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I’m building a mobile application that enables seamless peer-to-peer transfers over India’s UPI network. The project covers end-to-end development for both iOS and Android, including secure integration with NPCI-approved UPI APIs and bank SDKs. Security is non-negotiable: users must be able to authenticate with a 4–6 digit PIN as well as optional biometric checks (fingerprint on Android, Face ID/Touch ID on iOS). All sensitive data should stay encrypted on device and never be logged, in line with RBI and PCI-DSS best practices. A clean, minimal UI that mirrors the familiarity of existing UPI apps (GPay, PhonePe, etc.) is important, but I’m open to the framework you prefer—whether that’s Flutter, React Native, Kotlin + Swift, or another proven stack—so long as it meets App Store and Play Store performance guidelines. Deliverables • Universal codebase compiled and tested for latest iOS & Android releases • UPI collect/send flow: register VPA, generate/scan QR, send request, and confirm payment • Dual-layer authentication: PIN entry screen and biometric fallback/override • Basic transaction history with filters and search • Build, signing, and store-submission documentation so I can reproduce future releases I’ll provide access to the requisite bank sandbox, any NPCI paperwork, and branding assets. Please factor in a short UAT window for bug fixes, then help me push to production.
Project ID: 40660739
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18 freelancers are bidding on average ₹4,908 INR for this job

Hi there, I understand you're building a UPI P2P mobile app for seamless peer-to-peer transfers across India's UPI network. This is an exciting project that requires secure integration with NPCI-approved APIs and bank SDKs. I have extensive experience developing secure financial mobile applications with UPI integration. My approach would focus on: 1. Building robust native iOS and Android applications with Flutter framework for cross-platform compatibility 2. Implementing secure UPI API integration with proper authentication and transaction handling 3. Integrating with approved bank SDKs for seamless payment processing 4. Creating intuitive user interface for smooth peer-to-peer transfers 5. Ensuring full compliance with NPCI security standards and banking regulations My team has successfully delivered multiple fintech applications with similar requirements, focusing on security, performance, and user experience. I'm confident in delivering a reliable, scalable solution that meets all your technical specifications. Best Regards, Khorshed Alam, RS Software
₹60,000 INR in 10 days
6.7
6.7

The seamless integration with NPCI-approved UPI APIs and bank SDKs is crucial for your mobile application, and I understand the importance of adhering to RBI and PCI-DSS best practices for security. I will implement a robust dual-layer authentication system that includes a PIN entry screen alongside biometric checks, ensuring that user data is encrypted and secure throughout the process. I have extensive experience in developing cross-platform applications, and I can utilize Flutter or React Native to create a clean, minimal UI that aligns with the familiar design of existing UPI apps like GPay and PhonePe. This will ensure a smooth user experience while meeting App Store and Play Store performance guidelines. I will handle the universal codebase for both iOS and Android, implement the UPI collect/send flow, and provide a basic transaction history feature with filters and search capabilities. Additionally, I will prepare all necessary build, signing, and store-submission documentation for future releases. I'm ready to get started on this right away and ensure a successful launch of your UPI P2P mobile app. Rajavel Cross-Platform Mobile Developer | UPI Integration | Secure App Development
₹999 INR in 10 days
5.2
5.2

As an expert with over 8 years in software development and a keen ability to turn ideas into powerful digital products, I am the ideal choice for your UPI P2P Mobile App project. I have an extensive track record of delivering 200+ successful projects on time and within budget, testimony to my commitment to client satisfaction. My comprehensive skill set includes specific expertise in Flutter and mobile app development, aligning perfectly with your needs. Beyond technical capabilities, I pride myself on fast but meticulous work that nonetheless maintains quality and doesn't fall short on documentation. After successful completion of this project to your satisfaction, I assure you of thorough handover followed by long-term support. To summarize, my unyielding dedication to producing forward-thinking solutions incorporates cutting-edge technology such as Flutter while ensuring safe and easy-to-use experiences- precisely what your users expect from a UPI app. So let’s not wait! Let's turn your vision into a reality!
₹8,999 INR in 7 days
4.8
4.8

Hi, I have already worked with NPCI apis. The important part of this project is not just building a UPI-looking interface—it’s getting the NPCI/bank integration, device security, authentication, and payment state handling correct. I’d treat those as the foundation before polishing the UI. I’d recommend React Native + TypeScript for the mobile application, with native modules where the bank/NPCI SDK requires platform-specific integration. I can handle: * UPI VPA registration and account linking * Collect/send payment flows * QR generation and scanning * Transaction status and reconciliation * 4–6 digit secure app PIN * Face ID/Touch ID and Android biometric authentication * Secure encrypted local storage * Sensitive-data protection and zero sensitive logging * Transaction history, filtering and search * Bank/NPCI sandbox integration * iOS/Android build signing and release configuration * UAT, device testing and store submission support For payment flows, I’d implement idempotency, timeout/retry handling, pending/failed/success states and server-side verification so the app never incorrectly reports a transaction result.. Since you’re providing the bank sandbox and NPCI documentation, I’d start with an integration/architecture review, then build the payment flow before expanding into the remaining screens. I can work milestone-by-milestone through sandbox → UAT → production
₹1,050 INR in 7 days
3.2
3.2

