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I’m ready to turn an functional front-end into a polished mobile application that launches on both iOS and Android at the same time. I need a developer who is comfortable with the full build cycle, from shaping the technical approach, through coding and testing, to guiding me during App Store and Google Play submission. It's a communications app for two parties that are working together. When they have a project, they will be able to message, call, and upload files all in one place. We are looking to launch our app as soon as possible and want someone who is passionate about building applications and has examples of previous work that they could share. Our front-end is already fully developed on Flutter. We would like our front-end to be polished and have a fully-functional back-end so we can process and record the data live from our app. Deliverables: • Production-ready iOS and Android builds • All source code in a private repository • Basic documentation for setup, environment, and release steps • Test results showing the app runs smoothly across common device sizes and OS versions Acceptance criteria will be straightforward: the app installs without errors, key screens behave exactly as outlined in the approved mock-ups, and it passes store review on both platforms. If this fits your skill set and schedule, let’s talk next steps. There is a potential for us maintaining contact and working together beyond this project for our future needs.
ID do Projeto: 39972914
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Ativo há 2 meses
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245 freelancers estão ofertando em média £1.207 GBP for esse trabalho

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have now earned 'Expertise' level in AI, ChatGpt and a couple of other AI platforms for App development and other Chatbot work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 14 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas
£1.100 GBP em 25 dias
9,7
9,7

Dear Client, I am excited about the opportunity to work on your iOS-Android Mobile App Development project. With expertise in full build cycles, I am well-equipped to shape the technical approach, code, test, and guide you through the submission process for both the App Store and Google Play. Your vision for a communications app catering to two collaborating parties aligns with my passion for building user-friendly applications. I have a robust portfolio showcasing my previous work that I would be happy to share with you. Having the front-end developed on Flutter, I am committed to polishing the interface and integrating a fully-functional back-end to ensure seamless data processing and recording capabilities within the app. I am dedicated to delivering production-ready iOS and Android builds, along with comprehensive documentation and smooth app performance across various devices and OS versions. If you are looking for a skilled developer who can bring your project to life and potentially collaborate on future endeavors, I am eager to discuss the next steps with you. Looking forward to the possibility of working together. Sincerely, https://www.freelancer.com/u/Microlent
£1.125 GBP em 60 dias
9,3
9,3

Hello , Nice to meet you! I will design and develop 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
£750 GBP em 25 dias
9,0
9,0

With over 7 years of experience in native and cross-platform mobile app development, I understand the importance of turning your functional front-end into a polished iOS and Android application efficiently. Your project requires a developer who can handle the full build cycle seamlessly, from technical shaping to App Store and Google Play submission. In the realm of communications apps for collaborative work, I have successfully delivered similar projects that involve messaging, calling, and file uploads in one cohesive platform. My portfolio showcases my passion for building applications that streamline processes and enhance user experiences. For your project, I will ensure the delivery of production-ready iOS and Android builds, along with all source code securely stored in a private repository. Additionally, I will provide basic documentation for setup and maintenance, along with comprehensive testing to guarantee smooth operation across various devices and OS versions. If my skill set aligns with your project requirements and timeline, I am eager to discuss next steps with you. Let's collaborate on bringing your vision to life and explore potential opportunities for future collaboration.
£1.200 GBP em 20 dias
8,0
8,0

WE HAVE DEVELOPED AND LAUNCHED MULTIPLE FLUTTER-BASED MOBILE APPS ON BOTH IOS AND ANDROID AND CAN PROVIDE LIVE EXAMPLES. We’ve carefully gone through your iOS-Android Mobile App Development requirements and fully understand your vision — a seamless communication platform for two collaborating parties that combines messaging, calling, and file sharing in one polished, production-ready application. With 8+ years of experience in Flutter, Firebase, real-time communication systems (WebRTC, Twilio), and full deployment cycles, we can take your existing front-end to a fully functional release-ready app. Our approach will ensure a stable back-end, real-time synchronization, and a clean submission process to both stores — all delivered with precision and clarity. WORKING FLOW (→) Review Existing Flutter Front-End → Design & Implement Secure Back-End (Real-Time Messaging + File Uploads) → Integrate Call Functionality & Live Notifications → Conduct Full QA & Device Compatibility Testing → Deploy to App Store & Play Store (with Documentation & Approval Assistance) → Provide Post-Launch Support + Code Handoff for Future Scalability Christina
£1.125 GBP em 7 dias
8,2
8,2

