. The budget can be adjusted after discussing the full project scope. My priority is to complete the project within your budget and timeline. Please review my 15 years of experience and work history. Let's discuss the details and get started right away. I am eager to showcase my commitment to this project. Looking forward to your response.

@asifalimzd

Hi there, I can refine and update your Flutter app (Firebase + RevenueCat + scraping) quickly, focusing on stability, offlineHi there sync, and smoother, I can refine and update your Flutter app (Firebase + RevenueCat + scraping) UX. Scope I quickly, focusing on stability, offline’ll Cover: - sync, and smoother UX. Scope I’ll Cover: - Offline Sync: Offline Sync: Local storage ↔ Local storage ↔ Firestore with auto sync, unique shift Firestore with auto sync, unique shift IDs, secure rules IDs, secure rules, and cross‑device, and cross‑device support. - support. - Email VerificationEmail Verification: Configure Firebase: Configure Firebase Auth with your custom Auth with your custom domain, set up SPF domain, set up SPF/DKIM/DMARC, improve/DKIM/DMARC, improve templates, ensure templates, ensure inbox delivery. inbox delivery. - RevenueCat - RevenueCat Fixes: Verify Fixes: Verify subscription logic subscription logic, free trial limits, free trial limits, UI status updates, UI status updates, restore purchase, restore purchase testing. - testing. - UX Improvements: Simplify onboardingUX Improvements: Simplify onboarding, clarify navigation, clarify navigation, make main actions, make main actions intuitive. - intuitive. - Minor Tweaks: Faster scraping, improvedMinor Tweaks: Faster scraping, improved external calendar external calendar display format. display format. AsRegards, Asif Ali Zaman

@nikhilgarg96

As an experienced and versatile developer, I believe I am a great fit for your project. With a focus on both front-end and back-end technologies, I have successfully delivered numerous projects ranging from mobile apps to web-based platforms. My core expertise includes Flutter, HTML, PHP as well as impeccable skills in UX. Combining those with my strong command of Firebase Auth and Firestore, I’m confident in handling the specified tasks within your expected timeframe. To give you confidence in my ability to handle this project: specifically, I have prior experience with Firebase Sync, RevenueCat integration & have improved upon many UX related workflows which will improve upon your existing app. Furthermore, I’m more than comfortable working with large amounts of data like you have mentioned with regards to shift sync. Lastly, my extensive backend skills in tools such as PHP alongside frontend proficiency including HTML will ensure that your app not only functions efficiently but also follows best practices for security and data synchronization. Collaborating with me means not only receiving clean, maintainable code but also experiencing creative problem-solving that can enhance your project significantly! So, let's connect and bring your next project to life! With Regards!

@SBITServices

Hi "Wisken", I have extensive experience in Flutter development and have successfully implemented similar features in previous projects. To update your Flutter app, I will seamlessly sync local storage with Firestore, fix email verification issues, address RevenueCat subscription concerns, and enhance UX for improved user experience. Let's discuss further to ensure a successful project completion. Regards, Sai Bhaskar

@mascotindia123

Hello, I can quickly refine your existing Flutter app with robust offline-first Firestore sync, secure user-only rules, and reliable cross-device data consistency. I’ve fixed Firebase Auth email deliverability (custom domains, SPF/DKIM/DMARC) and stabilized RevenueCat subscriptions, trials, and restore flows in production apps. I’ll improve onboarding, navigation clarity, and key UX actions without a rebuild, keeping the code clean and maintainable. I can start immediately and deliver within a few days—happy to share similar projects and a clear timeline. Best Regards, Harpreet Singh.

