Flutter App Deployment & Payments

@corpmember29

Hello!! Flutter App Deployment & Payment Integration – I have carefully reviewed your requirements, and **I HAVE DEPLOYED AND MAINTAINED SIMILAR FLUTTER APPLICATIONS WITH SUBSCRIPTION AND PAYMENT WORKFLOWS BEFORE THAT I CAN SHOW YOU.** I have **10+ years of experience** in Flutter, Firebase, Codemagic, Apple App Store, Google Play Console, Cloud Functions, Razorpay, Apple In-App Purchases, subscription management, and CI/CD automation. I can successfully deploy your existing apps to TestFlight and the Play Console, resolve signing and provisioning issues, stabilize the complete subscription lifecycle, debug payment webhooks, server-side receipt validation, entitlement synchronization, and ensure reliable renewals, cancellations, and re-enablement across both platforms. I will also update your documentation, validate the complete release process, and provide a comprehensive end-to-end testing procedure to ensure a smooth production deployment. I am available to work in your preferred time zone and will remain committed to your project until you are completely satisfied with the final result. I eagerly await your positive response. Thanks, Christina

@C0RETECHIES

Hi there, I understand the goal is to first stabilize your release process and then resolve critical payment lifecycle issues. Operationally, you have a Codemagic pipeline that needs to produce signed, production-ready builds for App Store and Play Store submission. Concurrently, your backend subscription logic, handled by Firebase Cloud Functions, is failing to correctly process renewal and state-change webhooks from Razorpay and Apple, leading to incorrect entitlement states like past_due. Technical approach: We'll begin by auditing the Codemagic workflows, verifying signing configurations (provisioning profiles, keystores) for release builds. For payments, we'll trace the server-to-server notification lifecycle, inspecting webhook payloads and Firebase function logs to pinpoint failures in receipt validation or the database transaction that grants entitlements. Core modules: We will address two main systems. 1) Release Pipeline: Ensuring consistent, signed IPA/AAB generation and successful uploads. 2) Subscription Lifecycle: Stabilizing the backend logic that handles initial purchase, renewal, cancellation, and grace period events from both payment providers to manage user access correctly. Relevant systems: We've implemented similar Flutter apps with complex backend and payment integrations. Our work on Bison360 (a Flutter-based ERP with Stripe/Square payments) and StepOut Live (a social app with in-app purchases) involved solving similar state management and backend integration challenges. Implementation strategy: We'll work in two parallel streams. First, we will immediately focus on generating and submitting the builds to get the store review process started. Simultaneously, we'll replicate the payment bugs in a dev environment, build the test matrix you require, and use it to validate our fixes to the Cloud Functions before deploying to production. Regards, Rohit

@InterconnectBPO

I can help streamline your Flutter app deployment to ensure clean, reproducible builds in both TestFlight and the Play Console. My approach will focus on efficient processes that meet all store regulations while utilizing your existing assets. I understand the importance of a stable subscription flow and the need to resolve issues like entitlements and unexpected past_due flips. I will ensure the payment processes are reliable and that a comprehensive test matrix validates the entire flow. With expertise in Xcode provisioning, Android keystores, and payment webhook debugging, I bring the technical skills necessary for this task. We have 20+ 5-star reviews on similar projects! I look forward to discussing the timeline for store approvals and stabilizing your payment flow. Regards, InterconnectBPO

@Herculesz

Hi, this project is really two production problems: reproducible mobile releases through Codemagic and a subscription state machine that is drifting between billing, validation, and entitlement updates. The real engineering risk is not the store submission itself; it’s inconsistent state propagation across renewals, webhook handling, and Firebase Cloud Functions once production events arrive out of order. I’ve built and stabilized live systems like this where the first step is to verify the release path is deterministic, then trace the payment lifecycle from external event to final entitlement write. With Codemagic already in place, I’d treat the pipeline, signing assets, and store metadata as controlled inputs and focus on where production behavior diverges from the expected contract. The closest matches in my past work are Custom Feature Development & Integration and AI-Driven Marketing Suite Development -- 2, both of which involved entering an existing codebase, auditing behavior, tightening test coverage, and documenting the handoff clearly. I usually structure this as release validation, event-flow tracing, and entitlement reconciliation as separate layers so the failure domain is obvious. For the payment side, I’d verify renewal handling, duplicate-event safety, receipt validation outcomes, and the exact transition rules behind past_due and re-enable paths. These are the kinds of systems I design for long-term production use, not one-off fixes. Thanks, Hercules

@asifalimzd

Hi there, I can help take your Flutter apps through production release and resolve the subscription issues across iOS and Android. I have experience with Flutter releases, Codemagic CI/CD, App Store/TestFlight, Play Console, Firebase Cloud Functions, Apple IAP, Razorpay integrations, receipt validation, and entitlement workflows. I will ensure clean builds, store approvals, stable subscription renewals, and proper documentation updates following your runbook. Do you already have test accounts and sandbox billing environments available for Apple IAP and Razorpay verification? Kindly send me a message to discuss more. Thanks.

