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We are building a social-driven e-commerce experience LIKE AMAZON . and now need the full mobile application delivered for both iOS and Android. The core account flow is phone-number registration with OTP verification; it must handle resend logic, basic fraud protection, and a smooth first-time user experience. Code may be written in Flutter, React Native, Kotlin/Swift, or another cross-platform stack you prefer—as long as both stores receive the same polished feature set and the final builds meet Apple App Store and Google Play requirements. Deliverables • Complete source code for iOS and Android builds • OTP-based authentication module fully integrated with a scalable back-end (Firebase Auth, Twilio Verify, or a comparable service) • Installation and configuration guide • A short hand-over session so my internal team can maintain future versions Acceptance criteria 1. Users can register, log in, and reset credentials via phone + OTP without errors. 2. The same feature set operates correctly on the latest two major versions of iOS and Android. 3. All screens pass basic accessibility checks and feel responsive on common device sizes. Once the above milestones pass review on TestFlight and internal Android builds, we will submit to both stores and close the project.
Project ID: 40383325
64 proposals
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64 freelancers are bidding on average ₹1,569,531 INR for this job

Hi there, As a Pro Flutter expert, I want to join your project, I know how to collaborate closely with product owners and internal teams to ensure the app aligns with business goals, and I am familiar with building marketplace-style platforms with user-centric design, responsive interfaces, and production-ready architecture that meets App Store and Google Play standards. I will work directly and dedicatedly on your project, focusing on clean, maintainable code, a consistent experience across devices, and a robust OTP system with resend logic, error handling, and basic fraud protection. From development to final deployment, I will ensure everything functions smoothly on the latest iOS and Android versions and passes all required checks. You will get complete source code, a fully integrated authentication module, proper documentation for setup and maintenance, and a clear handover session so your internal team can confidently manage future updates. Let’s have a quick call and align on your vision, timelines, and technical preferences so we can move forward efficiently. Thanks, Rahul
₹1,000,000 INR in 180 days
7.5
7.5

Hello there, I will deliver your social commerce app for iOS and Android — OTP authentication, product browsing, cart, checkout, and the social-driven features that differentiate it from a standard storefront. For the OTP module, I will implement a layered approach — rate-limiting per device fingerprint, exponential backoff on resend requests, and a silent SMS hash check on Android to auto-fill codes without user friction. On iOS, the AutoFill code suggestion will handle the same flow. This keeps fraud attempts low while keeping legitimate signups under 15 seconds from phone entry to logged-in state. I will use Flutter for a single codebase that meets both App Store and Google Play guidelines, with platform-specific adaptations where needed — haptics, navigation patterns, and notification handling. Ready to start whenever you are. Kamran
₹1,000,000 INR in 30 days
7.4
7.4

Hi there, I have read your project requirement. You need a complete mobile application for a social-driven e-commerce platform (similar to Amazon) with a strong focus on phone-number-based authentication using OTP. The app must support both iOS and Android with a consistent, polished experience, including secure OTP login, resend logic, fraud protection, and smooth onboarding. You also require complete source code, scalable backend integration (Firebase/Twilio), documentation, and a proper handover for future maintenance. We can build a robust, scalable, and user-friendly mobile app with secure authentication, clean UI/UX, and full compliance with App Store and Google Play guidelines. A few questions: ============== Do you want to use Firebase Auth, Twilio, or any specific OTP provider? Is the rest of the e-commerce system (product listing, cart, payment) already developed or part of this scope? Do you need additional security features like device binding or OTP rate limiting? Should we also handle App Store and Play Store deployment as part of delivery? Best Regards, Srashtasoft Team
₹1,750,000 INR in 45 days
7.0
7.0

With your aim to create a social commerce app, I'm confident that my extensive experience in the full-stack mobile development industry will meet all your requirements. Having built numerous Android and iOS apps, including e-commerce solutions, games, and social platforms, I am skilled at delivering high-quality code for both iOS and Android using different frameworks such as Flutter, React Native and Kotlin/Swift. Regarding registration flow, I am proficient in integrating OTP-based authentication using services like Firebase Auth or Twilio Verify. My deep understanding of basic accessibility checks and device responsiveness across popular device sizes will ensure optimal performance on the latest two major versions of both iOS and Android. Furthermore, with my commitment to providing a thorough handover session and detailed installation/configuration guides, I'll empower your internal team to independently maintain future versions. Your project will be efficiently managed from start to finish with stringent quality control measures for a smooth user experience—one that matches Amazon's famed reliability.
₹2,350,000 INR in 90 days
7.0
7.0