@CANWS

Hi there, I can quickly refine and stabilize your existing Flutter app and address the remaining issues across Firestore sync, Firebase Auth, RevenueCat, and UX. I have strong hands-on experience with offline-first Flutter apps, secure Firestore syncing, RevenueCat subscriptions, and Firebase email/domain configuration. I’ll focus on clean fixes (not a rebuild): reliable offline → online sync with no duplicates, proper subscription state handling, inbox-safe verification emails, and smoother onboarding and navigation. I can start immediately and expect this to take only a few days given the current state of the app. Happy to share similar projects and jump straight into the fixes. Thanks

@khurshid040462

Hi there, I understand the urgency of updating and refining your Flutter mobile app, and I'm confident I can deliver the results you need swiftly. With extensive experience in Flutter development, I have successfully handled projects involving Firebase integration, Offline-first data management, and RevenueCat setups. For your app, I will ensure seamless syncing between local storage and Firestore, resolving email verification issues, and enhancing subscription logic in RevenueCat. Additionally, I’ll focus on improving the user experience through streamlined onboarding and clearer navigation. My previous projects include apps requiring similar functionalities, emphasizing clean code and performance. I estimate that these updates can be completed in about three days, allowing for thorough testing to ensure everything runs smoothly. What specific features would you like to prioritize first?

@Zeeshan0489

Hello, I’ve reviewed your Flutter app update needs and I’m confident I can tighten offline-first data sync with Firestore, fix RevenueCat integration, and fine-tune UX efficiently, without a full rebuild. My approach focuses on robust offline storage, reliable online sync with deduplication, and secure, user-isolated Firestore rules to support cross-device usage. I’ll align Firebase Auth with custom domains and email deliverability best practices (SPF/DKIM/DMARC) and refine email templates for better inbox delivery. For RevenueCat, I’ll verify the subscription flow, address trial fetch limits, update UI states (trial, monthly, annual, expired), and ensure smooth restore purchases. UX improvements will streamline onboarding, navigation clarity, and highlight core actions. I’ll also squeeze additional performance from the existing scraping logic and modernize the external calendar display. Key experience: Flutter apps with Firebase Auth/Firestore, RevenueCat, offline-first data sync, and pragmatic UX enhancements. I’ve delivered similar updates on apps with offline sync and subscription management, ensuring maintainable, clean code. What you’ll get: a concise, well-structured update plan with clear milestones and a tested rollout. I propose starting immediately with a 4-day window, delivering the Firestore sync, email deliverability refresh, and RevenueCat fixes, followed by UX tweaks in the final pass. Examples of similar work: - Flutter/Firebase projects with offline sync

@Apurva510

As a thorough and experienced professional in mobile app development, I strongly believe I'm the ideal candidate for your project. With my extensive 7+ years of experience with Flutter, Firebase, and RevenueCat integration, I've successfully delivered projects with similar requirements enhancing offline support, implementing Firebase Firestore sync and resolving revenue management issues. These features are what your app needs! Moreover, my proficiency with HTML, clean coding practices and my keen eye for design will greatly assist me as I improve your user experience through intuitive navigations, simplifying onboarding and enhancing the overall UX. The scraping speed optimization you required is another aspect where my skills would provide meaningful value if possible. With a proven track record of delivering quality-assured products within tight deadlines, I assure you that your project will be completed promptly without compromising quality. Drawing upon my prior experiences and maintaining high coding standards, I can estimate the timeline for this job at a few days as you require. Let's optimize your existing incredible app together! Don't hesitate to reach out to me for a discussion or any queries you may have. Looking forward to taking your Flutter app to new heights! With Regards! Apurva

@mohjib092

Hello There, I’m an experienced Flutter developer with strong background in Firebase Firestore Auth RevenueCat and offline-first apps I can quickly review your existing codebase sync local storage with Firestore fix email verification and deliverability resolve RevenueCat subscription issues and improve overall UX without a rebuild I’ve worked on similar production Flutter apps and this scope can be completed within a few days depending on final review Happy to start immediately and share relevant work samples Best regards Muhammad JIbran Ahmed

