Fintech App Payment Integration

@joomextensions

As a seasoned expert in the fintech domain, I understand the criticality of your project. My team at Harmis Technology has, over the past decade, built strong expertise in cross-platform mobile app development with a special focus on Flutter. We have successfully developed numerous apps that are running smoothly on both iOS and Android platforms from day one. Our proficiency goes beyond just building apps. We understand the significance of secure and reliable payment integration, especially in the fintech space. Our skills coupled with our experience of working with robust payment gateways will ensure that your users can process transactions seamlessly, add cards securely, and access real-time confirmations within the app. Furthermore, we strive to future-proof our deliverables to accommodate the evolving needs of your app. With your project providing additional potential phases involving investment tracking and budgeting, our adeptness at structuring projects for easy expansion will be an asset. Lastly, our dedication to quality ensures that you not only get clean code and effective test suites but also comprehensive setup instructions and a video walkthrough post-development; easing your journey as you scale your fintech application.

@kamran2012

I can help with this, I will deliver the payment module — card tokenization, one-off and recurring charges, and real-time confirmation UI — as a cross-platform Flutter app ready for TestFlight and Google Play internal testing. For PCI compliance, I will handle all card data through the gateway's client-side SDK so raw card numbers never touch your server or app code. Token storage will use platform-secure keystores (Keychain on iOS, EncryptedSharedPreferences on Android), and I will structure the payment module as an isolated feature layer so future investment tracking and budgeting phases plug in without refactoring core logic. Questions: 1) Which payment gateway are you using — Stripe, Adyen, or another provider? Send me a message and we can go over the details. Best regards, Kamran

@Srashtasoft

Hi there, I have read your project requirement. You need a cross-platform fintech mobile application (iOS + Android) with a strong focus on secure, PCI-compliant payment processing, including card addition, tokenisation, one-time and recurring transactions, and real-time confirmations. The solution should ensure high performance, secure data handling, clean architecture, and readiness for future expansion (investment tracking, budgeting), along with complete documentation and test coverage. We can build a secure, scalable, and high-performance fintech app with proper encryption, token management, and reliable payment gateway integration, ensuring compliance with App Store and Google Play standards. A few questions: ============== Which payment gateway are you planning to use (Stripe, Razorpay, Adyen, etc.)? Do you require full PCI DSS compliance handling on our side or via a hosted/tokenized solution? Should recurring payments follow subscription billing models or custom schedules? Do you need additional security layers like biometric authentication or device binding? Best Regards, Srashtasoft Team

@OutsourceMan

With a keen understanding of your fintech app's needs, I know I am the right fit for this project. Having spectated the growth of various app development frameworks, I can readily suggest the best cross-platform stack to suit your specific requirements. My mastery of Flutter and React Native carries my promise of optimized performance without ever compromising on security measures, such as PCI-compliance. At CnELIndia, we value building with a future-oriented perspective. This means that structuring your project for seamless expansion is already part of my plan -possibly easing the subsequent addition of features like investment tracking and budgeting, which pique your interest. I also assure you that our final builds will smoothly comply with Apple App Store and Google Play submission requirements. Finally, my commitment to delivering exceptional work is underscored by my 18 years in the industry and a portfolio filled with satisfied clients. Let me take care of the wireframes, brand assets, API integrations, payment-gateway tokens alongside giving you clear setup instructions and a Loom video walkthrough – all ensuring clean, well-documented code plus test suites. What’s more? My team and I do not just stop at finishing the project on time; we are happy to offer ongoing maintenance if needed after completion. Reach out to us now and let's build your vision together!

@pinkeegupta

Hi I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)

@Rajoriadares

Hello Client, Greeting of the day!!!! I read your job description. I have STRONGEST 10 years experience in Mobile development and have been DEVELOPED 150+ Apps, three dating app, Two Customer and service provider app 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

@Arunmohan001

Hi, I can build your fintech app using Flutter + Stripe (or your preferred gateway) with full PCI-compliant flows. I’ll implement secure card tokenization, one-off and recurring payments, and real-time confirmations. Sensitive data will be handled via SDK tokenization (no raw card storage) and secure storage (Keychain/Keystore). Clean architecture with test coverage (unit + integration) ensured. CI/CD-ready builds for TestFlight and Play Internal Testing. Scalable structure for future modules like investments/budgeting. Ready to start.

@kishanbwts

Building a smooth, secure payment flow that meets PCI rules and works on both iOS and Android is essential. I’ve done similar work before, integrating tokenized card payments and recurring billing inside React Native apps, which helped a fintech startup launch their MVP without app store delays. To keep performance tight and build ready for Apple and Google submissions, I’d lean toward Flutter. It offers near-native speed, great cross-platform stability, and excellent plugin support for secure token storage. If you prefer Swift/Kotlin split, I can adapt too. Quick question: Does your payment gateway support native SDKs or only REST APIs? This affects how I’ll manage tokenization and ensure PCI compliance. Also, will the billing cycles for recurring payments be flexible or fixed? I’ll deliver tested code with clear docs, a Loom walkthrough, and smooth Testflight and internal Android build deliveries. Ready to start wiring your UI to a rock-solid payment backend.

