Mobile App Upgrade: UI/UX & Payment System

@infowider11

***** Mobile App Upgrade & Payment System Enhancement *** Hi, I’ve reviewed your requirements and can upgrade your existing mobile application with a modern UI/UX, improved payment architecture, dynamic city-based pricing, and a complete security/bug audit. Features: Payment Gateway, Fee Automation, Commission Logic, City Pricing, UI/UX Redesign, WhatsApp Integration, Supabase Integration, Bug Fixing, Security Audit, Performance Optimization, API Integration, Transaction Tracking. I’ll first audit the existing app and payment flow, then redesign the key screens, implement the new pricing and commission logic, connect WhatsApp with Supabase, and thoroughly test transactions, security, and overall app performance. Let’s Chat…. Thanks

@Microlent

Hello, I understand that you are seeking an experienced mobile app developer to enhance your existing application by upgrading the payment systems and redesigning the user interface. My expertise lies in mobile app development with a focus on UI/UX design and payment gateway integration. To address your requirements, I will first upgrade the payment gateway integration, ensuring seamless transactions and accurate fee calculations. Additionally, I will revamp the UI/UX design to create a more modern, intuitive, and visually appealing user experience. Furthermore, I will implement a dynamic city-based pricing system to cater to varying service prices based on specific locations. I will also enhance UI/UX elements to improve user interaction and satisfaction. For payment integration and automation, I will add a new gateway and automate fee calculations for efficient processing. Moreover, I will connect a WhatsApp account with your Supabase backend to streamline customer service operations and conduct a thorough audit to fix bugs and enhance security. I invite you to open a chat to discuss the technical approach and share initial UI/UX ideas. Sincerely, Rajesh

@rajat07me

The main risk in your app is that payment logic, fee distribution, and city-based pricing all affect each other, so if they are patched separately the app can easily end up charging the wrong amount or creating support issues later. I’d start by reviewing the current payment flow, pricing rules, and Supabase structure first, then map the upgrade so the UI refresh sits on top of stable backend logic instead of masking broken workflows. I’ve worked on app improvement projects where the real job was not just “adding a gateway” but cleaning up calculations, fixing edge-case bugs, and making the experience feel much smoother for users at checkout. The WhatsApp + backend connection part also needs to be handled carefully so customer-service automation does not create messy data or unreliable triggers inside Supabase. Do you already have a preferred new payment gateway, and is the app built in Flutter, React Native, or native iOS/Android? I can also include a quick audit list of the current bugs/security weak points before development starts so the upgrade scope is clearer.

@inventivedesigne

Hi, is the current app built with Flutter, React Native, or native Android/iOS, and which payment gateway are you currently using? I’ve reviewed the full scope and understand you need both functional and visual improvements, including city-based dynamic pricing, upgraded payment and commission logic, a complete UI/UX refresh, WhatsApp and Supabase integration, plus a security and bug audit. I can handle the payment gateway upgrade, automated fee distribution, city pricing logic, modern responsive UI, Supabase workflows, WhatsApp integration, and thorough testing to ensure the existing app remains stable. I’ll first audit the current codebase and payment flow, identify existing issues, then implement and test each improvement systematically. Best regards, Hafiz Anas

@ahmadayaz

I propose a plan to enhance your mobile app, focusing on upgrading payment systems, implementing dynamic pricing, and modernizing the UI/UX design. This includes optimizing payment gateway integration, automating fee calculations, and enhancing customer service through WhatsApp integration with Supabase. Bug fixing and security audits will also be conducted to ensure optimal performance and data protection. Your feedback on performance optimization, scalability, and timelines is welcome to tailor the plan to your needs. Let's collaborate to create a top-notch app that exceeds expectations.

@diektech

Hello, I'm Elias, a Miami-based senior software engineer with 20 years of experience in mobile app development. I see you're looking to upgrade your existing application, focusing on enhancing the UI/UX and integrating a payment system. Your main goal seems to be improving user engagement and streamlining transactions for a better overall experience. I've built similar systems before, emphasizing secure architecture, clean UX, and effective payment integration. My approach to your project would involve these phases: 1) Understand the current workflow and gather technical requirements. 2) Design an improved user experience and payment integration architecture. 3) Develop core features and implement the payment system. 4) Conduct thorough testing to ensure everything functions correctly. 5) Deploy the upgraded app and provide ongoing support. Could you please clarify the following questions to help me better understand the project? 1) What specific user feedback have you received regarding the current UI/UX? 2) Are there particular payment gateways you prefer for integration? 3) How do you envision handling user roles and permissions in the app? I've successfully completed similar projects under NDA, so while I can’t share links, I’d be happy to discuss the architecture and features. Additionally, I can ensure a scalable architecture that accommodates future enhancements as your app grows.

