Revitalize Flutter App & Database

@KESHAVINFOTECH

Hi, The main risk is modernizing the app in stages while legacy database, auth, and payment flows remain tied to deprecated code. I would start by mapping the current data flow end to end, then refactor the Dart models and repository layer so the new SQL schema is supported cleanly without breaking existing screens or slowing CRUD. Next, I’d update the UI to match your current Flutter design system while preserving navigation logic. Priority would be the backend/database switch, followed by Firebase Messaging migration, auth/token updates, and payment plugin replacement. Each step would be tested on real iOS and Android builds to catch deprecation issues early. Relevant experience: - Audit models, queries, and data flow - Rework app for a new SQL database - Modernize key Flutter screens - Update push, auth, and payment packages - Validate staging builds on iOS and Android Timeline: I can begin with the audit immediately and share the first implementation plan after reviewing the current codebase and schema. Could you share whether the new SQL schema is finalized, or should I adapt the existing models to it?

@extreamcode

Hi, I can see the real challenge here: the app isn’t just outdated, it’s drifting from its foundation. I’ll reconnect the Flutter app to the new SQL database, refactor the Dart models and queries for the updated schema, and modernize the UI with current Flutter material patterns without changing the navigation flow. I’ve handled Flutter app updates, API/database refactors, Firebase Messaging migrations, auth refresh flows, and payment plugin replacements, so I can approach this cleanly and with minimal disruption. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. I’ll keep the work organized in clear commits for the database refactor, UI refresh, and each feature upgrade, then verify everything on iOS and Android with staging checks for CRUD, push notifications, sign-in, and payments. Which SQL database and payment gateway are you moving to, so I can align the refactor and checkout flow properly? Thanks, Asad

@joomextensions

I can revitalize your Flutter app end-to-end. I'll migrate the backend connection from your legacy system to the new SQL database, refactoring all Dart data models and queries to match the new schema cleanly and efficiently. Alongside the database work, I'll modernize the UI with updated typography, spacing, and Material 3 components following the latest Flutter guidelines—same navigation flow, fresher look. I'll also update Firebase Messaging to the latest APIs, refresh the authentication flow with proper token handling, and replace deprecated payment plugins with maintained equivalents, running full test transactions to verify everything works. Deliverables include a clean Git history, successful builds on both iOS and Android, and working CRUD, push notifications, auth, and payments. Regards, Harsh Thoriya

@ambientinfotech

Hi, I can help you build a high-quality Flutter mobile application with clean UI/UX, fast performance, and scalable architecture. I have strong experience in Flutter app development, API integration, Firebase, custom backend systems, ERP/CRM integration, and eCommerce/mobile solutions. ✅ Cross-platform Android & iOS apps ✅ Clean and responsive UI/UX ✅ API & payment gateway integration ✅ Admin panel & backend support ✅ Fast communication & on-time delivery ✅ Long-term maintenance support I focus on delivering stable, user-friendly, and production-ready applications with complete client satisfaction. Let’s connect and discuss your project requirements in detail. Thanks, Ambient Infotech

@ioswithfaisal

Building on 6 years of accomplished experience, I, Faisal am an adept developer with a strong focus on mobile app development. My technical prowess spans across multiple platforms including web, iOS, Android, and most significantly Flutter - the framework powering your existing application. Tackling everything from database refactoring to UI redesign and feature updating, I'm poised to give your Flutter app a much-needed facelift. My skillfulness goes beyond just working with different tech stacks - It's about understanding each platform’s nuance and ensuring my solutions offer a seamless and high-performance user-experience. This is exactly what you require for your project; transformation without altering your app’s overall architecture. I'll diligently refactor the data models and queries to harmoniously work with the new SQL-based database while keeping performance at its peak. By choosing me, you'll gain access to a developer who always puts client satisfaction first. Expect clean commits in your Git repository throughout the project showing the progress made with each aspect - from database refactor to UI modernization and updating features such as push notifications, user authentication, and payment gateway all while making sure that they run smoothly on both iOS and Android devices . Most importantly, I will deliver a polished application that meets the desired benchmarks of your project for effective usage.

@rbtech1984

Hi There!!! ★★★★ ( Flutter app revamp with SQL migration & modern UI upgrade ) ★★★★ Project understanding: You need to update existing Flutter app by moving legacy backend to new SQL database, refactoring Dart models and APIs, and improving UI using latest Material design. Also upgrading Firebase notifications, authentication flow, and payment gateway while keeping current app navigation same. Services: ⚜ UI modern Flutter upgrade ⚜ SQL migration + query setup ⚜ Dart/API refactoring ⚜ Firebase push notifications update ⚜ Auth & social login fix ⚜ Payment gateway integration update ⚜ Git commits + staging verification I have experience in Flutter apps, backend API integration and database work. I will carefully refactor your code, connect new DB, and ensure all features work smoothly on both Android and iOS without errors or deprecated issues. Let’s connect and proceed further. Warm Regards, Farhin B.

