Rebuild and Enhance Mobile Application (Asaas)

@diektech

Hi — Elias here from Miami. I see you're looking to rebuild and enhance your mobile application. The goal is to create a seamless experience on both iOS and Android while integrating backend functionalities effectively. What usually matters most here is ensuring that the app not only performs well but is also easily maintainable and scalable. A common issue in projects like this can be managing the complexity of user roles and permissions, especially when integrating with APIs. The tricky part is usually ensuring a consistent experience across different devices and operating systems. My approach would involve structuring the app with a focus on clean architecture and modular components. This makes future updates easier and allows for scalability without major overhauls. I've worked on similar mobile platforms where I prioritized stability and maintainability, ensuring a solid foundation for ongoing development. A few questions to better understand the scope: Q1 – What specific features are you looking to enhance or rebuild? Q2 – How do you envision the user roles and permissions working within the app? Q3 – Are there any existing backend systems that need to be integrated? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.

@ahmadayaz

As an experienced mobile app developer, I understand the need to rebuild your existing app for iOS and Android to match your website's design and functionality while integrating it with your backend/API. With expertise in replicating web designs, I recommend a native approach for optimal performance. I have a proven track record in developing robust mobile applications, ensuring quality and maintainability. I estimate a timeline of X weeks for design replication, testing, and submissions, with costs detailed after discussion. I aim to establish a long-term partnership focused on your app's growth and success. Let's discuss scalability, integrations, and long-term expectations to deliver a high-quality product aligned with your vision seamlessly on both platforms.

@Hubready

Hello!, This is James from Hollywood... I read your project description carefully, and I understand the goal is to rebuild and enhance the Asaas mobile app for iOS and Android with strong API/backend integration, stability, and a better user experience. I’ve been building mobile and backend systems for about 15 years, and I’ve worked on cross-platform apps, API-driven products, and production systems where reliability matters. My approach would be: 1. Review the current app flow and tech stack 2. Audit API/backend dependencies and identify what should be rebuilt vs improved 3. Improve the mobile experience for performance and usability 4. Test thoroughly on both platforms before delivery Relevant work I’ve done includes a fintech wallet app with secure API integration, a delivery app with real-time tracking, a service booking app with backend sync, and a subscription dashboard app with mobile-first UX. Could you please clarify the following questions to help me better understand the project? 1. Is this a rebuild from an existing codebase, or are we starting fresh? 2. Which area needs the most attention: UI/UX, performance, backend/API logic, or all of them? 3. Do you already have design files and API documentation available? I’m very detail-focused, so I like to catch issues early and avoid messy revisions later. If you want someone who takes ownership and understands the real goal, I’d be glad to chat and map out the best path forward.

@rajat07me

I’ve reviewed the brief, and this is clearly more than a small app update — you need a proper rebuild for both iOS and Android using the website as the main reference. Since you already have the website code, backend/API, and existing app source, I can review what is reusable and recommend the best approach for performance and maintainability. I can handle the full process through to testing and store submission as requested. Happy to discuss the app structure and recommended stack here on the platform.

@webnautical

As an experienced developer, with a proven track record of over 100 successful projects, I strongly believe that my team at Web Nautical is the best fit for your project. With our extensive knowledge in Android and iOS development, we have the capabilities to deliver a rebuild of your ASASS mobile application that not only replicates the functionality and design of your website but also enhances its performance and user experience. Our technical stack aligns perfectly with your project requirements, including experience in technologies like React, Node.js, Python, FastAPI and more. This equips us to confidently handle your project with the utmost professionalism and quality. Your requested recommendation for technology/architecture will be promptly presented, along with its benefits for the specific requirements. Choosing us would mean getting not just competent developers but also a comprehensive digital solution team that includes AI and Machine Learning expertise which can be integrated into your Android and iOS applications to give you a significant competitive edge in the market. Let's transform your business with smart designs that resonate with users while ensuring fast delivery and clean code

@HamparProd

Hi, I can take full responsibility for rebuilding the iOS and Android apps around the current Asaas website and backend, rather than trying to patch the old Supabase-based mobile implementation. My first step would be to audit the existing app source, React website, API contracts, auth flow, data models and any mobile-specific functionality. From there I’ll identify what can be reused safely and what should be replaced. I recommend Flutter for a single maintainable mobile codebase with strong performance and consistent UI across iOS/Android. The mobile web experience will be treated as the source of truth for screens, colours, flows and functionality, while adapting interaction patterns appropriately for native devices. The rebuild will include backend/API integration, authentication/session handling, responsive mobile UI, error/offline states, push integration where required, testing on real devices, production build configuration, and App Store/Google Play submission support. I’ll keep the code modular and documented so future updates do not depend on the original Supabase architecture.

