Flutter Mobile App Development Expert

@irsolutions

Experienced Flutter Mobile App Development Expert I understand your need for a skilled solo Flutter developer to create a top-notch mobile app for iOS and Android. Your project requires user authentication, responsive UI, API integration, real-time data handling, in-app purchases, subscriptions, and notifications to achieve a fast and scalable app with a seamless user experience. My expertise in Flutter development, with a focus on state management, REST API integration, Firebase services, and UI optimization, aligns perfectly with your requirements. Having successfully delivered similar projects in the past, I am confident in my ability to meet and exceed your expectations. In implementing in-app subscriptions in Flutter, I would utilize popular libraries like Provider for state management and Firebase for backend validation. This approach ensures secure and efficient subscription handling within the app. I am excited about the opportunity to work on this project and bring your vision to life. Feel free to reach out to discuss further details and kickstart the development process.

@eclairios

Implement in-app subscriptions using Flutter's `in_app_purchase` package. For backend validation, the app sends purchase tokens/receipts to a secure server. This server verifies these with Google Play/Apple App Store APIs to confirm authenticity, manage subscription status, and grant access, preventing fraud. Hello, I understand you're seeking a solo Flutter developer to build a high-quality mobile application for both iOS and Android. Your project involves comprehensive features like user authentication, a clean UI, API integration, real-time data, and robust in-app purchases/subscriptions. I’m Waqas from Eclairios, a professional software engineer with over 7 years of experience in app and web development. I have successfully completed 128 projects, earning a 5.0 rating from satisfied clients. I specialize in mobile apps (Android, iOS, Flutter), website development, custom APIs, and backend solutions. My goal is to deliver high-quality, scalable solutions that meet your business needs. Why hire me? ★ 100+ Projects Completed with 5-star rating. ★ 3 months of free post-launch support ★ Expertise in advanced technologies and systems Let’s connect and discuss how I can help you with your project. Best regards, Waqas

@corpmember29

Hello, I’ve carefully reviewed your project requirements and I believe I can successfully develop the high-quality mobile application you're looking for. I have over 11+ years of experience in software development and deep expertise in Flutter, Dart, and mobile app architecture, I specialize in building fast, scalable, and responsive apps that provide an excellent user experience. Approach: For this project, I would implement in-app subscriptions using the flutter_inapp_purchase library, which integrates smoothly with both Google Play and the App Store. On the backend, I would validate the purchase receipts via Firebase functions (for Firebase integrations) or a custom backend API that checks with the App Store/Play Store servers to confirm the validity of the subscription. This ensures secure and reliable subscription management. I’m proficient in state management using Provider and Riverpod, which I’ll leverage for efficient data handling across the app, along with solid knowledge of REST API integration using Dio. In terms of performance, I ensure smooth UI rendering and fast load times, with optimization strategies like lazy loading and caching where necessary. Push notifications will be implemented using Firebase Cloud Messaging (FCM) for both Android and iOS. I am available to begin immediately and committed to delivering the project within the proposed 2-4 week timeline. Looking forward to working with you and creating an amazing app! Thanks

@diektech

Hi, This is Elias from Miami. For in-app subscriptions in Flutter, I would typically use in_app_purchase for the client side, connect it with App Store / Google Play subscription products, and validate receipts/tokens on the backend using Apple and Google server APIs before updating user access securely. I usually keep subscription status, renewal dates, webhook events, and entitlement checks on the backend so access does not depend only on the app. I checked your project description and understand you need a production-ready Flutter app for iOS and Android with auth, API integration, real-time data, subscriptions, notifications, and a clean responsive UI. The goal is to ship something fast, scalable, and smooth across devices without cutting corners on performance or app-store readiness. I’ve worked on Flutter apps with API integrations, Firebase-based features, state management, subscriptions, and deployment workflows, so I understand the moving parts needed to get a stable release out. Q1 – Will the backend already exist for auth, subscription validation, and APIs, or should I build that layer as part of the project? Q2 – Which subscription model do you want in phase 1: monthly, yearly, trial, or multiple plans? Q3 – Do you already have final UI designs/screens ready, or should I also handle the app’s UI/UX structure during development? Looking forward to hearing from you.

@joomextensions

In-App Subscriptions: I use RevenueCat (purchases_flutter) — it abstracts both App Store & Play Store billing, handles server-side receipt validation automatically, and fires webhooks to your backend (Laravel/Node) to sync subscription status in Firestore. The client never holds the source of truth; all entitlements are verified server-side. I'm a solo Flutter developer with 5+ years delivering production-ready apps on both stores. Bloc/Riverpod, Firebase Auth, Firestore, Dio, push notifications, and subscriptions are my daily stack — not add-ons I learn per project. For your app: clean architecture, modular code, full Git history, APK/IPA builds, and a deployment guide — comfortably within your 2–4 week window. Quick question: what's the core purpose of the app? That helps me give you a precise fixed-price quote rather than a range. Let's connect! ?

