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My current Flutter app already runs smoothly with a free membership tier. I now want to introduce a paid premium membership that users can purchase through native in-app purchases on both iOS and Android. Scope of the upgrade • Integrate Google Play Billing and Apple In-App Purchases into the existing codebase, wiring everything through one clean, reusable service class. • Create purchase flow UI—upgrade button, confirmation screens, and graceful failure handling—aligned with my present design language. • Persist purchase status locally and remotely (I already store user data; you can tap into the same backend endpoint) so that membership survives reinstalls, logouts, and multiple devices. • Unlock premium privileges the moment the transaction is acknowledged: – Ability to upload additional pictures on listings – Option to mark ads as “Featured” – Preferred placement for those ads in search and browse results • Gate the above features for free users while keeping all existing free functionality intact. • Add a simple “Manage Subscription” page that lets members restore purchases or downgrade. Acceptance criteria 1. A test account can complete a sandbox purchase on both platforms and immediately see more-picture upload limits, featured ad toggle, and preferred placement take effect. 2. Cancelling or expiring the subscription reverts the account to free limits within 24 hours. 3. No regression bugs appear in the current free workflow. The project is self-contained: I provide the full repo, existing backend endpoints, and the premium icons/assets. Bring your Flutter, Dart, and native store billing know-how, and let’s make this upgrade seamless for my users.
ID do Projeto: 40152053
68 propostas
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Ativo há 1 mês
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With over a decade of experience in mobile app development, especially with Java, Kotlin, React Native, and Flutter. I am the ideal choice for your Flutter In-App Premium Upgrade project. I have been exceptionally successful at delivering clean, responsive and scalable codes that not only meet user's needs but also align with business goals, and I promise to bring these skills to your project. My multifaceted programming experiences combined with my comprehensive understanding of backend processes and the mentioned technologies will enable me to create for you a seamless customer upgrade experience on both iOS and Android platforms through native in-app purchases. I assure you perfect integration of Google Play Billing and Apple In-App Purchases into your existing codebase, as well as building standardized purchase flow UI that is in harmony with your current app's design language. I'm no stranger to persisting purchase status data locally and remotely given my experience handling user data in the past. This makes me well-equipped to ensure a smooth transition for memberships—across instals, logouts, and multiple devices ensuring uninterrupted premium service for your valuable customers.
$30 USD em 2 dias
7,0
7,0
68 freelancers estão ofertando em média $54 USD for esse trabalho

Hi, I understand that you're seeking a seamless integration of in-app purchases into your existing Flutter app, enhancing a free membership with a premium tier without disrupting current functionality. Leveraging my experience in Flutter, Dart, and backend integration, I will implement both Google Play Billing and Apple In-App Purchases via a unified service class. The purchase flow UI will be crafted to mirror your current design language, ensuring smooth user experience including failure handling. I will enable local and remote persistence of purchase status to support reinstalls, logouts, and multi-device use. All premium features will unlock instantly upon purchase, and the subscription management functionality will allow users to restore or downgrade effortlessly. 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. How is your current backend structured for syncing user data, and would you prefer real-time sync for subscription status? Thanks, Asad
$85 USD em 5 dias
8,2
8,2

Hi there, I'm excited about the opportunity to enhance your Flutter app by introducing a premium membership tier. With extensive experience in integrating Google Play Billing and Apple In-App Purchases, I can create a seamless and reusable service class that fits within your existing codebase. I’ll design an intuitive purchase flow UI, ensuring it aligns with your current design language, and implement robust features such as local and remote purchase status persistence. This way, users will enjoy uninterrupted premium privileges, even across reinstalls and devices. My goal is to provide a smooth upgrade experience while maintaining the integrity of your existing app workflows. I propose a timeline of 10 days to deliver these features. If this aligns with your vision, let’s discuss your specific needs further.
$100 USD em 4 dias
6,6
6,6

With over 10 years of experience as a freelancer mobile app developer, I believe that I have the expertise and skills necessary to successfully complete this project. My experience with both Android and iOS systems will be crucial in integrating Google Play Billing and Apple In-App Purchases into your existing codebase, ensuring a smooth in-app premium upgrade for your Flutter app. Additionally, my fluency in Dart programming language will come in handy as it is widely used in the Flutter framework. In terms of persisting purchase status locally and remotely, your description indicates that you already have a backend endpoint where user data is stored. Being proficient in PHP alongside mobile app development, I can effortlessly tap into this endpoint to ensure that the users' membership not only survives reinstalls and logouts but also persists across multiple devices. My aim has always been client satisfaction hence I consider a detailed understanding of client's requirements as an essential part of my work ethic. Your project's description provides a thorough portrayal of what you want to achieve and I am confident that our team's dedication will exceed your expectations. Let's collaborate to make this seamless upgrade for your users and deliver not just exemplary work but a strong sense of partnership. Thank you for considering us!
$150 USD em 3 dias
6,3
6,3