@jitendras097

Hi, I understand you want a complete rebuild, with the existing website treated as the source of truth for design, functionality, colours and overall user experience—not just a few fixes to the current app. I’m Jitendra, a full-stack developer with 10+ years of experience, and I have already built similar mobile applications by converting existing web platforms into production-ready iOS and Android apps while integrating existing APIs and backend systems. I would first audit the React website, existing app and current APIs, then recommend the best architecture. For this type of rebuild, I can use React Native where shared code and close UI parity make sense, while keeping the app optimized for native device behaviour and performance. I’ll handle: * Complete iOS and Android rebuild * Pixel-close implementation of the website experience * Existing backend/API integration * Reuse/refactoring of existing code where practical * Real-device testing and bug fixing * Performance and responsive UX * Production builds and App Store/Google Play submission Everything can be developed through your repositories and infrastructure, giving you full ownership of the final source code. I can share relevant published apps and discuss the website/API structure before confirming the final timeline and fixed cost. Thanks, Jitendra

@ciss26

Hi there, Hope you are doing well I’d love to help rebuild and enhance your Asaas mobile application for both iOS and Android, using your existing React website as the primary source of truth for design, functionality, and user experience. We have experience developing and modernizing cross-platform mobile applications, integrating existing APIs/backend systems, and taking applications through testing and App Store/Google Play deployment. Why We’re a Good Fit Experience with Flutter, React Native, React, Node.js, and REST APIs Strong UI/UX implementation with pixel-accurate responsive interfaces Experience integrating existing backend/API infrastructure Ability to review and reuse existing mobile code where practical Real-device testing across iOS and Android Complete App Store and Google Play submission support Clean, scalable, and maintainable architecture Recommended Tech Stack Mobile: Flutter / Dart Backend: Existing API/server infrastructure Database: Existing backend database Authentication: Existing API authentication Thanks & Regards Dheeraj K.

@codefusion53

Hi, I can take full ownership of rebuilding your iOS and Android apps, using the mobile website as the source of truth rather than simply patching the legacy application. I would first audit the React website, existing app source and current API to identify reusable business logic and any Supabase dependencies that must be removed. Based on that review, I would likely recommend React Native with TypeScript because your web product is already React-based, while keeping the mobile architecture clean and independent where native functionality is required. I will reproduce the website's UX, colours and functionality, integrate your self-hosted backend, resolve existing issues, and test authentication, API flows, navigation and device-specific behaviour on real iOS and Android hardware. Delivery includes production builds, source code, documentation, QA, and complete App Store and Google Play submission support. Best, Justin

@CodeAnchors

Hello, I hope this message finds you well. I have a clear understanding of your project requirements for rebuilding and enhancing the Asaas mobile application for iOS and Android. My expertise in Mobile App Development, iOS Development, Android App Development, and API Integration aligns perfectly with the objectives you have outlined. My approach involves structured requirement confirmation, controlled planning, clean implementation, thorough testing, and milestone-based transparency to ensure a successful project delivery. With a strong portfolio in mobile app development, I am confident in my ability to provide reliable execution and long-term results for your project. Could you please provide more insights into your top priority or key business goal for this project? I believe understanding this will help in finalizing the scope smoothly. You can view my portfolio here: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ Best regards, Muhammad Anas Khan

@denisSolution

Hello, Rebuilding a mobile app to match an existing web product while integrating with a custom backend is mostly about keeping the UI consistent and the state in sync across platforms. The main challenge will be translating the React-based UI into mobile components without losing performance or making the codebase difficult to maintain. I’ve done similar work before on a product like Leadfish, where we rebuilt a complex web dashboard into a native mobile app with real-time data sync. The part that usually needs the most attention is making sure the mobile UI feels native while keeping the logic consistent with the web version, especially when dealing with form-heavy workflows or real-time updates. For this, I’d recommend going with React Native since the client already has a React frontend. It allows reusing a lot of the business logic while still delivering a polished native experience. The biggest risk is running into subtle UI differences between platforms, so I’d plan to test early on both iOS and Android devices rather than assuming one will work just because the other does. Thanks, Denis

@BarryCrouch

Hello, Migrating from Supabase to a custom backend while rebuilding the app means authentication tokens and real-time subscriptions won’t transfer directly, causing silent login failures or stale data even if API endpoints respond correctly in Postman. This is the most common point of failure in Supabase-to-custom migrations, and it’s rarely caught until test builds reach real devices. The approach would prioritize mapping the existing Supabase auth flow to your new backend’s token structure first, then rebuild UI screens only after confirming session persistence works end-to-end. That prevents building polished interfaces that can’t actually authenticate users. Since the website is React-based and you already have source code, React Native would minimize design/functionality drift versus Flutter or native — shared component logic reduces translation errors, and your team can reuse web state management patterns. Existing app code would be audited for reusable business logic, not UI. Two questions to confirm migration path: Does your new backend use JWTs with the same claim structure as Supabase, or a different auth scheme? Are there any Supabase Realtime subscriptions currently used in the app that need WebSocket equivalents? A sensible next step is sharing the current app source code and your new backend’s API documentation so I can map the auth/session handoff before recommending final architecture. have a nice day.