As CnELIndia, we excel at providing complete and top-notch mobile app development solutions that tick every box like the ones you've mentioned in your project description. We have a deep expertise in working with diverse cross-platform frameworks like Flutter and React Native, as well as in native app development using Kotlin/Swift. This experience ensures that we can provide the same polished feature set for both iOS and Android builds while adhering to Apple App Store and Google Play requirements. One of our notable strengths is constructing robust authentication systems such as the OTP system you need for your Social Commerce App. We've worked with Firebase Auth, Twilio Verify, and similar services to fortify backend security measures for different apps over the years, guaranteeing smooth registration flow and user experience. Moreover, it's worth mentioning that all our apps undergo rigorous testing on multiple device sizes to ensure full accessibility and responsiveness, as per your acceptance criteria. Also, we communicate proactively throughout the project journey ensuring you're updated continually, confident about the project's progress. Join us today for an engaging partnership where your vision meets relentless innovation—and ends in satisfying results!
₹1,750,000 INR in 55 days
7.0
7.0

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. 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 , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹1,000,000 INR in 40 days
6.6
6.6

Hi, I can build your mobile app using Flutter + Firebase Auth (or Twilio Verify) for reliable OTP-based authentication. I’ll implement secure login, resend logic, and basic fraud protection (rate limiting, device checks). Flow will be smooth with proper error handling and UX optimization. Code will be clean, scalable, and consistent across iOS and Android. TestFlight and Play-ready builds included with documentation. Ready to start immediately.
₹1,000,000 INR in 30 days
6.0
6.0

With my expertise in mobile app development and proficiency in React Native, I am confident that I can deliver a remarkable social-commerce application to you. My five-plus years of real-world experience in this field equip me with the necessary skills to handle all aspects of the project - from creating a smooth user registration flow with OTP authentication, to using scalable backend solutions like Firebase Auth or Twilio Verify for a secure system, and finally delivering a polished product with complete source codes for both iOS and Android platforms. I understand the value of clean, optimized, and maintainable code. I believe this will be critical in ensuring that your app operates seamlessly on all device sizes and passes basic accessibility checks. Moreover, my commitment to on-time delivery and clear communication ensures that you will be updated at every stage of the process. Not only do I want to build a fantastic mobile app for you, but also ensure you understand how it all works. My willingness to conduct a short hand-over session so that your internal team can maintain future versions further demonstrates my collaborative work ethic. So let's collaborate on this project and create something amazing together!
₹1,750,000 INR in 7 days
4.9
4.9

I understand you are building a large scale social commerce app similar to Amazon where the first critical layer is a smooth, secure OTP based authentication system that works flawlessly across iOS and Android. The focus is performance, scalability, and a polished user experience ready for store approval. I will build the app using Flutter for a single high quality codebase, integrate Firebase or Twilio OTP with fraud handling and retry logic, and ensure responsive UI across devices. I have experience in scalable app systems and will deliver production ready builds with clean architecture, documentation, and handover.
₹1,000,000 INR in 120 days
4.4
4.4

Using my decades of cross-functional development experience, I ensure seamless, end-to-end delivery of mobile applications. Firstly, I have deep expertise in the full cycle of Android and iOS application development which ensures your social-commerce app will meet all your desired functionalities and requirements. In addition to your preferred languages like Kotlin/Swift or Flutter, my skills include React Native which is a highly viable choice for cross-platform stacks, suiting this project's requirement perfectly. To elevate security and user experience, I integrate the OTP authentication module using reliable backends such as Firebase Auth and Twilio Verify. Additionally, my extensive knowledge in scalable backend infrastructures coupled with my understanding and experience in fraud prevention strategies complements the expectations as outlined in your project description. On top of all, I value communication and collaboration highly. Apart from delivering the codebase and installation guides as specified, I'll ensure a detailed handover session so that your team can efficiently maintain future versions of the app. With me on board, you'll not only get a technically sound product but also an amicable professional to help you execute this transformative project exactly in the way you envisage it!
₹1,750,000 INR in 120 days
4.2
4.2