@shivmirthyusl

Hi As a reliable, experienced, and client-focused mobile app developer, I am confident I can handle the upgrade your application needs. Our proven track record in 483+ successful projects and 19+ years of industry experience have honed our skillsets in all aspects of app development including payment system modification and UI/UX redesign. By customizing your payment gateways and implementing dynamic pricing based on city, we'll create a seamless and efficient payment experience for your users. But our partnership doesn't end there. We understand that great user experience is crucial to app success. That's why we propose to give your existing UI/UX a complete overhaul to make it more modern, intuitive, and visually appealing. Our design team is well-versed in creating user-friendly interfaces, backed by our skills in Graphic Design and User Interface / IA. Apart from the upgrade you're looking for, we'll also enhance your app's security by auditing it for bugs and vulnerabilities. Moreover, we can connect your WhatsApp account directly with your Supabase backend to streamline customer service operations. Thanks, SBM

@sahildogra222

Hey, You are looking for Mobile App Upgrade: UI/UX & Payment System. "Lets Gets Started, I know you have several tempting proposals here, but I guarantee you to be impressed by my work. I have various skills in design, Illustration, Photoshop, Graphic Design, Logo Design and Illustrator. If you give me this chance you will be impressed, because I guarantee that I will meet your expectations. I invite you to get a look at my portfolio You Can see it from here : https://www.freelancer.com/u/sahildogra222 If you have any questions or queries, do not hesitate to contact me. I hope to start working with you. With regards! SAHIL

@conceptsview

Hi, I can help upgrade your existing mobile app with a modern UI/UX, new payment gateway, automated fee/commission calculations, and city-based dynamic pricing. I can also integrate WhatsApp with Supabase, fix existing bugs and glitches, improve performance, and review the app for security issues. I have experience with mobile app development, payment integrations, Supabase, APIs, and UI/UX improvements. I can work with your existing codebase and ensure the current functionality remains intact. I’m ready to review the project and get started.

@kabirchy

Hi there, I understand you need to upgrade your mobile app with enhanced UI/UX design and payment system integration. As an experienced mobile developer with expertise in both visual design and payment gateway implementation, I can deliver exactly what you're looking for. My approach includes: - Complete UI redesign focusing on user experience optimization - Seamless payment system integration with secure transaction processing - Cross-platform compatibility ensuring smooth performance - User-centered design research to enhance engagement - Clean, modern visual elements that align with current mobile design standards I'll work closely with you throughout the development process, ensuring all requirements are met while maintaining high-quality standards. My experience spans various mobile platforms and payment solutions, guaranteeing a robust final product. Best Regards, Khorshed Alam, RS Software

@A2Design

Hello, Your app upgrade needs a focused mix of mobile development, payment logic, UI/UX redesign, and backend integration. A2 Design can help modernize the interface, implement city-based pricing, add a new payment gateway, automate fee/commission distribution, connect WhatsApp workflows with Supabase, and audit the app for bugs and security issues. We have strong experience building marketplace and service platforms where payments, booking flows, dynamic pricing, and smooth UX are critical. For example, MadPaws is a scalable booking marketplace with sitter search, escrow payments, profiles, and filtering: madpaws.com.au. We also delivered Get Blys, a service-booking platform with secure payments and scheduling: getblys.com.au. Founded in 2006, A2 Design provides full-cycle web and mobile development, including React Native apps, backend integrations, testing, and ongoing support. We focus not only on clean implementation, but also on making business logic reliable and maintainable. Let’s connect to review your current app, payment flow, and Supabase setup, then define the fastest upgrade path.

@corpmember29

Hello, MOBILE APP UI/UX & PAYMENT SYSTEM DEVELOPER {{{ I HAVE CREATED SIMILAR BEFORE AND I CAN SHOW YOU }}} I have carefully reviewed your requirements for upgrading the existing mobile application. I have 11+ years of development experience and can work directly with the current codebase to improve the UI, payment workflow, pricing logic, integrations, security, and overall stability. I can implement dynamic city-based pricing, upgrade the payment gateway, automate fee/commission calculations and distribution, modernize the existing UI/UX, integrate WhatsApp with Supabase, and audit the application for bugs, glitches, and security issues. I will first review the existing architecture and payment flow before making changes to ensure the upgrade does not affect existing functionality. WE WILL WORK WITH AGILE METHODOLOGY AND PROVIDE TESTABLE BUILDS THROUGHOUT DEVELOPMENT. I WILL PROVIDE 2 YEARS FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. I eagerly await your positive response. Thanks

