Urgent Mobile App Developer Needed to Fix OTP Country Code Issue (Flutter/Android/iOS)

@softsolution2000

I understand the urgency of fixing the OTP country code issue in your mobile app. My experience includes working with Twilio, Firebase, and backend API debugging. I have successfully completed similar projects in the past and can ensure the correct passing of country codes to the backend. Testing with international numbers on both Android and iOS is something I am confident in doing. Let's discuss the project scope and adjust the budget accordingly. My priority is to deliver quality work within your budget and timeline. Please review my profile for my extensive experience. I am ready to start working on the tasks immediately to show my commitment. Looking forward to discussing the details with you.

@ank26oct

Having worked in the mobile app development sphere for over 12 years, I possess a robust skillset that aligns perfectly with your project. My proficiency in Flutter, combined . with a practical understanding of OTP integrations such as Twilio and Firebase amongst others, make me an apt candidate to resolve your persistent OTP issue in a timely fashion. To further cement our collaboration, I'd like to showcase examples of similar projects where my expertise proved instrumental in rectifying intricate issues just like yours. Additionally, I'll provide you with an accurate time estimate and competitive costing based on an attentive evaluation of your required fixes. Rest assured, my dedication and efficient problem-solving skills will enable me to ensure the app functions impeccably for users from diverse countries. Let's work together to fix this issue, provide a seamless experience, and achieve ultimate client satisfaction!

@rsinfotechindia

Hi There, With over a decade of experience in the field, I believe I'm the ideal candidate for your Fix OTP Country Code Issue project. In addition to being well-versed in the core methods and frameworks you are searching for – namely Android Studio, Kotlin/Java, REST API integration – I assure you that my design background will help me create an app that is both functional and visually appealing. Thanks, Mohinder

@MQamar123

With over 7 years of experience under my belt in the field, I possess all the skills and knowledge necessary to swiftly fix the persistent OTP issue you've described in your project. My varied technical background includes proficiency in Flutter, React Native, and both Android and iOS development which you specifically seek in a freelancer. As an app developer, I’ve handled countless projects featuring OTP integrations (including the use of Twilio, Firebase, MSG91, WhatsApp API etc.) and collaborated with backend teams to resolve complex logic issues. Moreover, I have extensive experience in testing applications with international numbers to ensure they function optimally across borders. Bringing this expertise to your task, I guarantee a thorough analysis of your country code picker and phone input logic as well as rectifying the incorrect passage to backend or API. The comprehensive solution I provide will be tested extensively across devices before being delivered to you &$#8211; ensuring an error-free and future-proof system. Duration : 2 Days Ammount : $100

@nicolasalexandro

I can quickly diagnose and fix the OTP country code issue in your Flutter app across both Android and iOS. This kind of problem is usually tied to phone number formatting, API expectations, or platform-specific behavior, and I’m comfortable handling all three. I’ve worked on several production Flutter apps that rely on OTP-based authentication, including integrations with Firebase Auth, Twilio, and custom SMS gateways. I’m used to debugging edge cases like incorrect country prefix handling, regional formats, and inconsistent validation between platforms. My approach would be to reproduce the issue, inspect the request/response flow, correct the phone parsing/validation logic, and verify OTP delivery for multiple country codes. I’ll also add basic logging so similar issues are easier to catch in the future. I would love to chat more about your project! Regards

@nutankumarftp

I understand the frustration of a persistent OTP issue that crosses all geographical boundaries. Drawing from my 10+ years of experience, specializing in mobile app development and API integrations, I assure you a comprehensive resolution. My deep proficiency in Flutter ensures that the correction will be implemented correctly and effectively. To explain my relevant range of capabilities, I've worked extensively with OTP systems like Twilio, Firebase, MSG91, and WhatsApp API for various applications. For a recent project focused on similar phone number validation and country code implementation problems, I successfully delivered a robust solution within a strict time frame to avoid further delays in business processes. In addition to my technical expertise with APIs and platforms, my client-oriented mindset sets me apart. I deeply understand that this problem directly affects user experience which translates to bottom-line business growth. Hence, transparency, efficient communication, and timely project management are my key principles. Reliability and user-friendliness are written into my code ethics ensuring that the final result is clean, scalable, future-ready

@growwithgdp

✅ I’ll quickly debug and fix your **OTP country code issue**, ensuring the selected country code (not default +92) is correctly passed from UI → validation → backend/API, with proper handling across all regions. ✅ Experienced with **Firebase, Twilio, MSG91 + Flutter/React Native**, I’ll test multiple international numbers and edge cases. ✅ Fix delivered within **1 day** with clean patch, testing, and brief documentation.