Hello There, I hope you are doing well! I am a Senior Mobile App developer and this sounds like a strong foundation for a social commerce app. I’ve built mobile apps with OTP authentication, scalable backends, and cross-platform delivery, so I can handle this end-to-end. I’d recommend React Native + Firebase Auth (or Twilio Verify) for fast, secure OTP flow and easy scaling. ✱ I can deliver: => Clean phone + OTP auth flow (resend logic, edge cases, basic fraud checks) => Smooth onboarding UX across iOS & Android => Fully tested builds for TestFlight + Play Store => Well-structured code + setup guide + handover I focus on making authentication fast, reliable, and user-friendly, since that’s the first impression of your app. Available to start immediately. Thanks!
₹2,500,000 INR in 7 days
4.3
4.3

Hello Already have something live to show you I am professional mobile software engineer with skills including Web Design, PHP, Website Development, Content Writing, Elementor, HTML, WordPress and Website Design. Please send a message to discuss more about this project. Always happy to hear from you Thanks
₹1,750,000 INR in 7 days
3.9
3.9

Hi, I am a Flutter developer with 8 years of experience building scalable iOS and Android apps with secure authentication systems. I can develop your Amazon-like app with OTP login, resend logic, fraud protection, and smooth onboarding using Firebase Auth or Twilio integration. I focus on clean architecture, responsive UI, and production-ready builds that pass App Store and Play Store requirements. I can deliver full source code, working builds, documentation, and support TestFlight/Play Store submission with handover to your team.
₹1,750,000 INR in 7 days
3.8
3.8

Hello! Based on your project description, you are looking to develop a social commerce mobile application for iOS and Android with a strong focus on OTP based authentication, smooth onboarding, and a scalable backend that supports a polished and consistent experience across both platforms. I will focus on building a cross platform mobile application using Flutter or React Native with a secure and scalable backend such as Firebase or Node. The system will include OTP based registration and login with resend logic, session management, and basic fraud prevention mechanisms. I will ensure a seamless first time user experience with responsive UI, accessibility compliance, and consistent performance across the latest iOS and Android versions. The application will be structured for future expansion into full social commerce features while maintaining clean and maintainable code. I specialize in mobile application development with 7 plus years of experience and have done similar work in past please open chat window I can share with you. I will provide full source code, documentation, and support during deployment and store submission. Please contact us to discuss authentication flow details, backend preferences, and scaling requirements so we can define a clear development plan. Best regards, Nikita Gupta
₹1,000,000 INR in 65 days
3.2
3.2

Hi, I’m Karthik with 15+ years of experience building scalable mobile and eCommerce platforms across iOS and Android. Your social commerce app requirement is something my team at Resonite Tech can deliver end-to-end. We would recommend Flutter or React Native for faster delivery and consistent UI across both platforms, while keeping room for native modules if needed. We can build: * OTP-based phone authentication with Firebase Auth, Twilio Verify, or similar * Secure registration, login, resend OTP, forgot/reset flow * Fraud prevention measures like retry limits, device/session checks, and OTP throttling * Responsive, polished UI for both iOS and Android * Accessibility-friendly screens and optimized performance across common devices * Backend integration, API layer, push notifications, analytics, and scalable architecture Deliverables will include complete source code, store-ready builds, installation/configuration documentation, and a detailed handover session for your internal team. We follow production-grade practices with Git-based delivery, clean architecture, proper error handling, testing, and TestFlight/internal Android build support before App Store and Play Store submission. I’d be happy to discuss your planned features beyond authentication so we can define the fastest path to MVP and production launch. Warm Regards, Karthik B Resonite Tech
₹2,750,000 INR in 7 days
3.2
3.2

