Hybrid Flutter WebView App for Shopify Store (Custom Auth & Razorpay Integration)

@mariakhan73700

As a multi-skilled, experienced developer with extensive knowledge of Android, React Native, and Flutter, I firmly believe I'm the very person you need to turn your vision into reality. Previously, I've built various hybrid web applications utilizing WebView wrappers and JavaScript bridges for seamless API interactions. Specifically in line with this project, I have implemented Razorpay UPI Intent without any glitches. Thanks to my proficiency with payment gateway integrations, and troubleshooting WebView issues, you can have the peace of mind that your app will perform flawlessly. Furthermore, my aptitude for mobile development coupled with my knack for creative problem-solving make me confident I can tackle the obstacles you've outlined in integrating OTPless (WhatsApp) authentication and transferring WhatsApp login states to Shopify sessions. Delivering work that is high-quality, scalable and user-friendly has been the cornerstone of my career. With this project being my top priority, rest assured that the final product will include a custom vsplash screen,native loading indicators'Pull-to-Refresh'xadherence:'to ensure an'in-app environment that feels familiar to every user while linking seamlessly to external apps for payment endpoints. Finally,integrating Firebase Cloud Messaging for marketing and order updates is no stranger to me. Let's discuss further how we can best incorporate it into your unique business model.

@s9iper1

Hello, I can build your Flutter WebView app for Shopify with a smooth, native feel—custom splash, loader, pull-to-refresh, and JS bridge. I have experience handling Razorpay UPI Intent (GPay, PhonePe, Paytm) in WebView apps, ensuring redirects work without breaking the flow. I’ll implement OTPless WhatsApp login (session bridge to Shopify), FCM push notifications, and optimize performance (User-Agent, large collections). You’ll get clean source code, configured environments, and Play Store-ready APK/AAB. Ready to start..

@GameOfWords

With my extensive experience in mobile app development, particularly in Android using frameworks like Flutter or React Native, a project like creating a hybrid WebView App for your Shopify-based bookstore falls well within my wheelhouse. I can assure you that I possess the necessary technical skills, such as integrating Razorpay Standard SDK and Firebase Cloud Messaging (FCM), which are core to your requirements. What sets me apart is my approach of aligning every project with the client's goals. I understand the criticality of your specialized function in Indian e-commerce and will ensure seamless OTPless (WhatsApp) authentication - bridging it back to the Shopify session. Quality, clarity, performance, and timely delivery are my guiding principles for every project. I will not only deliver the source code, configured Firebase and OTPless environments, signed APK and App Bundle (AAB) but more importantly, an app-specific to your business needs that ensures a native experience wrapped around the Shopify store. Let us turn your vision into an exceptional digital product!

@Sohailzk

Hello, I read your requirements and i have expertise in razorpay UPI experience, I will build the app for the website you have. Pls dm me to discuss further. Thanks

@ashinnd84

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

@MQamar123

I'm Muhammad, a highly versatile and experienced developer with a knack for solving complex problems. Having worked on numerous mobile app projects involving WebView (including Razorpay UPI Intent compatibility), I'm confident in my ability to deliver the hybrid Flutter Android app and meet all your requirements. Moreover, leveraging over 7 years of programming expertise, I bring extensive knowledge of diverse stacks like Node.js, React.js, React Native (and of course Flutter) underpinned by a strong background in Javascript which makes me an ideal candidate for this project. I've also worked on integrating various payment systems like Razorpay and consistently provide efficient solutions that ensure seamless user experience. Overall, my proficiency extends from front-end JavaScript injection to scalability optimizations at the backend; from UI/UX design using Flutter to effectively utilizing APIs like Firebase Cloud Messaging. Let's establish clear communication channels, align our visions and turn this project into a success!

@Ak230598

I can make webview app for your shopify store. I am building it in flutter. I have 6+ years of experience in this field. Let's connect and discuss more about your requirements. Thank you.

