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El proyecto consiste en crear una aplicación móvil que funcione de forma fluida tanto en iOS como en Android. Se trata de una pasarela de pagos.
Project ID: 40449967
117 proposals
Remote project
Active 6 days ago
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117 freelancers are bidding on average €527 EUR for this job

Hola comparte más detalles de la aplicación. Soy desarrollador de aplicaciones móviles y he trabajado en un par de pasarelas de pago en el pasado. charlemos
€500 EUR in 7 days
8.9
8.9

Hello, I hope you're having a great day. I have hands-on experience building cross-platform mobile apps that include payment flows, having delivered multiple projects for iOS and Android. For a recent project I integrated Stripe into a hybrid app built with React Native, handling tokenization on-device and server-side charge creation, and solved 3D Secure flow retries for declined cards. I'd usually start by confirming the target devices and whether you prefer a hybrid tool like PhoneGap/Capacitor or a native/cross-platform framework such as React Native or Flutter, then set up a payment sandbox (Stripe/PayPal) and a secure backend endpoint. I will create a simple checkout screen first and run end-to-end tests on Android and iOS simulators. Happy to walk through the integration details for the pasarela de pagos and confirm security requirements. I have some questions regarding the project: 1) Which payment provider do you want to use, Stripe, PayPal, a local gateway, or another? 2) Will card data be tokenized client-side and sent to your server, or do you need direct gateway SDKs on the app? 3) Are there specific compliance needs (PCI scope reduction, 3D Secure, recurring billing) or regional rules to consider? Thank you, Paramjot Singh
€675 EUR in 33 days
8.7
8.7

Hi - Elias here from Miami. The primary challenge in developing a cross-platform mobile application is ensuring consistent performance and user experience across iOS and Android. Differences in OS behavior, UI components, and device capabilities can lead to subtle bugs that degrade user satisfaction. Common pitfalls include improper handling of asynchronous processes and state management, which can cause data inconsistencies or crashes. Many projects also fail to adequately address scalability, particularly when integrating payment gateways or backend services, leading to bottlenecks under higher loads. I propose utilizing a hybrid framework like React Native or Flutter. This allows for shared codebases while leveraging native components for performance-critical tasks. The implementation flow would be: User Input → API Processing → UI Update, ensuring a smooth interaction experience. A critical decision early on will be the choice of architecture—whether to adopt a monolithic or microservices approach for the backend. This will influence scalability and maintainability significantly. What specific user interactions or features do you anticipate will be the most resource-intensive? Looking forward to discussing this further.
€600 EUR in 5 days
8.1
8.1

Hola, Saludos Espero que estés bien. Soy un desarrollador de aplicaciones móviles con más de 5 años de experiencia. Confío en mi capacidad y habilidades para desarrollar aplicaciones móviles de alta calidad y me gustaría trabajar en su proyecto. Completaré el trabajo según sus requisitos. Quiero discutir más este proyecto para preparar el concepto final. Así que analicemos esto en detalle en el chat y luego haremos planes para comenzar a trabajar en ello. Esperando su respuesta más temprana. Gracias. Shubham
€250 EUR in 14 days
8.0
8.0

HELLO, I will develop a smooth, fully functional mobile payment app for both iOS and Android. The app will provide a secure, intuitive payment flow, optimized for speed and reliability, and follow best practices for mobile security and compliance. I have experience building cross-platform apps with React Native or Flutter, including payment integrations with popular gateways, real-time transaction handling, and clean UI/UX. I’ll deliver a fully tested, production-ready app along with source code and deployment instructions for both platforms. By Christina
€250 EUR in 15 days
8.3
8.3