@jigarkachariya78

Hello. I can quickly diagnose and fix your OTP issue by correcting the country code picker logic and ensuring the selected code is properly passed to your backend/API. I have hands-on experience with OTP systems using Twilio, Firebase, and custom APIs, including phone validation libraries and cross-platform apps (Flutter/React Native). I will trace the issue from UI input through API calls, fix the default +92 override, and test thoroughly with multiple international numbers on Android and iOS. You will receive clean, documented fixes and confirmation that OTP works correctly across all supported countries. I can start immediately and resolve this within 1 day. Thank you.

@flapjakc

⭐⭐⭐⭐⭐Hello. I have read your project proposal in details.⭐⭐⭐⭐⭐ I can do within 3-5 hours. I’ve fixed this exact OTP bug before in Flutter apps where the UI shows Iraq or Kuwait but the payload still ships +92 because the picker state, formatter, or API mapping falls back to a hardcoded default. I’ll trace the full path from country picker to controller, E. 164 normalization, request body, and backend handling, then patch the source of override using libphonenumber and request logging. After that I’ll test multiple international numbers on Android and iPhone, verify provider compatibility, prevent regressions, and deliver a stable fix with clear ownership. If helpful, I can review your current setup and show exactly how I’d approach your case before we start.

@ZeeshanXOfficial

As a highly skilled and experienced full-stack developer, I am more than capable of resolving your pressing OTP issue on your mobile application. With my proficiency in API development and solid background working with platforms such as Twilio, Firebase, and MSG91, I can thoroughly examine the country code picker and phone input logic to ensure users' desired OTP country codes are passed correctly to the backend or API. My experience with Flutter, React Native, Android and iOS will guarantee that this solution caters to all platforms seamlessly. Moreover, I understand the importance of a properly functioning OTP system for an international user base so I will devote significant time to testing with multiple international numbers to ensure it performs optimally across all countries. You'll also benefit from my comprehensive knowledge of phone number validation libraries as it means meticulous bug detection and eradication. My track record in backend API debugging and optimizing database2 helps me anticipate potential issues for a smooth development process. Over my career, I've built scalable, secure and high-performance applications- traits that would undoubtably be crucial for you at this moment. Give me the chance to lend my expertise to your project; let's get your mobile application fully functional.

@dmytrok83

Hello, As a seasoned full-stack developer specializing in Mobile Development (Android/iOS), I believe I have the right skill set to tackle your immediate OTP issue head-on. My expertise in Flutter, React Native, Android as well as backend API debugging can specifically address your concern of multiple international phone number processing. Understanding the complexity and urgency, I assure you timely and efficient resolution. Drawing from my extensive experience with various Communication APIs like Twilio, MSG91 and more, impactful projects similar to resolving OTP system issues are well within my wheelhouse. I am confident that my thorough checking and correction skills will successfully rectify your persistent country code issue. To strengthen our partnership, I offer complete transparency by sharing clear project estimates with a cost breakdown prior to commencing work. Additionally, your mention of Flutter's compatibility across Android and iPhone platforms is not overlooked either. Having delivered cross-platform solutions for various clients using successful implementation of Flutter allows me to ensure proper functionality on both Android and iOS's nitty-gritty detailed aspects. On top of that, my proficiency with phone number validation libraries ensures accurate input logic guaranteeing consistent correspondence with the backend or API. Being a detail-oriented worker, rest assures that no stone will be left unturned when t Thanks!

@vertechsolutions

Hi, I just finished a 5-star project solving exactly an OTP malfunction where the app forced a default country code instead of using the user's actual selection. Here is what I will do: Fully debug the country code picker and ensure it passes the selected value into the OTP API flow. Correct the phone-number formatting logic so each country code triggers the correct OTP route. Test OTP flow across multiple international numbers on both Android and iOS to ensure flawless functionality. 10 days free support after delivery Milestone-based payment Reply "YES" and I will share a similar sample within 1 hour. Best regards, Ribal Ali

@kevinl510

Hello, As an experienced full stack web and mobile app developer, specializing in Flutter, React Native, and the entire gamut of front-end development technologies, I'm confident I have the professional resources to resolve your persistent OTP issue. Over the past 5+ years, I've honed my skills in not just designing but optimizing and scaling applications across both web and mobile platforms which is exactly what your project demands. I have a solid understanding of OTP systems - having integrated solutions such as Twilio, Firebase, MSG91, and WhatsApp API for my previous clients. My experiences have equipped me to accurately debug backend APIs since that is a crucial aspect of ensuring smooth OTP functionality. To this end, I'm comfortable relying on my expertise with phone number validation libraries to ensure that the chosen country code is passed correctly to your backend or API. Beyond proficiency in OTP integrations, one of my biggest strengths is my commitment to stable communication. You'll find that I am reliable and deadline-driven, guaranteeing completion within a specified timeframe which simply adds to your project's urgency. Let's hit the ground running! Infuse my drive for solving problems with your need for an expedited solution, resulting in a project delivered beyond expectations. For a fast & efficient resolution to your OTP issue, let's connect today! Thanks!

@dishirajput7

Having accumulated over five years of experience and having developed 50+ mobile applications, I am well-versed in the art of troubleshooting and debugging. Rest assured that I can resolve your OTP issue rapidly, as I have a solid comprehension of Twilio, Firebase, MSG91, WhatsApp API, all significantly relevant to this project. My familiarity with Flutter and React Native paired with my knowledge of Kotlin, Java and Swift for Android and iOS development make me the ideal candidate to bring your app back to full operational capacity. Additionally, I am skilled in phone number validation libraries and comfortable tackling backend API debugging. Putting all these together makes me the most fitting choice to address the persistent OTP issue in your application. On top of that, my portfolio is filled with real-world client projects similar to yours that turned out successful. Opting for my services means choosing clean code, timely delivery, fast communication, and long-term support for any future improvements or projects. With this in mind, it's not just about a quick fix for us; it's about constructing something robust together. So let's begin this journey!

@ezrat28

Hello Mate!Greetings , Good morning! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in MERN, API Development, Analytics, Node.js, Frontend Development, Software Development, Web Development, MongoDB, JavaScript and Backend Development. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Looking forward to hearing from you soon

@SonnyDube

I am a perfect fit for your project focused on resolving the persistent OTP issue where the app defaults to +92 regardless of user selection. I will thoroughly audit and correct the country code picker and phone input logic to ensure the chosen code is accurately passed to the backend, guaranteeing seamless OTP functionality across all countries on both Android and iPhone. While I am new to Freelancer, I have strong experience and have delivered similar solutions integrating Twilio and Firebase OTP systems, with expertise in Flutter and React Native. I offer a free consultation to better understand your app’s specifics and provide the best technical approach. I would love to chat more about your project! Regards, Sonny Dube

@Sadiyasyeda24

Hello, I have read your project details and I get what you need. I am a skilled freelancer with 4 years of experience in JavaScript, Node.js, Software Development, Web Development, Backend Development, Frontend Development, API Development. Check my profile for portfolio and reviews. Let's connect in chat to discuss more. Best regards, Syeda Tahreem

@kwamenae2

Hi there, I can fix this OTP country code issue quickly and properly. The problem is usually in the phone input state, country picker binding, or the payload being sent to the backend, and I’ll trace the full flow to make sure the selected code is preserved correctly instead of always defaulting to +92. I have experience debugging OTP flows, API integrations, and mobile app input logic, so I’ll verify the picker, request formatting, backend handling, and multi-country testing to make sure Android and iPhone both behave correctly. I can start right away and focus on delivering a clean fix instead of a temporary patch. You’ll get a fully working OTP flow that sends the correct country code for every selected region, stable testing across international numbers, and a reliable login experience without the current signup blockage.

@andriii2

Hi, I see you need to fix an OTP issue where the app always sends +92 instead of the selected country code across Android and iOS. I’ve worked extensively on mobile apps using React Native and backend systems with Node.js and APIs, including OTP integrations with services like Twilio and Firebase. I’ve handled similar issues involving phone input validation, country pickers, and incorrect parameter passing between frontend and backend. I can quickly trace whether the issue comes from the UI picker, formatting logic, or API payload, then fix the data flow to ensure the correct country code is sent. I’ll also test with multiple international numbers and validate consistency across platforms. This should be resolved within 1–2 days with clean and reliable results. Could you confirm which OTP service and phone input library you are currently using so I can align the fix properly? Looking forward to working with you ?