Hello, client I'm Denis Redzepovic, an experienced developer skilled in PHP, iPhone, Mobile App Development, Backend Development, Android, Dart, Flutter and Mobile Development. 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
$30 USD em 1 dia
6,0
6,0

Hello, I can integrate a robust, production-ready premium membership into your existing Flutter app using native Google Play Billing and Apple In-App Purchases without disrupting the current free experience. I’ve handled similar subscription upgrades where purchase logic, entitlement checks, and UI flows were added cleanly to a live codebase while keeping everything reusable and maintainable. Let's chat and discuss things in detail.
$100 USD em 5 dias
5,7
5,7

Hi there, I can seamlessly add native in-app purchases to your existing Flutter app without disrupting the current free experience. I’ve implemented Google Play Billing and Apple IAP before using clean, reusable service layers, with purchase states synced locally and via backend so access persists across devices. I’ll wire premium feature gating, instant unlocks, subscription restore/downgrade, and ensure sandbox testing works smoothly on both platforms with zero regressions. Looking forward for your positive response in the chatbox. Best Regards, Hassan H
$20 USD em 7 dias
4,9
4,9

Hi, I hope you’re doing well. I’d be happy to help you introduce a paid premium membership into your existing Flutter app. I have hands-on experience implementing Google Play Billing and Apple In-App Purchases in Flutter apps, with clean service-based architectures that work reliably across both platforms. I can integrate native in-app purchases into your current codebase using a reusable billing/service layer, design the upgrade and confirmation flows to match your existing UI, and handle all edge cases such as failures, restores, and acknowledgements. I’ll also ensure purchase status is persisted both locally and via your existing backend so subscriptions survive reinstalls, logouts, and multi-device usage. On the feature side, I’ll correctly gate premium functionality while keeping all free features untouched: Increased picture upload limits “Featured” ads toggle Preferred ad placement logic I’ll also add a simple Manage Subscription screen with restore and downgrade support, and verify that subscription cancellations or expirations revert users back to free limits within the expected timeframe. I focus heavily on regression safety, sandbox testing on both platforms, and clean state handling so the upgrade feels seamless to users. I’m ready to review your repo and get started right away. Best regards, Maisam Raza Flutter & Mobile Payments Developer
$20 USD em 7 dias
5,2
5,2

Hello! In-app subscriptions usually go wrong when “local premium” drifts from the store receipt state, so I’ll wire a single billing service that always reconciles with Apple/Google and your backend—no ghost-premium, no stuck-free. How I’d deliver your upgrade: • Billing integration: Flutter in_app_purchase (or RevenueCat if you prefer) with one reusable service class for iOS + Android. • Purchase UX: upgrade button → confirm → success/fail states, aligned to your current UI, with clear error messages and retry. • Persistence: store entitlement locally + sync to your backend endpoint; restore purchases supported; survives reinstall/logouts/multi-device. • Feature gating: enforce limits cleanly (extra photo uploads, “Featured” toggle, preferred placement) while keeping the free tier untouched. • Manage Subscription: restore + link to native manage/cancel page; downgrade handled by entitlement changes. • Expiry handling: periodic refresh + server-side check so cancellation/expiration reflects within 24h. Acceptance-ready testing: • Sandbox purchases on both platforms, restore tests, and cancellation/expiration tests with no regressions. If you share your product IDs (iOS/Android) and backend entitlement endpoint details, I can start immediately. Warm regards, Yulius Mayoru
$10 USD em 1 dia
4,6
4,6

Your app works well, but monetization is blocked without a reliable premium subscription flow ✅. The challenge is adding iOS and Android in-app purchases without disrupting free users or existing logic ✨. We’ll implement a clean, native subscription system that restores across devices and unlocks features instantly ⚡. Free functionality stays untouched, while premium value is clearly delivered ⭐. With over 25+ years of experience in software development and testing, we’ve recently delivered Flutter subscription upgrades using Apple IAP and Google Play Billing with backend synced entitlement control. Solution & Deliverables Unified Flutter billing service (iOS + Android) Premium upgrade UI & Manage Subscription screen Persistent subscription status (restore, expiry handling) Feature gating for uploads, featured ads, and placement Result: seamless purchases, instant premium access, automatic downgrade on expiry no regressions.
$30 USD em 1 dia
4,8
4,8