Hello Sir, I’ve gone through your requirements carefully and I’m confident I can deliver your communication app as a fully functional, production-ready solution for both iOS and Android. With strong expertise in Flutter and Laravel/Firebase backend integration, I’ll ensure seamless real-time messaging, calling, and file-sharing features. I will handle backend API setup, database structuring, and app polishing for a smooth and responsive user experience. My focus will be on performance, clean architecture, and a flawless deployment process including App Store and Play Store submissions. I’ll also provide full source code, setup documentation, and testing reports to ensure stability across all devices. I’m excited to collaborate long-term and support your future development needs. Regards, Harsh Thoriya
£1.500 GBP em 7 dias
8,3
8,3

As a team, we have the perfect fusion of experience and passion to turn your fully developed Flutter front-end into a seamlessly functional iOS and Android mobile app. With over 8 years in website design, application development, and software engineering, our competency in shaping technical approaches, coding, testing, and launching is unbeatable. Our forte doesn't just lie in building apps; it's in managing the full lifecycle, which includes app store and Google Play submission. We understand the urgency to launch your app. That's why we offer high-quality deliverables within agreed-upon timelines without compromising on quality. Your satisfaction is paramount to us; hence we assure unlimited design revisions until you're completely satisfied. Having successfully completed more than 500 projects with 100% client satisfaction records, you can trust us for premium workmanship. Moreover, beyond this project, we envision a long-term partnership as we value cultivating and nurturing relationships with our clients. This potentially extends to future app maintenance and development requirements. Choose us not only for our proven track record but also for our ability to offer round-the-clock support at competitive pricing without diluting quality standards. Comfortable with the US and UK time zones, availability won’t be an issue during crucial project phases. We look forward to joining hands with you!
£750 GBP em 1 dia
7,5
7,5

Hi — Elias from Miami. I’ve read your project brief and love the concept — a Flutter-based communications app for two-party collaboration with messaging, calling, and file uploads. I specialize in full-stack Flutter apps and can take your functional front-end and turn it into a polished, production-ready iOS and Android application, handling everything from backend setup, live data processing, testing, and guiding you through App Store and Google Play submissions. Deliverables will include production builds, private repository with all source code, documentation for setup and releases, and test results showing smooth performance across devices. I’ll ensure your app meets your acceptance criteria, including mock-up fidelity and store approval. A few clarifying questions: Q1: Do you have a preferred backend stack (Firebase, Node.js, Django, etc.) or are you open to recommendations for scalability and real-time messaging? Q2: For voice/video calls, should we integrate WebRTC, Twilio, or another provider? Q3: Any specific security or compliance requirements for the messaging/file uploads (encryption, GDPR, HIPAA, etc.)? Q4: Do you anticipate multi-language support or push notifications for future updates? Looking forward to helping you bring this app to live on both platforms quickly and reliably. Regards, Elias
£1.125 GBP em 7 dias
7,2
7,2

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
£750 GBP em 7 dias
6,9
6,9

Hello, I’ll develop your iOS and Android mobile app with a smooth, scalable, and user centric architecture that ensures excellent performance across both platforms. The app will feature a clean UI, optimized navigation, and secure API integrations for data synchronization. I’ll also make sure it adheres to App Store and Play Store standards for seamless deployment and future updates. Send me a message and we can go over your app’s core functionality, preferred tech stack, and timeline expectations. Best regards, Kamran
£1.125 GBP em 7 dias
7,2
7,2