Hello! I’m Karthik, a mobile app developer with over 15 years of experience in delivering robust applications. I’m excited about your UPI P2P app project and confident in my ability to meet your requirements. I specialize in secure, user-friendly mobile applications, and I propose using Flutter for a universal codebase, ensuring optimal performance on both iOS and Android. My focus will be on creating a clean UI that resonates with users familiar with existing UPI apps while adhering to RBI and PCI-DSS standards for security. Key Deliverables: - Seamless integration with NPCI-approved UPI APIs. - Dual-layer authentication with PIN and biometric options. - Comprehensive UPI transaction flows: register VPA, QR functionalities, and payment confirmations. - Transaction history with search and filter capabilities. - Thorough documentation for builds and future releases. Collaboration will ensure timely delivery, and I’ll accommodate a UAT phase for any adjustments. Let’s bring your vision to life! I look forward to the opportunity to work together. Best, Karthik
₹1,050 INR in 7 days
3.1
3.1

As a skilled and experienced mobile app developer, I believe I am the ideal fit for your UPI P2P Mobile App project. My expertise lies in creating top-notch applications with Flutter, which not only ensures excellent performance but also brings the advantages of cross-platform compatibility. This means your app will be suitable for iOS and Android users alike without any issues. My deep understanding of Android and iOS development makes me adept at integrating complex banking APIs like NPCI-approved UPI along with bank SDKs while following the stringent security guidelines laid down by the RBI and PCI-DSS. Your users can rest assured that their sensitive data will stay encrypted on their devices, meeting all the best practices. In addition to technical prowess, my commitment to quality and collaboration will guarantee a job well done. I want more than just a transactional relationship; I'm eager to build with you something great that reflects both our professional skills and values. Let's create an app that elevates the UPI experience and successfu
₹1,050 INR in 7 days
3.0
3.0

⚠️ IF YOU'RE NOT HAPPY YOU DON'T PAY ⚠️ I think we're a strong fit for your project. I specialize in Mobile App Development, iPhone, Android, PhoneGap. For this brief (I’m building a mobile application that enables seamless peer-to-peer transfers over India’s UPI netw) I would isolate the bottleneck, confirm acceptance criteria, and ship a clean, measurable fix you can verify in staging before it hits production. I'd keep the architecture simple, secure, responsive, and easy for you to manage after handover. Multiple 4.0-rated reviews on Freelancer (16 total), payment verified. I can start against a 7-day delivery window. I'd love to chat about your project! The worst that can happen is you walk away with a free consultation. Regards, N0VATECH
₹1,133 INR in 7 days
3.9
3.9

Hi, I build UPI payment apps — collect/send, VPA registration, QR flows — integrated with NPCI APIs and bank SDKs, shipped to production (not just sandbox). I work in both React Native and native Kotlin/Swift, whichever fits your needs best. Security is core to how I build: PIN + biometric auth, on-device encryption, no sensitive data logged — RBI/PCI-DSS aligned. Can deliver the full flow you've listed — send/collect, QR, transaction history, plus store-submission docs for future releases. Let's discuss scope and timeline.
₹1,050 INR in 7 days
0.0
0.0

I've shipped production fintech apps on both iOS and Android, including secure payment flows and biometric auth. For your UPI P2P app, I'll use Flutter to deliver a single codebase that compiles reliably for App Store and Play Store, implement the PIN plus biometric dual-layer auth with encrypted local storage, build out your VPA registration, QR scan, and payment confirm flows, and include a transaction history with filtering. I'll handle all NPCI API integration against your sandbox, follow RBI and PCI-DSS encryption standards strictly, and provide clear build and signing docs so you own the release process. Ready to jump into UAT immediately after core delivery.
₹606 INR in 3 days
0.0
0.0