⭐⭐⭐⭐⭐ • Proposal to Valuable Client for iOS and Android Payment Gateway App • We specialize in developing seamless cross-platform mobile applications using PhoneGap for both iOS and Android platforms. • Our team will create a secure, user-friendly payment gateway app with smooth functionality, intuitive app design, and robust payment integration. • CnELIndia can help by: 1. Gathering detailed requirements and defining scope. 2. Designing UI/UX for optimal user experience. 3. Developing and integrating payment gateways securely. 4. Conducting thorough testing on iOS and Android devices. 5. Deploying the app to app stores and providing post-launch support. • With expertise in Mobile App Development, Payment Gateway Integration, and App Design, we ensure timely delivery and high-quality results. • Let's discuss next steps to start this project successfully.
€500 EUR in 7 days
7.1
7.1

Hi, What's the payment gateway you want to integrate in the app. I'm available for more discussion right now. Looking forward to hearing back from you soon. Thanks!
€500 EUR in 7 days
6.6
6.6

Hi, Para una pasarela de pagos que funcione fluida tanto en iOS como en Android, lo importante es decidir temprano si tú procesas las tarjetas o solo orquestas (Stripe Connect, Adyen, MercadoPago) — eso cambia totalmente el alcance de PCI y el tiempo de aprobación en las tiendas. Mi propuesta de stack: - Flutter (un solo código para iOS y Android, build nativo real) - Stripe SDK o MercadoPago Checkout API según tu mercado objetivo - Firebase Auth + Firestore para usuarios y registros de transacciones - Plaid o tokenización nativa si vas a guardar métodos de pago Trabajo como dev móvil top-rated en Flutter y React Native desde 2017, y he integrado flujos de pago con tokenización y 3D Secure varias veces — la parte que normalmente atrasa el proyecto es la revisión de Apple, no el código. Una pregunta concreta: ¿la app es para cobrar a clientes finales (tipo checkout) o para que comercios reciban pagos (tipo POS / split payments)? El gateway correcto depende de eso. Asif
€500 EUR in 7 days
6.4
6.4

Hola, Desarrollaré su APLICACIÓN MÓVIL para las plataformas Android e iOS, incluyendo un panel de administración web. Soy Tulsiram. Cuento con 10 años de experiencia trabajando como desarrollador de aplicaciones móviles, tanto nativas como multiplataforma. He comprendido sus requisitos y me encantaría que trabajáramos juntos. Si le interesa, pongámonos en contacto. Le proporcionaré actualizaciones diarias, el código fuente una vez finalizado el desarrollo y 1 año de soporte y mantenimiento, siguiendo los siguientes pasos: Estaré disponible para usted entre 10 y 12 horas diarias durante los días laborables. Le enviaré actualizaciones periódicas en función de los módulos que hayamos acordado. Una vez que usted apruebe cada módulo, le entregaré el código fuente completo de su proyecto y lo implementaré en su dominio. Gracias.
€250 EUR in 35 days
6.6
6.6

Hi 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. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
€500 EUR in 7 days
6.6
6.6

Hi, Tu proyecto de una aplicación móvil de pasarela de pagos para iOS y Android encaja muy bien con mi experiencia en desarrollo mobile e integración de pagos. Puedo ayudarte a crear una app fluida, segura y fácil de usar, enfocada en una experiencia estable tanto para usuarios de iPhone como de Android. Puedo desarrollar la aplicación con una tecnología cross-platform adecuada, configurar el flujo de pagos, integrar la pasarela requerida, validar estados de transacción, manejar errores, y asegurar una navegación clara desde el inicio del pago hasta la confirmación final. También puedo cuidar el diseño de la interfaz para que sea moderna, responsive y confiable. Mi enfoque será construir una base limpia y escalable, con pruebas en ambos sistemas operativos, documentación básica y soporte para publicación o entrega final según lo necesites. Me encantaría conocer más detalles sobre la pasarela que deseas usar y ayudarte a llevar esta app a producción de forma segura. Best, Justin
€500 EUR in 7 days
6.2
6.2