@vivekrl43

Dear client, I can publish your flutter based app, I can do this quickly, I have more than 9 years of exp in apps and web development.

@CodeAnchors

Hello, I am a seasoned Flutter developer with extensive experience in Android and iOS app deployment, payment gateway integration, and mobile app testing. I have successfully deployed numerous Flutter apps to production, ensuring clean and reproducible builds while adhering to App Store and Play Console guidelines. For your project, I will focus on seamlessly deploying your existing apps to TestFlight and the Play Console, ensuring approval in both stores. I will also work on stabilizing the subscription flow on both platforms, addressing issues such as entitlement grants, subscription stability, and billing validation. With access to necessary platforms like Apple Developer, Play Console, Firebase, Razorpay, and GitHub, I will utilize my expertise in Xcode provisioning, Android keystores, and payment webhook debugging to deliver the required outcomes. Rest assured, I will provide detailed documentation and automated test procedures to validate the success of the deployment and payment flow. I am confident in my ability to meet your requirements effectively and efficiently. You can view my portfolio here: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ Could you please share your preferred timeline for store approval and payment-flow stabilization? Let's discuss further in detail. Best regards, Muhammad Anas Khan

@melikatfz

Hi there, Facing issues with clean, reproducible builds and ensuring a stable subscription flow can be daunting, especially when navigating App Store and Play Console regulations. But don't worry—my expertise in Flutter and app release engineering will streamline this process, ensuring smooth approvals and a robust payment system. Here are my questions to better assist you: 1) Could you specify any previous rejection reasons in the App Store or Play Console? 2) What is your preferred timeline for achieving stable subscription flows? Let's discuss your project now!

@irfanui

Hi, I reviewed your project: Flutter App Deployment & Payments. I can help you build a professional mobile application with clean UI, secure API integration, authentication, push notifications, payments, backend/admin support, testing, and release guidance. I have experience with Android, iOS, Flutter/React Native workflows, Laravel/Node.js backends, APIs, and production deployment. Please message me to discuss app screens, features, platform requirements, and timeline. Portfolio: https://www.freelancer.com/u/irfanui Regards, Mohammad 4th Dimension Partners

@heenafullstacken

Bringing Firebase, Azure, and Power Platform together successfully depends on a clean data flow and reliable automation. For Flutter App Deployment & Payments, I can connect the required services, map and synchronize records, build secure functions or workflows, and include validation, monitoring, retries, and useful error logs from the beginning. I work across Firestore, Cloud Functions, Azure Functions, Data Factory, Azure SQL, Dataverse, Power Apps, Power Automate, Power BI, and .NET integrations. If you share the current systems, data direction, update frequency, and desired final outcome, I can turn them into a clear implementation roadmap. See my work: https://www.freelancer.in/u/heenafullstacken Warm regards, Heena A Plus IT House

@TechizeBuilder

Dear Client, I read "Flutter App Deployment & Payments" carefully and understand you want a single Flutter codebase that runs smoothly on both Android and iOS. My hands-on experience with Android, Mobile App Testing, iOS Development, Payment Gateway Integration, Flutter aligns directly with what you need. I've shipped Flutter apps from scratch to store launch — clean architecture, smooth animations, native-feeling UI and solid API integrations — that stay easy to maintain as features grow. A few quick questions to get us started: 1. Do you need Android, iOS, or both from day one? 2. Are UI designs ready, or should I design the screens as well? 3. Is there an existing backend/API, or should I build that too? Thanks & Regards, Deepak

@mobiwebsolutions

✋ Hi There!!! ✋ The Goal of the project:- Deploy your Flutter apps successfully to the App Store and Play Store while stabilizing subscription payments and entitlement management. I carefully read your complete project description and understand you need production-ready Flutter releases, store approvals, payment flow fixes, Firebase validation, and updated release documentation. I am the right fit because I have 9+ years experience as a full stack developer delivering Flutter apps with secure payment integrations. * Deploy signed Flutter builds through Codemagic to TestFlight and Play Console. * Fix subscription renewals, entitlement propagation, and payment workflows. * UI review, database management, testing, full source code delivery, updated documentation, deployment, and release support. I have completed similar Flutter deployment and payment integration projects. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!