@codefusion53

Hi I can step in and refine your existing Flutter app quickly and cleanly without disrupting what already works. I have hands on experience with Flutter apps that use Firebase Firestore Auth and RevenueCat, especially offline first data sync and subscription state handling. For data sync I will keep your local storage intact while implementing reliable Firestore synchronization with unique IDs to prevent duplicates and seamless offline to online recovery across devices. Firestore security rules will be tightened so users can only access their own data. I will fix the email verification deliverability by configuring Firebase Auth with your custom domain and setting up SPF DKIM and DMARC correctly so verification emails land in inboxes. Subscription logic will be audited and corrected to ensure trial limits restore purchases and UI states are always accurate. UX improvements will focus on simplifying onboarding clarifying navigation and making primary actions obvious. I can also review scraping performance and adjust the calendar display formatting. The result will be a smoother more reliable app with clean maintainable code delivered in a short timeframe. Best, Justin

@chiragkohli

Hello, I have solid experience working with existing Flutter apps using Firebase (Auth + Firestore), offline-first data sync, and RevenueCat subscriptions. I clearly understand this is a refinement and stabilization task, not a rebuild, and should be completed efficiently by an experienced developer. I’ve implemented local storage ↔ Firestore sync with offline/online reconciliation, unique IDs, and secure user-only rules. I’ve also fixed Firebase email deliverability issues (custom domains, SPF/DKIM/DMARC) and debugged RevenueCat trial, entitlement, and restore logic across devices. Scope of Work -Offline-first sync: local storage ↔ Firestore with de-duplication and cross-device sync -Secure Firestore rules (user-scoped access) -Fix Firebase Auth email verification + inbox deliverability -RevenueCat fixes: trials, limits, UI states, restore purchase -UX refinements (onboarding, navigation, main actions) -Minor performance improvements (scraping, calendar formatting) Skills & Expertise -Flutter (production apps) -Firebase Auth & Firestore -Offline data sync & conflict handling -RevenueCat subscriptions -Email deliverability (SPF, DKIM, DMARC) -Clean, maintainable code Estimated timeline: 3–5 days, depending on testing cycles. I’m happy to share similar Flutter/Firebase projects and jump on a quick call to align before starting

@mubeenm5026

As the CEO of an esteemed AI and mobile app development company, I’m excited to extend my team's expertise to your project. We have extensive experience in Flutter, Firebase, RevenueCat, and web scraping – the exact skills needed to update and refine your existing mobile app. Most importantly, we have the knack for handling apps with clean well-documented codebase and delivering them on-time. In terms of similar projects, we recently built a cross-device syncing app where local storage data was seamlessly synced with Google Firestore. We implemented unique data handling techniques that ensured there were no duplicate entries even during offline-to-online transitions. Additionally, we've integrated Firebase Auth and RevenueCat subscription as part of several apps we've designed over the years — so it’s safe to say we are well-versed in these functionalities. Our UX/UI design team is another strength we can bring to your project. We understand the importance of a simple yet intuitive interface. For instance, in one of our recent projects, we simplified the onboarding process which saw an impressive increase in user retention metrics. Regarding timeline, given the scale of improvements required for your already-built app, we anticipate completing this within a week without compromising on quality or functionality. Choose us and let's give your subscribers and users the smoothest experience possible

@rbtech1984

Hi There!!! ⚜⭐⭐⭐⭐⚜((UPDATE AND REFINE FLUTTER APP WITH FIREBASE SYNC, REVENUECAT FIX, AND UX IMPROVEMENTS))⚜⭐⭐⭐⭐⚜ I see you need targeted updates to your Flutter app, including offline-first Firebase sync, RevenueCat subscription fixes, and user experience refinements. Ensuring reliable cross-device sync and smooth subscription handling is crucial for user satisfaction. I bring strong experience in Flutter development, Firebase integration, RevenueCat management, and offline-first app architecture. I focus on clean, maintainable code that improves performance and reliability. My approach will secure Firestore access, eliminate sync duplicates, optimize email delivery, and enhance onboarding and navigation. Key features I will deliver include reliable offline-to-online sync, accurate subscription and trial handling, and improved user interface clarity for main actions. I would be glad to discuss your priorities and get these updates implemented quickly and efficiently. Warm Regards, Farhin B.