@mahig47

Hello! As per your project post, you are looking to rebuild and enhance the existing Asaas mobile application for iOS and Android, using the current website as the source of truth for design, functionality, colours, and overall user experience. The project will involve reviewing the existing mobile app and backend, reusing suitable code where practical, fixing current issues, and delivering production ready applications. My focus will be on creating a mobile experience that closely matches the website while still feeling natural and responsive on iOS and Android. I will review the existing source code and API structure first, recommend the most suitable cross platform or native approach, then rebuild the required flows, test them on real devices, and prepare both applications for store submission. I specialize in mobile application development, React based platforms, API integrations, application modernization, cross platform development, testing, and production deployments. I can take ownership of the complete rebuild rather than limiting the work to incremental changes in the existing application. Let’s connect to review the existing website, mobile application, source code, and API structure so we can define the right approach for a complete and reliable rebuild. Best regards, Nikita Gupta

@vladang

The biggest rebuild risk is hidden Supabase coupling in the current app, not the UI. I’d start by auditing both codebases and mapping the mobile website’s screens and flows against the current API. My recommendation is React Native with TypeScript: the React project may offer reusable types, validation, and API logic, while the mobile UI should be rebuilt properly rather than wrapping the website. I’d specifically trace old Supabase auth/session calls and replace them without breaking persisted logins or API error handling. I can own the rebuild through real-device testing and both store submissions. A reliable timeframe and cost need the actual screen/API scope, not a blind guess. Could you share a test login and API documentation so I can return a feature map with a firm estimate?

@ZohaibRoy

⭐⭐⭐⭐⭐ Build Your Mobile App for iOS & Android with Expert Developers ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project needs and see you are looking for a skilled mobile app developer. Look no further; Zohaib is here to help you! My team has completed over 50 similar projects for mobile app development. We will rebuild your app to match your website closely in design, colors, and functionality, ensuring a seamless user experience. ➡️ Why Me? I can easily handle your mobile app development project as I have 5 years of experience in mobile app creation, focusing on both iOS and Android. My skills include working with React, API integration, and user interface design. Additionally, I have a strong grip on backend systems and cloud infrastructure, which will ensure a smooth development process. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ Mobile App Development ✅ iOS & Android Platforms ✅ React Development ✅ API Integration ✅ User Interface Design ✅ Code Review & Optimization ✅ Cloud Infrastructure ✅ App Testing ✅ App Store Submission ✅ Google Play Submission ✅ Problem Solving ✅ Backend Development Waiting for your response! Best Regards, Zohaib

@kishanbwts

I can rebuild your iOS and Android apps to match the website’s design and functionality closely, ensuring a seamless user experience on mobile. I’ve helped clients in fintech and service platforms recreate their apps from web versions, integrating with custom backend APIs while improving performance and polish. Given the existing React website and your custom backend, I recommend using React Native or Flutter for maintainability and near-native performance, but I’m open to discussing other options if you have preferences. I’ll review your current Android app code to reuse stable parts and identify fixes, speeding up development. Do you have any analytics or user feedback from the current app to flag priority issues? Also, should the rebuilt app support offline mode or push notifications? I’ll fully own the process from development to final testing on real devices and handle both App Store and Google Play submissions. With clear access to your backend and assets, this can be done in about 8–10 weeks. Ready to start rebuilding your app to match your website and deliver a polished mobile experience.

@Infineosoft

Hi, We can take full responsibility for rebuilding your existing ASaaS mobile app, using the React website as the definitive source of truth for design, functionality, navigation, colours, and overall UX. Development process: • Audit website, existing app and API • Map website functionality to mobile UX • Rebuild screens/components to closely match the website • Integrate and test your current backend/API • Reuse existing code where beneficial • Implement authentication, navigation and all required functionality • Test on real iOS/Android devices • Fix performance/UI issues and edge cases • Prepare production builds and handle App Store/Google Play submission Estimated timeframe: 8–12 weeks, depending on the existing feature scope. Estimated cost: after reviewing the source code and complete functionality. I’d be happy to review the website and existing source code and provide a precise fixed quote and milestone plan. Infineosoft

@Joya1996

This sounds like a serious rebuild project, and I like that you already have the website, API, server infrastructure, and previous app code available. That gives a strong foundation to rebuild the iOS and Android apps properly while keeping the experience aligned with your website. I can help with architecture recommendation, implementation, testing on real devices, issue fixing, and final publishing. You’ll get a clean and maintainable result rather than a temporary workaround.

@naminghn

Hi there, I can help rebuild and enhance your mobile application for both iOS and Android, closely aligning with your existing website's design and functionality. Given that the website is built using React, I recommend leveraging React Native or Flutter, as these frameworks offer excellent performance and maintainability while ensuring a native feel for users on both platforms. I have experience with mobile app development and API integration, which will allow me to effectively utilize your existing backend. I can handle the submission process for both the App Store and Google Play, ensuring a smooth launch. Your satisfaction is my priority and I guarantee that I will deliver you a high-quality result. Regards, Ali