@point2solutions

<<<< Flutter Release & Subscription Stabilization >>>> I can take your Flutter apps through production release and ensure a stable subscription flow across iOS and Android. Approach: → Build, sign, and publish Flutter apps to TestFlight and the Play Console. → Debug and stabilize subscriptions, renewals, entitlements, and payment workflows. → Validate Firebase, Cloud Functions, webhooks, and store compliance. → Deliver production ready releases, updated documentation, testing, and deployment support. Flow: Release Review → Build & Store Submission → Payment Testing → Validation → Final Handover Let's connect Thanks.

@nutankumarftp

As an experienced and proficient full stack developer, I am more than capable of helping you take your two existing Flutter apps to the next level and ensuring their successful deployment in both the App Store and Play Console. My vast expertise includes not only profound knowledge in modern web technologies, mobile frameworks like Flutter, but also in different CMS platforms, API integrations, and Payment Gateway systems — Razorpay as well. Rest assured that with my assistance, your subscription flow will not only be fully stable on both platforms, but thoroughly tested for billing accuracy, server receipt validationm and consistent functionality through our Firebase Cloud Functions. Over the course of my career, I have successfully delivered a number of complex projects exactly aligned to client specifications with minimal back-and-forth. I'm thorough and detail oriented so I make certain to adapt to all regulatory compliances set forth by the App Store and Play Console guidelines. I have substantial experience with Xcode provisioning, Android keystores, signed AAB uploads alongside Cloud Functions logs and payment webhook debugging so coordinating between your credentials at Apple Developer, Play Console, Firebase (dev & prod), Razorpay, Codemagic, and GitHub is all a part of my repertoire.

@malikabdulbasit3

As an experienced Flutter developer with a focus on delivering scalable, high-performance apps, I'm confident I have the skills and knowledge necessary to bring your project to fruition. I understand the integral balance between development and deployment, so I can navigate the unique complexities of getting your apps into production for both TestFlight and the Play Console. One of my core strengths is my proficiency in evaluating and addressing potential issues ahead of time. This means that even though your app's signing files, store listings, and Codemagic workflows already exist – I'll carefully review them to guarantee they're aligned with App Store and Play Console regulations to prevent any hiccups during the approval process. Additionally, having built various types of applications including e-commerce, online stores, booking systems and real-time apps - I am adept at working with payment gateways. Therefore, you can trust me to fix your subscription flow flawlessly by ensuring that renewals grant entitlements without glitches, preventing any unexpected past_due flips and making sure cancellations/re-enabling path works perfectly. I am more than just a developer; I aim at deplo-ing results that drive positive outcomes for your business!

@techsty2014

Interesting project, We will get both apps through TestFlight and Play Console approval, then fix the subscription flow so renewals, entitlements, and cancel/re-enable all work reliably. For the billing issues, we will trace each webhook path through your Firebase Cloud Functions logs to find where entitlement propagation breaks. Receipt validation and past_due flips usually stem from missed or misordered webhook events. A couple of quick things to confirm: 1) Are the Razorpay webhooks currently hitting your prod or dev Cloud Functions endpoint? 2) Do both apps share one Firebase project, or are they separate? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Ready to start whenever you are. Faizan

@Yupppp

I can deploy your application on both AppStore connect and PlayConsole. I hope you have DUNS number to skip the closed testing if not Then you will have 12 testers for 14 days testighn. I am readuy to start right now.

@AndrewJSMAN

I've deployed and stabilized Flutter apps to TestFlight and Play Console before, so this aligns with my recent workload. I'll first validate the existing Codemagic pipelines for reproducibility, then push signed builds through both stores while keeping store metadata intact. The Razorpay and Apple IAP issues will be addressed by auditing receipt validation logic, fixing entitlement propagation in Firebase Cloud Functions, and stabilizing the cancel/re-enable flow through webhook testing. Entitlement flips to past_due and unreliable renewals will be resolved by aligning Razorpay webhook handling with Apple's sandbox receipts and Firebase function retries. Test matrix will cover billing verification, receipt validation, and entitlement propagation across both platforms. Thanks, Andrii.

@mayankinnovative

Hello I can help you deploy your Flutter app and set up a complete, compliant payment system for both Android and iOS. Deployment and payments are critical stages where many apps face issues, so I will ensure everything is properly configured and approved by the app stores. My approach: • Prepare production build (Android & iOS) • Configure app signing, certificates, and bundle IDs • Upload app to Google Play Console and App Store Connect • Complete store listing requirements (icons, screenshots, policies) • Set up payment system based on your use case: – In-app purchases (subscriptions, premium features) – Stripe integration (if external payments are allowed) • Implement purchase verification and testing • Fix any store rejection issues if needed I will ensure your app is not only deployed successfully but also follows store policies, especially for payments. Quick questions: 1. What type of payments do you need (subscription, one-time, service)? 2. Do you already have developer accounts (Play Store / App Store)? 3. Is your app ready for production or still needs final fixes? I can handle the full process from build to live release smoothly. Ready to start immediately. Thanks