@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, specifically in Flutter, I have successfully implemented crucial features including Firebase integration and offline-first data handling. Your project’s scope, updating Firebase sync, fixing RevenueCat subscription issues, and refining UX, aligns perfectly with my expertise. I focus on clean architecture and scalable solutions to ensure your app not only meets its immediate needs but is also well-prepared for future updates. I have successfully completed similar projects where I’ve optimized offline capabilities and enhanced user experience significantly. 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: 1. Do you have a specific timeline in mind for completion? Could you clarify: 1. Do you have a specific timeline in mind for completion? Let’s discuss over chat! Regards, Arpit

@denisSolution

Hello, client I'm Denis Redzepovic, an experienced developer skilled in Mobile App Development, Web Scraping, Amazon Web Services, PHP, HTML, Website Design, UX / User Experience and Flutter. I specialize in building high-performance, scalable, and visually appealing applications that deliver smooth functionality and a seamless user experience. Whether you need full app development, UI/UX improvements, API integrations, or performance optimizations, I can provide a tailored solution that fits your needs. I focus on clean, maintainable code with responsive UI, smooth animations, robust state management, and seamless API integration. My approach ensures scalable architecture and pixel-perfect design, delivering consistent performance across Android and iOS platforms. With cross-platform efficiency and attention to detail, I’m confident I can add strong value to your project. I’d love to discuss your requirements and find the best approach to bring your vision to life. Thanks, Denis

@johnallenvillan1

Hello, I am an experienced Flutter developer with expertise in Firebase, RevenueCat, and UX improvements. I have worked on similar projects involving Firebase backend, RevenueCat integration, and web scraping. I will update and refine the features as per your requirements, ensuring offline support, email verification, subscription fixes, and UX enhancements. My clean, maintainable code approach will ensure a smooth transition and improved user experience. Looking forward to delivering quality results quickly. What are your thoughts on moving forward with this project?

@brayanstiven5

Hi, there, I am an experienced Flutter developer with a strong background in Firebase, RevenueCat integration, and clean code practices. I have successfully completed similar projects involving UX improvements and backend optimizations. With my expertise, I will efficiently update and refine your Flutter app with the following solution: ✅ Utilize local storage for offline mode and synchronize data with Firebase Firestore, ensuring seamless cross-device sync and preventing duplicates. ✅ Configure Firebase Auth for custom domain email verification, implement email authentication best practices, and enhance email templates for reliable inbox delivery. ✅ Validate subscription logic, address free trial limitations, update UI status, and verify restore purchase functionality within RevenueCat. ✅ Streamline onboarding, enhance navigation clarity, and optimize main actions for a more intuitive user experience. ✅ Fine-tune scraping speed, and enhance the display format of the external calendar integration. I have previously worked on similar projects, estimating a quick turnaround time of a few days to complete the necessary updates. I look forward to working with you. Best Regards, Brayan

@Azursol

Dear Wisken W. Wisken, I am a seasoned Flutter developer with expertise in Firebase, RevenueCat, and web scraping. Your project for updating and refining features in your existing Flutter mobile app aligns perfectly with my skill set. I have successfully implemented similar functionalities in past projects, ensuring seamless offline support, secure data sync, and improved user experience. My approach involves meticulous syncing of local storage with Firestore, fixing email verification issues, addressing RevenueCat subscription logic, and enhancing UX elements for better usability. I prioritize clean, maintainable code and efficient data handling for optimal performance. I invite you to review my portfolio for relevant projects and discuss how I can deliver reliable solutions within your timeline. Let's collaborate to enhance your app effectively. Looking forward to further discussing your project requirements. Warm regards,