@solutionsplayers

With over 6 years of experience as both a PHP and Flutter developer, I understand the challenges that come with updating a legacy system and the importance of modernizing a user interface while maintaining its original functionality. My expertise in PHP development and my intimate knowledge of SQL databases will prove invaluable in refactoring your app's backend to seamlessly integrate with a new database. Additionally, my proficiency in Flutter ensures that your application will work flawlessly on both iOS and Android devices. When it comes to updating and refreshing an application, I am well-versed in implementing modern design patterns while preserving the essential elements that users are familiar with. My UI/UX skills will allow me to expertly navigate the facelift your app needs, ensuring that the changes implemented align with the latest Flutter guidelines. Lastly, I am no stranger to coordinating complex updates involving crucial functionalities like Push notifications, User authentication, and Payment gateway. My skillset includes Firebase Messaging APIs integration, secure payment gateways implementation, and logging in through social media accounts using SK versions. Moreover, rest assured I will set up a staging environment where we can thoroughly test each feature to ensure reliable delivery. Let's work together to give your app the revitalization it deserves!

@AnumFatima210

Hello, I came across your Revitalize Flutter App & Database and I am very interested in working with you. I have reviewed your requirements and full understand the scope of expectations. I specialize in PHP, Website Design, and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity and professionalism. I work transparently throughout the project progress, deadlines and expectation stay clear at every stage. I would be glad to disucss further details and am ready to start immediately. Looking forward to hearing from you. Regards. Anum

@waqaswebmaster

Hi, This looks less like a simple Flutter refresh and more like a controlled modernization of an app that already has moving parts. The safest approach is to separate the work into clear commits: database migration/refactor, UI facelift, Firebase Messaging update, authentication cleanup, and payment gateway replacement. I can update the Flutter app to connect with the new SQL-based backend, refactor the Dart models and queries around the new schema, modernize the UI using current Flutter/Material patterns without changing the existing navigation flow, and replace outdated notification, auth, and payment packages with maintained versions. Each part will be tested on iOS and Android so the staging build proves CRUD, push notifications, sign-in/sign-up, and payment flow are working end-to-end. I’ll keep the Git history clean and provide a clear handover so you can review exactly what changed in each area. Waqas Ahmed

@freelancerimra59

I am 100% confident in revitalizing your Flutter application by refactoring your data models for the new SQL backend, applying modern material design principles, and migrating your aging features to the latest SDKs. I specialize in clean-code migrations, ensuring your Firebase Messaging, authentication flows, and payment gateways are fully updated and performant on both iOS and Android. My approach prioritizes stability and clean Git commit history, ensuring every module—from CRUD operations on your new SQL schema to the updated checkout flow—is rigorously tested and deprecation-free. You will receive a modernized, secure, and fully functional app ready for the current mobile landscape. To ensure a seamless transition to the new SQL schema, have you already finalized the new database documentation, or would you like me to assist in mapping the legacy data structure to your new SQL schema?

@maryam951

As a professional with over 4 years of experience in website development, I am well-versed in handling complex and extensive projects like yours. My expertise spans not only the niche of Flutter, but also PHP and Website Design, which makes me well-equipped to meet all your multifaceted needs. I have successfully built and upgraded diverse applications, steadily modernizing them in line with emerging technologies. I understand that your app needs both a technological upgrade and a fresh visual look. Having worked across various databases and back-end systems, I can ensure a smooth transition with minimal disruption while optimizing your app's performance. To tackle the UI refresh goal, my design acumen, coupled with my command over exaggerated typography, proper spacing, and emphasis on material components as per Flutter guidelines can help give a contemporary facelift to your app without losing its core identity.

@mobiwebsolutions

✋ Hi There!!! ✋ The Goal of the project:- UPGRADE AND REVITALIZE EXISTING FLUTTER APPLICATION WITH NEW SQL DATABASE INTEGRATION UI MODERNIZATION AND CORE FEATURE UPDATES I have carefully reviewed your requirement to refactor a legacy Flutter app, connect it to a new SQL database, modernize UI using latest Flutter design guidelines, and update key services like notifications authentication and payments. I am best fit for this project because I specialize in Flutter modernization and backend integration with clean scalable architecture. 1 Migration from legacy backend to new SQL database with proper Dart model refactoring 2 Upgrade UI using latest Flutter material design with improved UX while keeping flow intact 3 Update Firebase messaging authentication and payment gateway with full testing and deployment readiness UI redesign, database management, testing, debugging, and full source code delivery at completion included. 9+ years experience as a full stack developer working on Flutter apps backend systems and mobile modernization projects. I have completed similar Flutter upgrade and migration projects with database refactoring and API modernization. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!