Hello, I can integrate native In-App Purchases for iOS and Android into your existing Flutter app, add the upgrade/manage subscription UI, sync purchase status with your backend, and unlock/gate premium features instantly and safely. I have solid experience with Play Billing + Apple IAP, sandbox testing, restore purchases, and avoiding regressions in free flows. Ready to start immediately.
$25 USD em 5 dias
4,5
4,5

Hey , I just went through the project description, and I see you are looking for someone experienced in Mobile App Development, Mobile Development, Dart, Backend Development, Flutter, Android, iPhone and PHP. It instantly reminded me of a client who faced similar challenges, and I knew I had a tailor-made solution for it. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: • Is there anything else you’d like to add to the project details? • What’s the top hurdle you’re facing with this project? • What is the timeline to get this done? Why Choose Me? 250+ Projects. 5 Years. Zero Misses. My reputation is built on a single metric: Flawless Execution. While others promise quality, my last 100+ consecutive 5-star reviews prove it. I don’t just finish the job; I set the standard. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) The portfolio here is just the tip of the iceberg. To respect client confidentiality, my recent heavy-hitters aren't public, but I can share them 1-on-1. Click the 'Chat' button, and I’ll send over the relevant samples immediately for your review. Regards, Abdul Haseeb Siddiqui.
$10 USD em 6 dias
4,5
4,5

Hello, [NOTE] : I’m ready to demonstrate my experience through a test project. I’m a Flutter developer with solid experience integrating Google Play Billing and Apple In App Purchases into existing production apps, designing clean purchase flows, and persisting subscription state both locally and via backend APIs to survive reinstalls and multi device use. I’ve handled feature gating and entitlement unlocking in Flutter using reusable service layers, ensuring premium features activate immediately on acknowledgment and revert correctly on expiry without breaking free user flows. This upgrade fits my background well because it’s a focused monetization task that requires careful native store handling, backend coordination, and zero regression risk. One question I have is do you already have server side receipt validation in place for both stores, or should the app handle verification directly before updating the backend? Best regards Mickey
$200 USD em 7 dias
4,2
4,2

Hi,there.. I can integrate premium subscriptions into your Flutter app using Google Play Billing and Apple In-App Purchases, connecting them to your existing backend and ensuring purchase status persists across devices. I’ll create a smooth upgrade flow, unlock premium features immediately, and maintain all free functionality. I am available to dedicate my full attention to your project. Let’s discuss more details on chat. Thanks!!!
$20 USD em 1 dia
3,7
3,7

⭐⭐⭐ FLUTTER IN-APP PURCHASES (iOS + ANDROID) ⭐⭐⭐ Hello! I specialize in adding production-ready monetization to existing Flutter apps using native Apple In-App Purchases and Google Play Billing—without breaking current free flows. I’ll integrate both stores through a single clean, reusable Dart service, handling purchase, restore, validation, and failure states. Premium status will persist locally and via your existing backend so subscriptions survive reinstalls, logouts, and multiple devices. I’ll wire the full upgrade UX (upgrade CTA, confirmations, error handling) to match your current design, then gate/unlock features immediately after acknowledgment: • extra image uploads • featured ads • preferred placement I’ll also add a “Manage Subscription” screen for restore/downgrade and ensure expirations correctly revert users within the required window. Deliverables: • iOS + Android IAP fully integrated • Clean, documented Flutter/Dart code • Sandbox-tested purchases on both platforms • Zero regressions to free tier Ready to start immediately.
$20 USD em 7 dias
3,9
3,9

With my extensive experience in Flutter and mobile app development, particularly with iOS and Android, I am confident in my ability to seamlessly integrate the Google Play Billing and Apple In-App Purchases into your existing codebase. I understand the importance of maintaining your present design language, and I assure you that the purchase flow UI, from the upgrade button to confirmation screens, will align perfectly. In addition to handling the purchase process intricacies, I am well-versed in comprehensive data persistence systems, which means I can ensure membership continuity even during reinstalls, logouts, or across multiple devices using your backend endpoint. The additional features unlocked by premium membership will be strictly gated for free users while keeping all existing functionality intact. Moreover, what sets me apart is my capability to go beyond just mobile development. My AI-powered automation skills provide an added advantage to create end-to-end solutions that not only function beautifully but also intelligently behind the scenes. With me onboard, you get a holistic solution for your project needs. So hit me up and let's make this Flutter In-App Premium Upgrade an effortless reality!
$20 USD em 7 dias
3,8
3,8