¡Hola! ★★★★ (Desarrollo de aplicaciones móviles multiplataforma para iOS y Android con pasarela de pagos) ★★★★ Comprensión del proyecto: Entiendo que necesita una aplicación móvil fluida, tanto para iOS como para Android, centrada en la funcionalidad de pasarela de pagos, garantizando transacciones seguras, rápidas y fiables, con una experiencia de usuario impecable. Servicios: ⚜ Desarrollo de aplicaciones móviles multiplataforma (Flutter/React Native) ⚜ Integración de pasarelas de pago (transacciones seguras) ⚜ Configuración de compatibilidad para iOS y Android ⚜ Diseño UI/UX de la aplicación para un flujo de usuario fluido ⚜ Integración de API de backend para pagos ⚜ Mejores prácticas en seguridad y cifrado ⚜ Soporte para pruebas, depuración y despliegue Cuento con una sólida experiencia en el desarrollo de aplicaciones móviles y sistemas de pago, creando aplicaciones seguras con una interfaz de usuario fluida y un flujo de transacciones estable, utilizando frameworks modernos. Enfoque de trabajo: análisis de requisitos → arquitectura de la aplicación → desarrollo de la interfaz de usuario (UI) → integración de pagos → conexión del backend → pruebas → despliegue en las tiendas de aplicaciones. Me aseguraré de que su aplicación funcione de manera fiable en ambas plataformas, con un procesamiento de pagos seguro y rápido. Saludos cordiales, Farhin B.
€256 EUR in 10 days
6.6
6.6

Entiendo que necesitas una app móvil cross-platform para una pasarela de pagos, compatible con iOS y Android en solo 7 días. - Usaré PhoneGap (Apache Cordova) para desarrollar una única base de código que se compile nativamente en ambas plataformas, optimizando el tiempo sin sacrificar rendimiento en los pagos. - Integraremos un SDK de pasarela como Stripe o MercadoPago (según prefieras) con tokenización de tarjetas y manejo de respuestas en tiempo real, cumpliendo con PCI-DSS básico mediante sus librerías oficiales. - El diseño será minimalista y funcional: flujo de 3 pantallas (login, formulario de pago, confirmación), con validaciones de campos y feedback visual claro. Usaré frameworks como Onsen UI o Ionic para componentes nativos. Entregaré la app lista para pruebas en 7 días, con el código fuente, documentación de despliegue y un APK/IPA de demo. La cifra cubre el alcance descrito; afinaremos el número en cuanto concretemos los detalles que aún faltan. Si hay dudas sobre el flujo de pagos o el diseño, podemos resolverlas en una llamada de 15 minutos.
€600 EUR in 7 days
6.4
6.4

Hello! As per your project post, you’re looking to build a cross platform mobile payment gateway application for both iOS and Android with a seamless, secure, and scalable transaction experience. The goal is to create a reliable fintech solution that enables smooth payment processing, secure user authentication, and high performance financial operations across mobile devices. My focus will be on delivering a secure payment gateway ecosystem featuring: cross platform iOS and Android app development, secure authentication and session management, payment processing workflows, wallet and transaction management, real time payment status updates, transaction history tracking, API integrations with banking/payment providers, encrypted financial data handling, admin monitoring dashboard, push notifications, fraud prevention measures. I specialize in building fintech, wallet, payment, and enterprise mobile platforms using Flutter, React Native, Node.js, Laravel, PostgreSQL, Firebase, and cloud infrastructures with expertise in payment gateway integrations, secure API architecture, encryption standards, realtime transaction systems, and scalable backend development. Let’s connect to review the payment workflows, target regions, compliance requirements, and preferred banking/payment integrations so we can finalize the technical architecture and implementation roadmap. Best regards, Nikita Gupta.
€400 EUR in 28 days
5.9
5.9