@sunainawbst

Mobile App Upgrade Hello I have read your project requirements, i can help you in upgrading your mobile app with a focus on enhancing the user experience and modifying the payment systems. With over a decade of industry experience in mobile app development, i have honed the skillset you require for this project. Throughout our 1500+ projects, we have demonstrated proficiency in integrating and customizing diverse payment gateways. Additionally, our strong background in UI/UX design ensures that we can revamp your app to be more visually appealing and user-friendly. I’ve successfully launched multiple production apps across Google Play and App Store, delivering secure, optimized, and user-friendly solutions. ⭐Due to NDAs, links aren’t public—but once you open the chat, I’ll share live demos and walkthroughs. I’d be happy to discuss your requirements and execution plan. Bid amount is a placeholder and can be discussed over chat. Thanks & Regards Ranjana

@Hammadhassan21

Hey, I’ve carefully reviewed your project, and I understand you need an existing mobile app upgraded across payments, pricing, UI/UX, integrations, and security. I can work within the current codebase while improving functionality without disrupting existing workflows. I’ll handle the new payment gateway and automated commission/fee calculations, implement city-based dynamic pricing, and redesign the UI for a cleaner, more intuitive experience. I’ll also integrate WhatsApp with Supabase, audit the existing app for bugs and vulnerabilities, and thoroughly test the updated payment and data flows. I have hands-on experience with similar mobile, payment, Supabase, and UI/UX projects and would be happy to share relevant examples. One quick question: what mobile framework and payment gateway are currently used in the app? Portfolio: https://www.freelancer.com/u/Hammadhassan21 Best Regards, Hammad Hassan

@SaturnCube

Hi I’ve reviewed the requirements and they make sense. However, I need clarification on a couple of points. Please reach out so we can discuss and take the next steps. Kundan

@rizwange4

Hi There I just read your project details regarding the Project: Mobile App Upgrade: UI/UX & Payment System Can we do a quick chat right now so that we can discuss the project briefly? I have 10 years of experience in PHP, WordPress, Woocommerce, Cake Php, Codeigniter, Magento, Shopify, Laravel, Adobe Photoshop, Adobe Illustrator, CorelDRAW, Bootstrap, HTML, CSS, Angular, Javascript, jQuery, and My SQL. I appreciate Muhammad Rizwan Atif

@ranjika08

If the app already works but feels outdated, the biggest mistake is redesigning it without checking how payments, user actions, and screen flow connect underneath. The better approach is to improve the interface and payment experience together so users get a smoother journey instead of a prettier app with new friction points. I’ve handled mobile design/development tasks where existing apps needed refinement rather than a rebuild, and those projects always come down to two things: preserving what already works and fixing the parts that cause drop-offs or confusion. Payment-related updates especially need to be done carefully because one small issue there affects trust immediately. I can also suggest a phased approach if you want to upgrade the core payment flow first and the rest after. Is this a native app or a cross-platform app, and are you looking for a visual refresh only or actual screen/feature changes too?

@point2solutions

Mobile App Upgrade – Payments, City Pricing & UI/UX I can help upgrade the existing app across payments, pricing, UI/UX, integrations, and security. Here's my approach: → Update the payment gateway, fee/commission calculations, and automated payouts. → Implement city-based pricing and redesign the key app screens. → Connect WhatsApp with Supabase and audit the existing code for bugs and security issues. → Test the complete flow and deliver the updated app with fixes. Flow City Selection → Service Pricing → Booking → Payment → Fee/Commission Distribution → Customer Support Question Which payment gateway and mobile framework are currently being used in the app? Let's connect... Thanks

@muskaannadaf

Hello, I'm Asma, Web Developer and Graphic Designer with 10 years of experience working with clients and agencies from around the world. Creative problem solver with a passion for creating visually appealing and user-friendly digital solutions. I love building luxurious brands and designing captivating visual identities. I've worked with clients in lifestyle, property, fashion, hospitality, and luxury sectors. 24/7 Support & Faster Response . #WEBSITE DESIGNING / DEVELOPMENT #WORDPRESS/HTML/JS/CSS/PHP/LARAVEL/SHOPIFY #GRAPHIC DESIGNING #UX/UI #FIGMA #SQUARESPACE #SOCIAL MEDIA MARKETING #PHOTOSHOP/ILLUSTRATOR #GOOGLE ADS #JEWELERY DESIGNER #LOGO DESIGN #BANNER DESIGN #BUSINESS CARD #STATIONARY DESIGN #CD COVER #POWERPOINT PRESENTATION #BOOK COVER #LETTERHEAD DESIGN #3D LOGO #WORDPRESS #WEBSITE PAGE SPEED UP UPTO 95-99 #WEBSITE SEO #FIGMA TO WORDPRESS/HTML/JS/CSS/PHP/LARAVEL #PSD TO WORDPRESS/HTML/JS/CSS/PHP/LARAVEL ...... ETC :)