@AhteshamAK

Hello, and thank you for sharing this exciting opportunity. As an experienced solo Flutter developer, I’m confident in delivering a fast, scalable, and production-ready mobile app that meets your vision. I bring deep expertise in Dart, Flutter UI/UX, REST APIs, Firebase, subscriptions, notifications, and state management, ensuring a complete end‑to‑end development experience. I will build a clean, responsive interface, implement secure authentication, manage real‑time data flows, integrate in‑app purchases and subscription logic, and optimize performance for a smooth experience across Android and iOS. My workflow includes careful testing, Git‑based versioning, and full deployment support. Best regards, Ahtesham

@sunainawbst

Flutter Mobile App | Subscriptions | Scalable Architecture Hello, I have read your Job description carefully & give you 100% assistance as a Full Stack Developer., I've implemented in-app subscriptions in Flutter using in_app_purchase (official plugin) for iOS (StoreKit) and Android (Google Play Billing). On the backend (Node.js/Firebase), I validate receipts using Apple/Google APIs, store subscription status in DB, and use webhooks (App Store Server Notifications / Google RTDN) to keep subscription states updated (renewals, cancellations, expirations). This is a strong, well-scoped mobile app—and I’ve worked on similar Flutter apps with auth, APIs, and real-time features. How I’d approach it: Flutter App (iOS + Android): • Clean, responsive UI across devices • State management using Riverpod / Bloc (based on complexity) • Smooth navigation and optimized performance Core Features: • Authentication (email + social login via Firebase Auth) • REST API integration (Dio/HTTP with structured services) • Real-time updates (Firestore/WebSockets if needed) • Push notifications (Firebase Cloud Messaging) Subscriptions & Payments: • In-app purchases via official Flutter plugin • Backend validation + subscription state sync • Secure handling of receipts and renewals I focus on building fast, scalable, and clean mobile apps that are easy to maintain and extend. Happy to start immediately. Best, Kajal

@softsolution2000

I am an experienced Flutter developer with strong Dart knowledge and expertise in mobile app development, Android, debugging, and PhoneGap. Implementing in-app subscriptions in Flutter involves using tools like In-App Purchase plugin and backend validation through server-side verification. I am confident in delivering a high-quality app within your timeline and budget. Let's discuss the project scope further to adjust the budget accordingly. Please review my profile for my extensive experience and commitment to client satisfaction. Looking forward to the opportunity to work together.

@OutsourceMan

Having virtually broken the ceiling of digital app development, I offer you my strategic expertise in crafting bespoke Flutter applications that align with your key project requirements. You deserve an experienced individual who knows the ins and outs of Dart, Flutter's widgets, layouts, navigation, and state management, which I firmly embody. With mastery in the cross-platform design of responsive UIs for multiple screen displays, you can trust me with your users' satisfaction. Let's tackle your critical components! My substantial background in API integration using HTTP & Dio and Firebase (Auth, Firestore, Notifications) will ensure hassle-free REST API integration and push notifications in your Flutter app. Moreover, my proficiency extends to Git version control, testing (both manual & automatized), performance optimization, and debugging. Seeing your project as more than just another job but a valuable addition to my portfolio, I assure you undivided attention until the successful culmination of this project. The high-quality work and guaranteed on-time & on-budget delivery I promise only mirrors the best part of my legacy to lend a hand to over 743 satisfied clients over 18 years. Let CnELIndia enhance your mobile application endeavor!

@mrresearcher99

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert

@kamran2012

Hi, For in-app subscriptions, I will use the RevenueCat SDK (purchases_flutter) to handle both App Store and Play Store subscription flows from a single codebase. On the backend, I will verify receipts server-side using RevenueCat webhooks posting to a Firebase Cloud Function, so subscription status is always validated independently of the client and cannot be spoofed. I will build the full app with Firebase Auth for email and social login, REST API integration via Dio, push notifications through FCM, and a responsive UI across both platforms using Riverpod for state management. Questions: 1) Do you have the REST APIs ready, or will those need to be built as part of this project? 2) Which subscription tiers are you planning (monthly, annual, or both)? 3) Do you have Apple and Google developer accounts set up already? Looking forward to potentially working together. Thanks, Kamran

@Hammadhassan21

Hi there To answer your required question first. For in app subscriptions in Flutter I use the purchases flutter SDK by RevenueCat which handles both Google Play and App Store billing cleanly from a single codebase. On the backend I validate receipts through RevenueCat webhooks connected to Firebase so subscription status is always verified server side and never trusted from the client alone. This prevents bypass attempts and keeps everything audit ready. I reviewed your full project and I understand what you are actually building here. The real complexity is not the UI or the API calls. It is making sure authentication subscription state and real time data all stay in sync without race conditions or silent failures that only show up in production I work solo using Bloc for state management Dio for API handling and Firebase for auth Firestore and notifications. I have delivered production apps on both stores with full documentation and clean handover I can deliver within 3 to 4 weeks at a fixed price we can agree on after a short scoping call One question before I estimate precisely. Is the backend API already built and documented or will that need to be developed alongside the Flutter app Message me and we can jump on a quick call today Best Regards Hammad Hasssan