As an accomplished full-stack developer with over half a decade of experience, I specialize in creating highly functional and efficient mobile applications, very similar to the one you require. My extensive knowledge of mobile frameworks like Flutter, React Native and Kotlin + Swift gives me the ability to deliver your UPI P2P Mobile App with thorough attention to security, UI detail and API integration. One of my key values is robust security architecture, which aligns perfectly with your project agenda. My experience in building secure RESTful API-driven systems integrated with third-party platforms will prove extremely crucial for implementing NPCI-approved UPI APIs and bank SDKs for your app. Crucial sensitive data will be efficiently encrypted and never logged, aligning strictly with RBI and PCI-DSS guidelines. One should not underestimate the significance of a pleasant user experience for finance apps like yours. Adhering meticulously to detailed UI/UX specifications enables me to build clean, minimalistic, yet striking User Interfaces that majorly mirrors popular existing UPI apps like GPay and PhonePe. So let's team up! With me taking care of this backend tech-heavy part seamlessly, committing my skills in Android, iOS development along with Flutter and React Native; you can focus more on your business endeavors while being rest assured about the successful fruition of this project.
₹1,050 INR in 7 days
0.0
0.0

Hi, I’m a React Native developer with 2.5+ years of professional experience building cross-platform mobile applications with secure authentication, API integrations, Firebase, and production releases. I can develop the UPI application for both iOS and Android with a clean, familiar payment experience while keeping security as a core priority. The implementation can cover VPA registration, UPI send/collect flows, QR generation/scanning, transaction confirmation, transaction history, and search/filtering. For authentication, I can implement a secure 4–6 digit PIN flow along with Face ID/Touch ID on iOS and biometric authentication on Android. Sensitive information will be handled securely on-device and excluded from logs, following the security requirements and guidelines applicable to the provided UPI/bank integration. I can work with your bank sandbox and NPCI-approved APIs/SDKs, handle the UAT phase, resolve issues, and provide properly documented builds, signing, and store-release procedures. I’d be happy to review the available APIs/SDKs and start with the core UPI payment flow.
₹1,050 INR in 3 days
0.0
0.0

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Royal IT service
₹1,050 INR in 7 days
0.0
0.0

I can develop the complete iOS + Android UPI application using Flutter, with native integration wherever the required bank/NPCI SDKs need it. How I’ll approach the project 1. Payment Flow VPA registration UPI send & collect QR scan and generation Payment confirmation Transaction status handling 2. Security Secure 4–6 digit PIN flow Face ID / Touch ID Android biometric authentication Encrypted local storage Secure API communication Sensitive data excluded from logs Proper session and authentication handling 3. User Experience Clean and familiar UPI-style interface Simple payment journey Transaction history Search and filters Clear success, pending and failed states Responsive layouts for different devices 4. Release Latest iOS & Android builds Bank/NPCI sandbox integration Device testing UAT support Production signing App Store & Play Store submission support Release documentation I’ll also keep the codebase clean, modular, and maintainable, so future payment features and additional integrations can be added without major changes. I’m ready to review your bank SDK/API documentation first and prepare the technical flow before development starts. Regards, Ritesh N
₹600 INR in 7 days
0.0
0.0

Full-stack mobile dev with 4+ years in production apps and real fintech experience — including M-Pesa/Daraja payment integrations — so secure P2P transfer flows and bank/NPCI-grade compliance aren't new territory for me; I'd build this cross-platform for a unified, App Store/Play-ready codebase, layering PIN + biometric (Face ID/Touch ID/fingerprint) auth with on-device encryption and zero sensitive-data logging to satisfy RBI/PCI-DSS expectations, then nail the full collect/send flow — VPA registration, QR generate/scan, request, confirm — plus searchable transaction history, all wrapped in a UI as familiar and frictionless as GPay or PhonePe; I'll work through your sandbox and UAT window methodically and hand you clean build/signing docs so future releases are yours to reproduce.
₹4,000 INR in 7 days
0.0
0.0

I’m building a mobile application that enables seamless peer-to-peer transfers over India’s UPI network. The project covers end-to-end development for both iOS and Android, including secure integration with NPCI-approved UPI APIs and bank SDKs. Security is non-negotiable: users must be able to authenticate with a 4–6 digit PIN as well as optional biometric checks (fingerprint on Android, Face ID/Touch ID on iOS). All sensitive data should stay encrypted on device and never be logged, in line with RBI and PCI-DSS best practices. A clean, minimal UI that mirrors the familiarity of existing UPI apps (GPay, PhonePe, etc.) is important, but I’m open to the framework you prefer—whether that’s Flutter, React Native, Kotlin + Swift, or another proven stack—so long as it meets App Store and Play Store performance guidelines. Deliverables • Universal codebase compiled and tested for latest iOS & Android releases • UPI collect/send flow: register VPA, generate/scan QR, send request, and confirm payment • Dual-layer authentication: PIN entry screen and biometric fallback/override • Basic transaction history with filters and search • Build, signing, and store-submission documentation so I can reproduce future releases I’ll provide access to the requisite bank sandbox, any NPCI paperwork, and branding assets. Please factor in a short UAT window for bug fixes, then help me push to production.
₹1,500 INR in 50 days
0.0
0.0

donkamokam, India
Member since Dec 10, 2018
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