@Riasatali78

With over 7 years of professional experience in Android app development, I have honed my skills to ensure not only the successful completion of your fintech mobile application but its smooth performance across all Android versions. My expertise lies in clean architecture, optimized performance, and modern Android libraries such as MVVM Architecture and Jetpack Libraries (Room, LiveData) that align with your project's needs. Moreover, flexibility is a strong suit of mine. Though I lean towards Kotlin and Java development for Android apps, as you're open to suggestions regarding the cross-platform stack, I believe Flutter can bring the best of both iOS and Android worlds to your app. This would enable efficient integration of the PCI-compliant payment processing system that allows secure card tokenization, one-off or recurring transactions, and real-time confirmations as per your requirements. Additionally, my post-launch support goes beyond just supplying well-documented code; I provide clear setup instructions and even a video walkthrough if necessary to ensure your smooth sailing with the project. Considering possible future expansions like investment tracking and budgeting in your app, I commit to structuring the project for easy scalability. If you're looking for a dedicated professional who incorporates efficiency and a long-term maintenance focus into their work, look no further. Let me bring your fintech application vision into reality seamlessly!

@webnsoftindia

***** Cross-Platform Fintech App with Secure Payment Integration ***** Develop a high-performance fintech mobile application for iOS and Android with a strong focus on secure, PCI-compliant payment processing. Implement card tokenisation, one-time and recurring payments, and real-time transaction confirmations within a scalable architecture. Use a robust cross-platform stack (Flutter or React Native) with clean code, strong security practices, and full test coverage. Deliver production-ready builds with documentation, test suites, and a structured foundation for future financial features. Key Features: Cross-platform app development (iOS & Android) PCI-compliant payment integration & tokenisation One-time & recurring transaction support Secure storage of payment data (token-based) Real-time transaction status & confirmations Thanks

@CreativeIshan

Coming from a rich background in mobile app and web development, I have the technical expertise and creativity that will be crucial to your Fintech App Payment Integration project. In my 10+ years of experience, I've mastered platforms like Flutter, iOS, React Native that makes me highly adaptable for different project types. Equipped with this wide range of skills, I am confident in delivering high-performance, secure code that is complaint to the strict standards set by Apple App Store and Google Play. My drive for perfection combined with my in-depth knowledge of mobile app development enables me to find innovative solutions to complex problems. For your app's payment processing, I understand the need for a PCI-compliant system that handles card tokenization and charge flow seamlessly. Rest assured, my approach will prioritize user experience and real-time confirmation of transactions. As we work together, I vow to not only bring your vision to life but also future-proof the project for scalability. Considering your vision for expansion into investment tracking and budgeting phases, I will ensure our current foundation can support easy incorporation of future features. From my previous testimonies, you will see that I commit to every project even past the delivery phase, providing ongoing support and revisions. Let's transform your app into something amazing that revolutionizes fintech!

@ashinnd84

Hello there, we are a team of Full Stack Developers. Please, send me the project complete details to start the work. Thanks Ashish Kumar.

@MuhammadAsad108

✔ I deliver 100% work — 99.9% is not for me. ✔ Workflow Diagram Architecture Planning ⟶⟶ Secure Payment Gateway Integration ⟶⟶ Card Tokenization Setup ⟶⟶ Transaction Flow (One-time & Recurring) ⟶⟶ Secure Storage Implementation ⟶⟶ Real-time Confirmation System ⟶⟶ Testing & Compliance Checks ⟶⟶ Deployment (TestFlight & Android Build) Key Highlights ✔ Cross-platform fintech app — built with Flutter or React Native for high performance on iOS & Android. ✔ PCI-compliant payments — secure card tokenization, no sensitive data stored locally, full compliance practices. ✔ One-time & recurring billing — flexible transaction flows with reliable backend handling. ✔ Real-time updates — instant transaction confirmation and status tracking inside the app. ✔ Secure storage — encrypted token handling using Keychain/Keystore best practices. ✔ Clean architecture — scalable structure ready for future features like investments & budgeting. ✔ Fully tested delivery — unit + integration tests with 100% pass rate for payment module. Best Regards, Asad Fintech App Developer | Payment Integration Specialist | Secure Mobile Architect

@TeamGTW

Hello! Based on your project description, you are looking to integrate a secure, PCI compliant payment system into a cross platform fintech mobile application for iOS and Android, supporting card management, one time and recurring transactions, and real time confirmations. I will focus on building a robust payment module using a scalable architecture with Flutter or React Native and a secure backend integration. The system will include card tokenization via a PCI compliant gateway, encrypted data handling, secure session management, and smooth transaction flows with real time status updates. I will ensure clean code structure with unit and integration tests covering the full payment lifecycle, along with proper documentation and a walkthrough for your team. The architecture will be designed to support future expansion such as investments and budgeting features. I specialize in fintech and secure payment integrations with 7 plus years of experience and have done similar work in past please open chat window I can share with you. I focus on compliance, reliability, and scalable system design. Please contact us to discuss gateway selection, transaction flows, and compliance requirements so we can define the best implementation plan. Best regards, Nikita Gupta