@letswork92

Hello, I understand you’re facing challenges with custom authentication and payment integration for your Shopify bookstore app. Creating a seamless experience that wraps your existing store in a native Android application while addressing these hurdles is crucial. With over 12 years of experience in mobile app development, particularly with Flutter, I can build a high-performance hybrid app tailored to your needs. I have successfully implemented Razorpay's UPI Intent solutions in previous WebView projects, ensuring smooth transitions to payment gateways without disruptions. Additionally, I can integrate OTPless (WhatsApp Login) for secure authentication and utilize Firebase Cloud Messaging for effective push notifications. My approach will ensure the app feels native, complete with custom splash screens and responsive design features. Could you share more about the specific JavaScript events you need handled from your Shopify theme? Looking forward to collaborating on this exciting project! Best regards, [Your Name]

@GobindSawarn

As a seasoned Flutter developer with an extensive background in app development, I have not only the skills but also the experience to undertake your project. From custom admin panels to full business platforms, my projects have always been built with long-term maintainability and performance in mind. I understand your need for a high-performing Android app that feels native and integrates seamlessly with Shopify. One notable project I've handled that closely ties to your specific requirement is the integration of Razorpay UPI Intent in a WebView environment. Successfully solving similar hurdles in the Indian e-commerce landscape makes me confident I can do the same for your bookstore app. My work is characterized by clean code, future readiness and clear communication - aspects you specifically mentioned seeking in a freelancer. To summarize, I am offering more than just code; I am proposing a solution that focuses on your core challenges: custom authentication, payment gateway issues, JavaScript event handling, Push notifications and last but not least, solid performance. By choosing me as your developer, you'll be guaranteed an android application conversion of your current Shopify store that is highly functional and tailored perfectly to your unique needs. Let's discuss further and make this project a huge success!

@saiqasheikhwork5

As a tech-savvy developer with expertise in Flutter and 7+ years of experience in mobile app development, I believe I am well-suited to handle your project. Not only do I have the technical chops to architect and build a high-performance hybrid Flutter WebView app, but I come equipped with unique capabilities that can address several key requirements you've outlined. For instance, I can seamlessly integrate Razorpay (including solving the UPI Intent issue) and implement OTPless (WhatsApp login) as per your specific requirements. Over the years, I have developed myriad applications under diverse technical stacks including SaaS platforms, eCommerce systems and built real-time applications - all of which align closely with the overarching goals of simplifying user-flow and enhancing overall function that your project entails. In addition to meeting your technical requirements with finesse, my holistic approach towards app development encompasses elements such as UI/UX optimization for seamless user experience, end-to-end service provisioning for an effortless deployment on Play Store (or Apple App Store) and ongoing maintenance support ensuring post-launch success. Given that your project specifically demands seamless Razorpay UPI Intent integration in a WebView setup, my prior experience with similar challenges gives me an edge over others. By choosing me for this project you can be rest assured that you're not just hiring a freelancer but a meticulous and de

@waleeds05

**Hi there,** I can support your hybrid Flutter WebView app for Shopify Store with custom auth and Razorpay integration needs with full commitment, clear communication, and timely delivery. Whether it’s WebView setup, custom authentication, seamless Razorpay payment gateway integration, Shopify API connectivity, or performance optimization, I make sure everything is handled efficiently and professionally. You can expect high-quality app development, regular progress updates, and quick revisions whenever required. **Best Regards,** Waleed Saleem

@dishirajput7

As an experienced Full Stack Mobile Developer specializing in Android and Flutter, I am well-prepared to tackle the complexities of your project. For over 5+ years, I have been creating high-performing applications across various platforms, including Android, iOS, and the web. My extensive experience with JavaScript is a crucial asset for handling specific JavaScript events in your Shopify theme, enabling native Android features like share sheets or customized "Add to Cart" notifications. In terms of prior accomplishments crucial to your project, I have successfully dealt with Razorpay's UPI Intent issue in previous projects involving WebView. I understand the importance of a seamless payment process and have ensured full compatibility with Indian E-commerce platforms like PhonePe, GPay, and Paytm in these projects. Moreover, efficiency and security are my priorities; I am adept at writing clean yet scalable code that optimizes performance while maintaining robustness. My track record showcases more than 50 mobile applications created with a focus on real-world client projects so you can expect reliable solutions tailored precisely to your needs. Let us join forces to deliver an exceptional app for your Shopify store that enhances user experience, optimizes payment transactionsࣧ

@Hrolgar

Cookie injection is step one: the Flutter shell manages login natively, stores the token securely, and injects it as a header or cookie before the WebView loads. Skip that and every deep link drops the user back at the Shopify login screen. Three milestones: M1 (INR 3000, 3 days) covers native auth screens, secure token storage, and the WebView shell with cookie injection so the store opens already authenticated. M2 (INR 3500, 4 days) adds the JS bridge for cart and checkout event listeners, deep link routing, and back-navigation handling. M3 (INR 3000, 3 days) integrates Razorpay's native SDK triggered at the checkout event, plus a Play Store and App Store compliant build with the native login flow already in place. Razorpay goes native specifically because Shopify's WebView checkout tends to block or redirect payment flows depending on gateway config. Native handles it cleanly and both store review teams expect it. What auth setup does the Shopify store currently use, session tokens or the customer accounts API?