Hi, I will deliver the social commerce app on Flutter with Firebase Auth phone OTP, covering both iOS and Android from a single codebase. Handover includes source, config guide, and a working session with your team. Technical flag on OTP: Firebase Phone Auth is a frequent target for SMS pumping fraud, where bots trigger thousands of OTP sends to premium numbers and the app owner pays the Twilio bill. Defense is App Check with Play Integrity and DeviceCheck, reCAPTCHA Enterprise on the send endpoint, plus rate limits per phone and per IP. Skipping this has cost teams five-figure sums in a weekend. Resend uses exponential backoff, and accessibility passes Apple and Google automated audits before store submission. Questions: 1) What social features are in scope: feeds, follows, reviews, share-out, live commerce? 2) Any existing backend or starting fresh? I can share a Flutter e-commerce build from a prior engagement. Faizan
₹1,000,000 INR in 7 days
2.9
2.9

I understand you need a reliable, production ready social commerce app for iOS and Android with a seamless OTP-based login system. I will build a fast, scalable cross platform app using React Native (or Flutter) with a secure authentication flow powered by Firebase or Twilio, including resend logic and basic fraud protection. The app will be fully responsive, meet App Store and Play Store standards, and work smoothly across the latest devices. I will deliver clean source code, setup documentation, and provide a handover session for your team. My focus will be on performance, stability, and creating a strong foundation for future social commerce features.
₹1,750,000 INR in 20 days
2.1
2.1

Hi, This is Ijeoma from Manassas. I am a verified US-based mobile app developer and systems engineer, and I’ve reviewed your requirement for a social-driven e-commerce application similar to Amazon with a strong focus on scalability and smooth OTP-based onboarding. I would approach this by building a cross-platform mobile app using Flutter or React Native to ensure consistent iOS and Android feature parity. The core architecture will be designed around a secure backend integration (Firebase Auth or Twilio Verify) to handle phone number registration, OTP verification, resend logic, and basic fraud prevention. The app will include a clean, responsive UI optimized for both platforms, ensuring smooth navigation and accessibility across modern devices. I will also implement modular authentication services so your team can scale and extend features easily in the future. Deliverables include full source code, backend integration setup, deployment-ready builds for both App Store and Play Store, and clear documentation with a handover walkthrough session. Looking forward to hearing from you.
₹1,000,000 INR in 20 days
0.0
0.0

Hello, We are Resonite Technologies, with proven experience in cross-platform mobile apps, OTP authentication systems, Firebase/Twilio integrations, and scalable e-commerce platforms. We can build your social-commerce mobile app for both iOS and Android with a polished, consistent experience across platforms. Our recommended stack would be Flutter for faster cross-platform delivery, combined with Firebase Auth or Twilio Verify for secure OTP registration, resend handling, fraud prevention, and smooth onboarding. We can deliver: Full iOS and Android source code Phone-number + OTP authentication flow Login, registration, password reset, resend logic Firebase/Twilio integration with scalable backend support Responsive UI across common device sizes Accessibility-aware screens and polished navigation TestFlight and Android internal build support Setup guide, deployment documentation, and handover session Our team has experience building e-commerce, marketplace, and customer-facing mobile apps with secure authentication, notifications, payments, and scalable backend architecture. We focus on clean code, store-compliant builds, smooth user journeys, and long-term maintainability so your internal team can continue future development with ease. Warm Regards, Karthik B Resonite Technologies
₹2,450,000 INR in 7 days
0.0
0.0

My team at Multi-Concept India is not just another web development company with a limited range of skills. We are fluent in multiple programming languages including React Native and iOS development, making us a perfect fit for your project. We have hands-on experience in crafting sophisticated eCommerce ecosystems and believe that our multi-platform expertise can help deliver the same polished feature set you desire for both iOS and Android. What sets us apart is our holistic approach to digital solutions. We understand the paramount importance of user experience and security, ensuring a smooth login process for your customers via OTP registration without any errors or hiccups. Furthermore, my team has spent a significant amount of effort tailoring interfaces to multiple device sizes so that your app remains accessible and responsive across the board. With over 12 years in the industry, we boast a proven track record of delivering high quality, scalable and user-focused mobile applications. We will not only provide you with complete source codes for both builds but also adeptly integrate them with a scalable backend solution like Firebase Auth or Twilio Verify, ensuring future maintainability by simplifying the intricate installation and configuration process for your team. Together, let's build an app on par with the giants of the industry to reshape social-driven e-commerce!
₹1,000,000 INR in 7 days
0.0
0.0

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