Let's get started right now. Do you have a quick time to discuss in more brief about your project on a call? I assure you that you will get a secure, scalable, and 100% bug-free Android/iOS app where you will get all kinds of features. I am always looking for a long-term relationship, and I could be the one-stop solution in terms of design, development & QA, so you don't have to search for a new employee for every new project. I can spend at least 40 hours/week on your project (the project will be completed on time). I have been in this sector for like 5+ years now and am pretty experienced in creating apps with using the, Swift, React Native, Laravel, PHP, and Node.js. I am equipped to develop apps using these languages in all industries. Well-versed in in-app purchases, Machine learning, AI solutions, Dark Mode, Siri, Memoji, Real-time tracking, Multilinguality, Live Streaming, Photo/Video Editing, Voice Search, Push Notifications, User Authentication, User Profile Creation, Location, Chat, Map/social media/Payment Integration. Apart from that, I possess great familiarity with UI design principles, patterns, and best practices, Android Architecture Patterns (MVP, MVVM, MVI), REST (Retrofit, OkHttp, WebSockets), and Strong knowledge of Android SDK, different versions of Android. I look forward to the great opportunity to work with you. Best Regards
€500 EUR in 7 days
5.8
5.8

Hello, With 4 years of experience in Mobile App Development, specializing in both iOS and Android platforms, I am confident in delivering a seamless payment gateway application. I have a strong background in App Design, Payment Gateway Integration, and Android App Development, making me well-equipped to meet your project requirements. I have carefully reviewed the project description and am keen on discussing further details to ensure a successful outcome. Let's connect in chat to explore how I can bring your vision to life. Best regards, Taimoor from Pixels Soft Let's discuss more in chat.
€500 EUR in 7 days
5.4
5.4

Having developed over 30 mobile applications over my career, with a strong emphasis on cross-platform compatibility for both iOS and Android, I am confident I can create the stable, high-performance gateway payment app you need. Flutter and React Native, the two frameworks in which I specialize, are optimized for creating apps that work seamlessly across both platforms. Additionally, I've integrated several complex UI/UX designs into previous applications of mine, resulting in a notable 100% increase in user engagement. This experience ensures I can develop a mobile app that not only performs its main function - processing payments - but also does so intuitively and pleasingly to your end-users. Finally, having successfully built scalable backend systems integrated across mobile and web platforms, deploying them to App Store and Google Play, your desired outcome of a fluid application will be well accomplished. In short, I have the matching skills, expertise, ample achievements, and most crucially experience to get this project done efficiently and to produce an outstanding application to serve you and your users effectively!
€500 EUR in 7 days
6.2
6.2

Hi, this project involves building a cross-platform payment gateway app, which requires careful attention to secure transaction processing and seamless user experience. The primary engineering risk lies in orchestrating secure payment flows and ensuring consistent behavior across iOS and Android environments. I usually structure systems by separating concerns between UI responsiveness and secure backend processing, which is critical in payment applications. While my recent projects focus on AI-driven backend systems and automation pipelines, I understand the importance of robust architecture and secure integrations in production environments. Systems designed for long-term production use must include thorough validation and monitoring layers to ensure reliability and compliance. I can help by outlining a secure integration pipeline and mapping out transaction flows to ensure smooth and safe payment processing. Thanks, Hercules
€500 EUR in 7 days
5.4
5.4

Hello, I am very interested in your project to create a cross-platform payment gateway app for iOS and Android. I have extensive experience developing secure, reliable mobile applications with real-time payment integration, including API setup, transaction handling, and backend architecture. I am confident I can deliver a fast, stable, and fully functional app while ensuring compliance with standard payment security protocols. I would like to schedule a discussion to review your project requirements, preferred tech stack, and security considerations. This will help me outline a clear development plan and timeline for a smooth delivery. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira
€500 EUR in 7 days
5.1
5.1

¡Hola! Me especializo en desarrollo de aplicaciones móviles y plataformas fintech con más de 9 años creando soluciones seguras para iOS y Android con enfoque en pagos y escalabilidad. Aquí es cómo puedo ayudarte: * Desarrollar app móvil fluida para iOS y Android desde una sola base * Implementar pasarela de pagos segura con validaciones y cifrado * Diseñar interfaz moderna, rápida y fácil de usar para usuarios * Construir arquitectura escalable preparada para futuras integraciones ¿Podrías aclarar si la pasarela procesará pagos propios o integrará proveedores externos como Stripe, PayPal o bancos locales, y si necesitas también panel administrativo?
€500 EUR in 7 days
4.9
4.9

Bilbao, Spain
Member since May 17, 2026
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