@arshkumar213

I will build your Flutter WebView app with native feel (splash, loader, pull-to-refresh), integrate OTPless WhatsApp auth with Shopify session bridging, and fix Razorpay UPI intent handling (GPay/PhonePe/Paytm) with proper external app redirects. I’ve handled Razorpay WebView flows before. Includes JS bridge, FCM, and Play Store-ready build.

@kanchansharma05

Hi, I’ve reviewed your project and I clearly understand the requirements, especially the challenges around WebView authentication and Razorpay UPI intent handling. I have experience building Flutter WebView-based apps with custom JavaScript bridges, external app redirections, and payment gateway integrations. I’m confident I can handle the OTPless (WhatsApp login) integration and properly sync it with the Shopify session. Regarding Razorpay — yes, I’m familiar with the UPI intent issue in WebView and know how to manage external app redirects (GPay, PhonePe, Paytm) without breaking the flow. I will ensure: • Smooth native-like experience (splash, loader, pull-to-refresh) • Proper handling of external URLs and payments • Stable JS bridge for your custom theme events • FCM push notifications setup • Optimized performance with correct user-agent handling I can deliver clean, well-structured code along with APK/AAB and full setup support. I’m ready to start immediately and would be happy to discuss your store logic in more detail. Best regards, Kanchan Sharma

@ViktorUmanskyi

I don't think you will read my bid with the ai - structured text, and I know you exhausted to read very AI detailed monolog to yours requirements, but let's just go into chat and speak about. I am ready for a call, and shortly: 3 years of commercial experience writing JavaScript backends, working heavily with React Native and the Shopify API. I build my data schemas in PostgreSQL and typically use Stripe for handling payloads, though I'm totally open to using other payment structures if that fits your architecture better. I am a real developer, and I'm ready for a quick call whenever you are. Let's connect and talk details.

@guptakishan805

Hi there! I’m an experienced Flutter developer ready to transform your Shopify bookstore into a high-performance hybrid app. I specialize in seamless WebView wrappers that feel truly native. I will implement a custom splash screen, smooth loading indicators, and "Pull-to-Refresh" to ensure a premium user experience. Key Deliverables: Custom Auth: Expertise in OTPless (WhatsApp Login) integration for a frictionless, passwordless sign-in. Payments: Robust Razorpay integration tailored for the Indian market. Shopify Sync: Deep understanding of Liquid themes to ensure your specialized collection logic renders perfectly. I’m excited to bridge the gap between your web store and a native Android experience. Let’s discuss your vision! Best Regards Kishan Gupta

@sakshigweb

Hello, A Flutter WebView wrapper that handles Razorpay UPI Intent correctly is one of the trickier Android builds — most implementations get stuck at the external app redirect. We've structured WebView URL override logic specifically to handle UPI deep links to PhonePe, GPay, and Paytm without breaking the payment flow. Here's our approach: - Flutter WebView wrapper — native splash screen, loading indicators, pull-to-refresh - OTPless WhatsApp Login — implemented and bridged back to Shopify session cleanly - Razorpay Standard SDK — UPI Intent handled via shouldOverrideUrlLoading, external payment apps launch correctly - JavaScript Bridge — Shopify theme events mapped to native Android share sheet and cart notifications - Firebase Cloud Messaging — push notifications for marketing and order updates - User-Agent spoofing — ensures app-specific collection view loads for 500+ product catalogue - Deliverables — source code, configured Firebase + OTPless environments, signed APK + AAB ready for Play Store Architecture will be structured to keep the WebView-native bridge clean and maintainable as your Shopify theme evolves. I'll personally verify UPI Intent flow works flawlessly across PhonePe, GPay, and Paytm before sign-off. Happy to align on budget once we've reviewed your current Shopify theme and OTPless setup together. Quick question — is OTPless already configured on your Shopify store, or will that setup be part of the scope? Looking forward to it.

@aaronrobs

⚡️ If seamless user experience matters, we deliver. ⚡️ Aaron Roberts here. Your project needs a Flutter WebView app that feels truly native while navigating complex Shopify custom auth and Razorpay UPI payment hurdles — exactly our expertise. Our team recently built a similar app with OTPless WhatsApp login bridging back to Shopify sessions and flawless Razorpay UPI intent handling, ensuring smooth external payment redirects and JavaScript bridging for native features. Could you share more about your current WhatsApp login backend? Also, any custom JS events you'd prioritize beyond Add to Cart? Let's chat—happy to offer a free consultation to align on your goals and timeline.