@nutankumarftp

As an experienced full-stack developer with extensive knowledge in modern database management, including SQL, I am confident that I can revitalize your Flutter app and database seamlessly. Throughout my decade in the field, I have mastered working with API integrations and third-party services, demystifying complex systems to create efficient and scalable solutions – which aligns perfectly with optimizing your new SQL-based database. Furthermore, I specialize in not just backend but frontend development as well, mastering contemporary UI design trends. By refreshing your app's typography, spacing and incorporating material components per the latest Flutter guidelines, I'll provide a much-needed rejuvenation without disrupting the existing navigation flow. Rest assured, my clean commits history on Git will testify my dedication to bringing your vision to reality.

@jamik414

Hello, I am excited about the opportunity to revitalize your Flutter app and database. My approach will involve seamlessly transitioning the app to a new SQL-based database, refactoring data models and queries for optimal performance, and modernizing the UI to align with the latest Flutter design patterns. I will ensure a smooth process by conducting a thorough review of the existing codebase, implementing the necessary backend changes, and updating key features such as push notifications, user authentication, and payment gateway integration. Testing will be a crucial part of the process to guarantee a bug-free and optimized application. I will maintain clear communication throughout the project to address any concerns promptly and ensure a successful outcome based on the outlined acceptance criteria. Best regards, Jamila

@ayesha86664

Hi there! I understand your Flutter app is outdated in both backend connection and UI, and you need a clean modern upgrade without breaking existing user flow. Old database dependencies and deprecated packages can easily cause crashes and performance issues if not handled carefully. I have experience working with Flutter app refactoring, SQL database integration, and migrating legacy backends to modern APIs. I have also updated Flutter apps with latest Firebase Messaging, authentication flows, and payment gateway replacements while keeping production stability. My approach is to first refactor the backend connection layer and map all existing Dart models to the new SQL schema. Then I will modernise the UI using latest Material 3 components, improved spacing, and updated typography without changing navigation flow. After that I will upgrade push notifications using latest Firebase APIs, fix authentication token handling, and replace deprecated payment plugins with stable versions. Finally I will ensure full testing on iOS and Android with clean builds and working CRUD operations on the new database. check our work [https://www.freelancer.com/u/ayesha86664](https://www.freelancer.com/u/ayesha86664) Which SQL database are you planning to use for the new backend (MySQL, PostgreSQL, or other)? Let me know if you’re interested & we can discuss it. Best Regards Ayesha

@ZeeshanA10

Hi, I can revamp your existing Flutter app, connect it to the new SQL-based backend, refactor the Dart models/API layer, and modernize the UI without changing the current navigation flow. I will also update Firebase push notifications, authentication/social login packages, and token handling, and replace deprecated payment plugins with maintained, secure alternatives. Each change will be committed clearly in Git, so your team can review the database refactor, UI refresh, and feature updates separately. I have strong experience with Flutter, REST APIs, SQL-backed systems, Firebase Messaging, authentication flows, payment integrations, and production builds for both iOS and Android. I can start immediately, first audit the existing codebase, then deliver a stable build with CRUD, notifications, auth, and payments fully tested in staging. Regards, Muhammad

@ahsaans

Hi, I can revamp your existing Flutter app and bring it up to date with the latest Flutter standards. I'll migrate the app from the legacy backend to your new SQL database, refactor the data models and CRUD operations, and modernize the UI while keeping the existing navigation intact. I'll also update Firebase Push Notifications, authentication flow, social login packages, and payment gateway integrations using the latest supported libraries. The project will include clean Git commits, well-structured code, testing on both Android and iOS, and verification of database connectivity, notifications, authentication, and payment flow. I'm ready to start immediately and deliver a stable, production-ready app.

@omarz33

Hello there! I am eager to revitalize your Flutter app and database, addressing both the tech stack and visual aspects. By establishing a fresh connection to a new SQL-based database, refactoring data models, and optimizing queries, I will ensure seamless performance while modernizing the UI to align with current design patterns. I will update features such as push notifications using the latest Firebase Messaging APIs, revamp user authentication flows, and enhance the payment gateway for secure transactions. My expertise in Flutter development, SQL databases, and integrating APIs will guarantee a successful project outcome. Let's discuss how I can breathe new life into your app and deliver exceptional results. Looking forward to further collaboration.

@mahads31

Having worked with multiple international clients across various industries, my team at Solves Inn has gained extensive expertise in transforming outdated, underperforming systems into smart, scalable, and future-ready digital solutions. We not only possess the technical skills required for this project (such as Mobile App Development, PHP, SQL and User Interface/IA) but deeply understand the value of designing applications that align with your long-term business growth. From database refactoring to revitalizing UI experience, we'll ensure that all aspects of your Flutter app are top-notch. With clean and efficient code commits maintained in a Git repository, we'll demonstrate the successful build and run of the app on both iOS and Android devices without any deprecation warnings. Our proficiency extends to areas like push notifications using up-to-date Firebase Messaging APIs, modernizing user authentication and enhancing payment gateways. We will ensure every functionality is thoroughly tested to guarantee seamless operations in production. Trust us to give you a transformed app that looks great aesthetically, functions optimally and conforms to the latest Flutter guidelines. Let's make your app cutting-edge again!