@Vinay7758

As a seasoned mobile app developer, I have extensive experience in both Flutter and other native platforms like Swift and Kotlin. My goal is to create smooth, high-performing, and secure apps that meet all the strict guidelines of Apple App Store and Google Play. Your fintech app's payment integration requires reliability, scalability, and security— attributes that lie at the core of my professional skill set. What sets me apart from the rest of the pack is my approach to development. I aim for not just writing code but also building robust solutions that are easy to maintain, efficient to run, and ready to scale. With your app's potential growth in mind, I'll structure the project for easy expansion while also paying close attention to PCI-compliance and secure token storage. To demonstrate my commitment to quality delivery, besides clean code and test suites, I'll also provide clear setup instructions as well as a Loom video walkthrough of the codebase. Together, we can create an app that not only meets the current requirement but also sets you up for any future phases such as investment tracking and budgeting.

@arshig8

Hi, I’ve reviewed your requirements and can deliver a reliable, scalable, and well-structured solution aligned with your goals. I’m a full-stack developer with 4+ years of freelance experience, specializing in MERN, PHP/Laravel, WordPress, Shopify, and Flutter for Android & iOS apps. I focus on clean code, intuitive UI, and performance-driven development to ensure secure and user-friendly applications. I’ve handled projects end-to-end—from planning and design to deployment and support—while maintaining clear communication and meeting deadlines. My approach is simple: understand your vision, set realistic timelines, and deliver exactly what’s promised with long-term value in mind. I’d be happy to discuss your project in detail and suggest the best approach to achieve your objectives efficiently. Looking forward to working with you. Best regards, Arshiya

@Mayanks010

As a seasoned developer at Royal IT Service, specializing in mobile app development and cross-platform tools like Flutter and React Native, I feel confident in my ability to tackle your fintech app project. With my knowledge and experience, I can ensure we hit all your key milestones, from strong PCI-compliant payment integration to smooth-running iOS and Android performance. My main focus throughout the project will be maintaining utmost security by securely storing tokens and abiding by all Google Play and Apple App Store submission requirements. I've successfully built similar apps for clients in the past that have showcased complex functionalities without jeopardizing performance or security. Moreover, my commitment to long-term partnership aligns perfectly with your plan of future expansion such as investment tracking and budgeting. By structuring the project for seamless growth, we can address these additional features efficiently when the time comes. In conclusion, choosing me for this project ensures you're getting advanced digital solutions with measurable business growth at the hands of a trusted and reliable tech partner. Let's turn your idea into an app that exceeds user expectations!

@shadabkhan92

As an experienced and versatile full-stack developer, I consider myself an ideal fit for your fintech app project. My proficiency in React Native, Flutter, Swift, and Kotlin ensures that your application will run smoothly not just on iOS or Android but across both platforms. I thoroughly understand the importance of airtight payment processing for a fintech app and can assure you of my strict adherence to PCI compliance standards throughout the payment module development. Not only will I help you deliver rock-solid payment processing with tokenization and charge flow functionalities but also make certain that we clear 100% passing rate of unit & integration tests for optimal performance. I'll complete the package by providing clear setup instructions along with a Loom video walkthrough of the codebase. The ability to build durable infrastructure for advanced AI systems, like my work experience with Odoo ERP and custom IoT hardware design, enhances my capability to structure projects for easy expansion - something intrinsic to your long-term vision of adding investment tracking and budgeting features to your app. Together with my team, we cover the full spectrum in web and mobile stack from frontend (React/Flutter) to backend (Node/Django) and even extended services like hardware networkensing. I'm confident our multi-faceted skills can offer you all you need and more for this project.

@KarthikTechCon

Hi, I’m Karthik with 15+ years of experience building fintech, payment, and cross-platform mobile applications. I can help you build a secure, PCI-compliant payment module for both iOS and Android with support for card tokenization, one-time payments, recurring billing, and real-time transaction confirmation. My preferred stack would be Flutter or React Native for a single codebase, backed by a secure API layer in Node.js or .NET. I have experience integrating payment gateways such as Stripe, PayPal, Razorpay, Adyen, and Braintree with proper token storage, webhook handling, idempotency, and strong security practices. The solution can include: * Add/save cards securely * One-time and recurring payments * Real-time payment status updates * Secure token handling and encrypted local storage * PCI-compliant architecture * Unit and integration test coverage * TestFlight and Android internal testing builds * Clear setup documentation and Loom walkthrough * Modular architecture for future features like investment tracking and budgeting I focus on clean code, app store-ready builds, performance optimization, and scalable architecture so future fintech modules can be added easily. Warm Regards, Karthik B Resonite Tech