Hi, this is Noman, I’ve carefully reviewed your project and can seamlessly integrate Google Play Billing and Apple In-App Purchases into your existing Flutter app. I will build a clean, reusable service class, create the upgrade flow UI consistent with your design, and ensure premium features unlock immediately while keeping all free functionality intact. Purchase status will persist across devices, and I will implement a “Manage Subscription” page for restoring or downgrading memberships. I’ll ensure sandbox testing works perfectly and that subscription changes reflect correctly without affecting current workflows. With my Flutter, Dart, and native billing experience, I can deliver a smooth, bug-free premium upgrade for your users. Best regards, Noman
$20 USD em 7 dias
3,9
3,9

Hi, I can add a clean, reliable premium membership system to your existing Flutter app using native in-app purchases on both Android and iOS, without breaking your current free flow. I have 11.5+ years of mobile development experience and have integrated Google Play Billing and Apple In-App Purchases in Flutter apps with proper purchase validation, restore flows, and backend sync. How I’ll approach it: Integrate Play Billing + App Store IAP using a single reusable service layer Implement upgrade flow UI (upgrade CTA, success/failure states) matching your current design Persist subscription state locally and via your existing backend so it survives: App reinstalls Logouts Multiple devices Unlock premium features immediately after purchase acknowledgement: Extra image uploads Featured ads Preferred listing placement Gate premium-only features cleanly for free users Add a “Manage Subscription” screen: Restore purchases Downgrade / cancellation handling Acceptance coverage: Sandbox purchases work on both platforms Premium limits apply instantly after purchase Expiry or cancellation reverts to free tier within 24 hours No regressions in existing free functionality I’m comfortable working inside an existing repo and coordinating with backend APIs. Ready to start immediately and make this upgrade seamless for your users. Aman
$200 USD em 7 dias
3,6
3,6

Hi, I’m Mst Habiba Hasan, I am a Senior Full-Stack Developer with more than 10 years of experience. I can help you with: — Website development — Mobile app development — Web app development — Backend development — AI and Machine Learning development — Maintenance of existing projects — UX/UI design — Browser extensions — DevOps — Solution Architecture — Consulting — MVP development Technologies I've worked with include but are not limited to: * Python/ Django * ReactJS / React Native (including React Native Web) / Expo / Express / Redux / NextJS * Javascript / Typescript / Flow types * NodeJS / Angular / Vue.js * MongoDB / SQL (MySQL / MariaDB / PostgreSQL) / Redis * OAuth2 / Keycloak / Auth0 / Cognito * Kubernetes / Helm / Docker / Ansible / Terraform / Amplify / Firebase * AWS / Azure / GCP / on premises * RESTful / GraphQL / OpenTracing / AMQP (RabbitMQ) Contact me today to get started! I’m excited to collaborate and bring your vision to life. Best regards, Mst Habiba Hasan
$20 USD em 1 dia
4,2
4,2

Hey there, Is premium a subscription only (monthly or yearly), or do you also want a lifetime one-time purchase option? For the “preferred placement”, should the app just unlock a flag and your backend controls ranking, or do you expect the app to apply client-side sorting too? I’ve integrated App Store and Google Play subscriptions in Flutter where the key is doing it the “store-correct” way: a clean billing service, server-side validation, and reliable entitlement syncing so users stay premium across devices and reinstalls. I’ll add a reusable purchase service (Flutter + native billing via a stable package), wire the upgrade UI into your current design, and persist entitlements both locally and through your existing backend endpoint. Premium privileges will unlock immediately after the transaction is acknowledged, and restore purchases plus a simple manage page will be included. For cancellations and expiry, I’ll set it up so your backend updates entitlement from store events, and the app refreshes status on launch and periodically so free limits return within 24 hours without breaking the existing free flow. Hope to discuss more on chat. Best, Kirill
$500 USD em 7 dias
3,2
3,2

Hi Chris, I understand that you are looking to integrate Google Play Billing and Apple In-App Purchases into your existing Flutter app to introduce a paid premium membership tier. I am confident in my ability to seamlessly execute this upgrade to enhance user experience and monetization opportunities for your app. My technical strategy involves integrating the billing systems, creating a user-friendly purchase flow UI, persisting purchase status, unlocking premium features upon transaction acknowledgment, and implementing a "Manage Subscription" page for user convenience. I will ensure that all premium privileges are properly gated for free users while maintaining existing functionality. Upon completion, you can expect: - Seamless integration of Google Play Billing and Apple In-App Purchases - User-friendly purchase flow UI aligned with your design language - Proper persistence of purchase status and premium features - A "Manage Subscription" page for easy account management I'll send over my portfolio via direct message. Feel free to reach out there. My background in Flutter, Dart, and native store billing ensures reliable results, professional standards, and seamless execution. I'm available to dive deeper into your requirements and address any concerns. Best regards, Taneem
$20 USD em 7 dias
3,0
3,0

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