@mobiappsoftware

Hello, I will develop your FLUTTER MOBILE APPLICATION for Android and IOS both platforms with Web admin panel. I am Tulsiram. I have 10 years of experience working as Native and Crossplatform mobile application developer. I am understood your requirements. I am glad if we are working together. If you interested then let's connect. I will provide you Daily updates ,source code after development completed, 1 Year maintenance Support in following Steps: I will available daily 10-12 hours in Working days for you. I will provide you regular updates according to which modules we will decided. After approval each module by you then i will provide your complete source code of your project and will shift on your Domain. Thanks

@ciss26

Hello, I hope you are doing well. I understand that you are looking to build a MOBILE APPLICATION and I would be happy to help. I have extensive experience in designing and developing Application and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.

@Herculesz

Hi I would implement in-app subscriptions in Flutter using the in_app_purchase package or RevenueCat for cross-platform subscription handling, with backend validation through Apple App Store Server API and Google Play Developer API to verify receipts, track renewals, and prevent spoofed access. Your app needs more than standard Flutter screens—the real technical challenge is keeping subscriptions, authentication, real-time data, notifications, and API-driven flows consistent across iOS and Android without performance issues. I have strong hands-on experience with Flutter, Dart, Riverpod/Bloc, Firebase Auth, Firestore, FCM, Dio/HTTP, and production-grade mobile architecture. I would build this with a clean modular structure so auth, payments, API services, notifications, and app state remain maintainable and scalable. For subscriptions, I would separate purchase logic from entitlement validation so premium access is always controlled securely from the backend. Real-time data handling will be optimized with proper state management, caching, and efficient widget rebuild control to keep the UI fast across devices. I can deliver a responsive, production-ready Flutter app with full source code, clean documentation, and deployment-ready builds for both stores. Thanks, Hercules

@rbtech1984

Hi There!!! ★★★★ implementing secure in-app subscriptions using Flutter with RevenueCat or in-app_purchase plugin ★★★★ I understand you need a full-featured Flutter app for iOS & Android with authentication, responsive UI, API integration, real-time data, subscriptions, in-app purchases, and notifications. The goal is a fast, scalable, production-ready app. Services mentioned here based on project details ⚜ Flutter mobile app development for iOS & Android ⚜ Email and social login authentication ⚜ REST API integration and real-time data handling ⚜ Responsive UI design across multiple devices ⚜ In-app purchases and subscription system ⚜ Push notifications implementation ⚜ State management, performance optimization, testing, and bug fixing I’m an experienced solo Flutter developer, skilled in Dart, Firebase, Riverpod/Bloc, and deploying apps to App Store & Play Store. I plan to use `in_app_purchase` or RevenueCat for subscriptions with backend receipt validation for security, integrate Firebase for notifications, and ensure smooth, responsive UI. Looking forward to discussing your project and delivering a polished, production-ready app! Warm Regards, Farhin B.

@zainalitariq245

Answer: I will use in_app_purchase for the purchase flow (fetching products, updates, and restore). on the backend, I will validate receipts with Apple and Google apis then store and sync subscription status using server notifications or webhooks for renewals and cancellations. Hi, I have carefully read your project details and understand you want to build a high quality production ready application with user authentication responsive UI robust api integration realtime data handling in-app purchases and subscriptions and push notifications. I am a top rated and highly experienced Flutter mobile app developer with a proven track record of successfully creating various high quality applications. I can build your high quality Flutter app delivering a fast and production ready solution for both iOS and Android with clean responsive UI secure authentication API integration real time data handling in app purchases subscriptions and push notifications I will use efficient state management like Riverpod or Bloc ensure smooth performance thorough testing and bug fixing and handle full deployment to Play Store and App Store while providing complete source code builds and clear documentation for setup and future scaling. Please Take a Look at My Professional Portfolio: https://www.freelancer.pk/u/zainalitariq245 Let's connect to discuss your project in more detail. Best Regards, Zain

@MohammedSabih

Hi, your vision for a high-performance, subscription-based Flutter app requires the precise state management and clean architecture that I’ve spent the last 8+ years perfecting at Talvon Technologies. As a dedicated solo developer, I focus on building scalable Dart code that ensures a fluid experience across all iOS and Android devices. Our deliverables for this sprint include: ⭐ Full Flutter source code with Riverpod/Bloc architecture ⭐ Secure Firebase Auth and REST API integration ⭐ RevenueCat-backed subscription and IAP system ⭐ Deployment-ready APK/IPA builds for both stores I’m confident we can hit your 4-week timeline with a production-ready build—let’s discuss your API requirements and get started!

@Rajoriadares

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer