Multi-Platform App Development

@shyamvijaywargiy

Hello , Nice to meet you! I will design and develop MULTI PLATFORM mobile application with web admin panel according to your requirement , ping me on chat so we can discuss this more. I am expert and 9 years experienced Android /iPhone app developer with backend work that you are looking for. I will provide you perfect product as you want so you would be happy with it. I am always ready to discuss about your project in detail as well as start from right now. The following are my services that i provide :- 1. Daily or Weekly update. 2. Clean and Robust code. 3. Responsible for communication for more than 15 to 20 hours each day. 4. Free Bug-Fix support for 1 year after completion. 5. Source code delivery. You can have a look at my profile by this link : https://www.freelancer.com/u/shyamvijaywargiy Let's contact me to discuss further details with me. Thanks Shyam

@Julian29

Hello, Multi-Platform App Development {{{ I HAVE CREATED SIMILAR APPS BEFORE AND I CAN SHOW YOU }}}} I have read your requirements carefully and fully understand the project scope. I am ready to start working in stages to ensure smooth progress. With over 10 years of experience in the required technologies and app development, I am confident in delivering a secure, multi-platform app with user authentication, biometric login, and two-factor verification. multi-platform app: Cross-Platform Support – iOS & Android deployment. User Authentication – Secure login and registration. Biometric Authentication – Face ID / Touch ID support. Two-Factor Verification – Enhanced account security. App Store Ready – Optimized for submission guidelines. Responsive UI/UX – Consistent experience across devices. Secure Data Storage – Encrypted local and cloud data. Push Notifications – User engagement and alerts. My approach begins with wireframes and UI/UX design to align with your expectations before moving to development. I will provide high-quality development and design with unlimited revisions until you are satisfied. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. WE WILL WORK WITH AGILE METHODOLOGY AND OFFER FULL ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. I eagerly await your positive response. Thanks.

@diektech

Hi, This is Elias from Miami. I checked your project description and understand you're looking to build a multi-platform app for iOS and Android that includes user authentication features. My team and I have developed similar mobile applications with robust security and user-friendly interfaces. For this project, I suggest using React Native for cross-platform compatibility, ensuring a seamless experience on both iOS and Android. We can implement a secure authentication system using Firebase or OAuth, which not only protects user data but also simplifies the sign-in process. Our modular architecture will allow for easy scalability and future feature enhancements. I’d be happy to go over the details and refine the best approach for your use case. Q1 – What specific features do you envision for the user authentication process? Q2 – Are there any third-party integrations you require for the app? Q3 – What is your target timeline for launching the app? Looking forward to hearing from you.

@corpmember29

HELLO, I HAVE CAREFULLY REVIEWED YOUR REQUIREMENT FOR MULTI-PLATFORM APP DEVELOPMENT WITH SECURE USER AUTHENTICATION. With 10+ years of experience in mobile app development (iOS & Android) and secure authentication systems, I can deliver a robust, scalable app ready for App Store and Play Store submission. APPROACH → I will develop the app using a cross-platform framework (Flutter/React Native) with a secure backend. Authentication will include email/login, biometric authentication (Face ID/Fingerprint), and two-factor verification (OTP/Authenticator apps). The system will follow best security practices and platform guidelines to ensure smooth approval on both stores. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. I ensure clean development, proper testing, and seamless deployment. I eagerly await your positive response. Thanks.

@Hammadhassan21

Hello The biggest risk in a multi platform authentication app is implementing secure login flows that work seamlessly across iOS and Android while meeting app store requirements. Weak handling of biometrics or two-factor verification can lead to security vulnerabilities or rejection during review. I have built cross-platform apps using Flutter and React Native with secure password and biometric authentication, two-factor verification, and proper encryption. I focus on consistent UX, secure storage, and smooth integration with app store guidelines to avoid submission issues. My approach ensures the authentication system is robust, scalable, and maintainable while keeping user experience frictionless. Do you want two factor verification implemented via SMS/email only or support authenticator apps as well? Best Regards Hammad Hassan

@mrresearcher99

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert

@sunainawbst

| Mobile Application | Flutter | React | iOS | Android | Web Application EXPERT Hi, Thanks for sharing this opportunity! I have read your project requirements. Over the past 10+ years, I've built a strong foundation in full-stack development, specializing in mobile app development using iOS, Android, React Native, and Flutter. My proficiency in these languages would allow me to do so with great efficiency. Due to NDAs, links aren’t public—but once you open the chat, I’ll share live demos and walkthroughs. Why you should move forward with me : More than a decade experience in mobile and web app development. Full-time availability as well as daily updates and open to long-term engagements NOTE: Please pan the budget for now, we will discuss over chat. Thanks & Regards, Srishti

@mobiappsoftware

Hello, I will develop your MOBILE APPLICATION for Android and IOS both platforms with Web admin panel. I am Tulsiram. I have 10 years of experience working as Native and Crossplatform mobile application developer. I am understood your requirements. I am glad if we are working together. If you interested then let's connect. I will provide you Daily updates ,source code after development completed, 1 Year maintenance Support in following Steps: I will available daily 10-12 hours in Working days for you. I will provide you regular updates according to which modules we will decided. After approval each module by you then i will provide your complete source code of your project and will shift on your Domain. Thanks

@ciss26

Hello, I hope you are doing well. I understand that you are looking to build a MOBILE APPLICATION and I would be happy to help. I have extensive experience in designing and developing Application and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.

@vivekrl43

Dear client, I can develop flutter based cross platform app with user authentication feature for android and ios, I have more than 9 years of exp in apps and web development.

@rbtech1984

Hi There!!! ★★★★ ( Build a secure multi-platform app with advanced authentication ) ★★★★ I’ve read and understood your project, and you need a multi-platform iOS and Android app with secure user authentication, including biometrics and two-factor verification, ready for App Store submission. The focus is on security, smooth login experience, and compliance with app store guidelines. Services mentioned here based on project details ⚜ User authentication system with email/password ⚜ Biometric login (Face ID / Touch ID / Android equivalents) ⚜ Two-factor verification setup ⚜ Secure data handling and encryption ⚜ iOS and Android app development ⚜ App Store and Play Store submission readiness ⚜ End-to-end testing for smooth user experience I have experience building secure mobile apps with React Native and Flutter, integrating biometrics, 2FA, and deploying apps to both stores. My approach is to implement strong authentication, test thoroughly, and ensure compliance for smooth approval. Happy to discuss next steps and start quickly. Warm Regards, Farhin B.

@Rajoriadares

Hello Client, Greeting of the day!!!! I read your job description. I can do this job with quality product. I am always available for your support. Thanks

@abhisaini0188

Hello, I appreciate your considering me for the development of your multi-platform app. With my 8+ years of full-stack experience and a proven track record of developing AI-powered applications, I am confident in my ability to deliver a top-notch product that caters to all your requirements. Throughout my career, I have successfully developed & integrated secure user authentication methods, including biometric authentication. My understanding of OpenAI, Hugging Face, and TensorFlow will ensure that your two-factor verification process is both efficient and robust. Moreover, my familiarity with the app store submission processes will ease the journey from development to deployment. Above all, I bring a business-focused approach to my projects. I strive to understand the unique challenges you face and work accordingly to provide solutions that automate workflows, aid decision-making, and deliver tangible business impact. My previous work includes AI-based invoice scanning systems, GPT-powered chatbots for customer support, and prediction engines for contest-based platforms. Let's leverage my skills for building an intelligent multi-platform app together! With Regards!

@gtssoftindia

Please initiate the chat so we can thoroughly discuss the requirements for the app, prior to the start. Happy to provide the final budget in chat. You will get a one-stop solution from my end as, throughout my 5+ years of freelancing Android/iOS App development career, I have created plenty of Mobile applications. I ensure to give the best quality app with good performance and responsive attractive UI and I have provided the clients with excellent results. I have expertise in Swift, React Native, Node.js, React.js, Angular, Laravel, and PHP. I am equipped to develop apps using these languages in all industries Pharmaceutical, Travel, Media & Entertainment etc. I also handle backend integrations for third-party collaborations on your systems. well versed in Mobile App Development in-App-Purchases, User Authentication, User Profile Creation, Location, Chat and Messaging, Map Integration, Payments, Social Media Account Integration, and many more to show. Have considerable knowledge of Android ANT SDK, BLE, Google Cast SDK, ads SDK, offerwall SDK and Titanium. I use libraries such as Sherlock Action Bar, OpenGL, Media Framework, and WebKit to build IoT integration app solutions. I am always interested in making long term professional relationships with my clients to ensure that every project becomes successful. So, if you hire me, I can assure you that you will not regret your decision. Best Regards Tejash J.

@Fawadkaleem

As an experienced mobile app developer, specializing in both iOS and Android platforms, I offer a unique blend of skills that make me an ideal fit for your multi-platform app development project. With a strong background in crafting secure user authentication features, including biometric authentication and two-factor verification, your users' data will remain protected. Furthermore, my familiarity with the app store submission processes means that not only will I develop the app to meet your requirements, but I'll also ensure it's ready for seamless submission and compliance. You can check out my work on IVI Cryptos, Victoria UAE Real Estate Property, Gifting Tracker, ExploreDen and Azkar e Quran apps to get a clear sense of the clean code and scalable architecture that underpin my work. Finally, my affinity for turning ideas into functional realities aligns perfectly with your vision for the app. Beyond the necessary skills,I bring creativity to the table; as proficient Unity Developer, I could incorporate interactive gamification or immersive 3D elements into your app - distinguishing it from standard ones. Partner with me today and let's create something amazing!

@kishanbwts

Building a secure multi-platform app with biometric and two-factor authentication is a common challenge I’ve handled before. For a recent client, I developed an iOS and Android app that used Face ID and fingerprint login along with SMS-based two-factor authentication, all linked to a custom backend for user management. To ensure smooth app store submission, I follow the latest guidelines from Apple and Google, so your app won’t hit common pitfalls around privacy and permissions. Do you have a preferred backend setup, or should I recommend one that pairs well with the authentication system? Also, do you want the two-factor verification integrated via SMS, email, or an authenticator app? I can quickly build the authentication flows and prepare the app packages for both stores, making sure everything works securely and reliably under real-world conditions. Ready to start as soon as you are.

@mahig47

Hello! As per your project post, you’re looking to build a multi platform mobile app for iOS and Android with strong user authentication and store ready delivery. The goal is to create a secure, production ready application that includes standard login, biometric authentication, and two factor verification while ensuring the app is properly prepared for App Store and Play Store submission. My focus will be on delivering a secure cross platform app featuring: user registration and login, biometric authentication support, two factor verification flow, secure session and token handling, and store submission ready builds for iOS and Android. The platform will ensure a safe user experience, clean authentication flow, and a scalable base for adding core business features after the authentication layer is established. I specialize in Flutter, React Native, secure mobile authentication systems, biometric login integration, OTP and two factor flows, and production ready mobile app delivery, with focus on security, performance, maintainability, and smooth app store compliance. My focus will be on building this app with a clean architecture, reliable auth workflows, and a polished mobile experience that is ready for launch. Let’s connect to review the auth flow, preferred tech stack, and the best roadmap for building your multi platform app successfully. Best regards, Nikita Gupta.

@mughiraaa

Hello, I have reviewed the details of your project. i can develop the app using react native to support both ios and android with shared code for faster delivery. authentication will include secure login, two-factor verification, and biometric options using device-native apis. all flows will be tested for security and smooth operation across platforms. end-to-end testing will confirm account creation, login, two-factor verification, and biometric unlock work reliably. ios and android builds will be prepared and optimized for app store submission. Let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira

@Tanmoy236

Warm greetings! I’m an expert in developing secure, multi-platform mobile apps with over 9 years of experience in iOS and Android development, including user authentication and app store submissions. I build apps that are production-ready, secure, and compliant with platform guidelines. Here's how I can help: * Implement robust user authentication with email/password, two-factor verification, and biometric login * Ensure seamless cross-platform functionality for both iOS and Android * Prepare the app for smooth App Store and Google Play submission, meeting all guidelines * Apply best practices for security, data protection, and UX in authentication flows * Share examples of previous multi-platform apps with secure login features Could you clarify if the app requires any additional features beyond authentication, such as user profiles or data syncing?