I have extensive experience in Mobile App Development, iPhone, Android, iOS Development, and React Native, making me a perfect fit for the iOS-Android Mobile App Development project. I am confident in my ability to deliver production-ready builds that meet your requirements. I am open to discussing the budget further once we delve into the full project scope, ensuring it aligns with your needs. I am eager to kick off this project and showcase my skills. Please review my 15-year-old profile to see my past work. Let's connect to discuss the project details further.
£1.050 GBP em 21 dias
6,9
6,9

can deliver your Flutter-based communications app with a polished front-end, secure real-time backend, and full deployment to iOS and Android stores. I’ll handle integration, testing, and store submission smoothly.
£750 GBP em 7 dias
6,8
6,8

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
£750 GBP em 35 dias
6,6
6,6

Hello James M. Hope you are doing well! This is Efan , I checked your project detail carefully. I am pretty much experienced with iPhone, React Native, Android, iOS Development, Android App Development, Flutter and Mobile App Development for over 8 years, I can update you shortly. Cheers Efan
£1.300 GBP em 30 dias
6,5
6,5

Hi, With a blended skill set matching your multifaceted app requirements, I am confident that I can execute this project confluently. Having previously built mobile applications using Flutter, iOS and Android platforms gives me a unique edge in ensuring that your app doesn’t only “work”, but radiates elegance and efficiency across operating systems. From successfully deploying CRM and ERP systems to web-based POS and custom websites, I have consistently delivered – a commitment I will bring to your project. Understanding the importance of robust back-ends for seamless app functionality, my proficiency in PHP (Laravel, CI, CakePHP, Yii), Node.js and Python/Django will ensure efficient processing of all data originating from your Flutter front-end. Additionally, proficiency with design tools like Figma and Photoshop ensures the final product is pleasing aesthetically as well as functionally. The spirit of collaboration echoed in your project is something I wholly endorse. Building a communication platform necessitates clear, concise communication throughout the development process which I promise to deliver. Thanks...
£1.500 GBP em 7 dias
6,2
6,2

As someone who has immersed themselves in mobile app development over the past decade, I can confidently say that your iOS-Android Mobile App is perfect which matches my skill set. My team and I have proficient knowledge in Android and iOS as well as expertise in Flutter. Our strength extends not only to developing production-ready apps but also to guiding clients through the launch process. Our experience with managing private repositories, documentation of setup, environment, and release steps, adds to our value proposition for you. We will ensure your app runs smoothly across a variety of device sizes and operating systems. The fact that you're looking for a long-term professional relationship resonates with me. We don't just finish projects; we foster partnerships. Your vision and our skill set are a powerful combination that could align now into the future. Let's talk next steps, it would be an honor to turn your vision into reality!
£1.325 GBP em 7 dias
6,2
6,2

Hello there Hope you are doing well as you are looking for a "Build a ANDROID AND IOS MOBILE APPLICATION " so will make the same as you want , I have already develop and Design the so many Application , - I will use latest technology to develop your Application - I will share daily update with you - I Will deliver your project within timeline - After project completion will share complete source code - I will provide 1 year support our develop work - I have 10+ year experience in Web & App development - I will make the 100% responsive design , fast loading , SEO friendly and all - I will provide you super admin panel there you can manage the whole thing Please initiate the chat so will discuss together and all Thanks & Regards Dheeraj K.
£750 GBP em 12 dias
7,0
7,0

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
£750 GBP em 60 dias
6,7
6,7

Hi there, ★★★ Mobile App Development / React Native / Android App Development Expert ★★★ 8+ Years of Experience ★★★ To complete this project, I will leverage my expertise in Flutter and mobile application development to transform the existing front-end into a fully polished mobile application for both iOS and Android. My approach will include: - Analyzing the current front-end to identify areas for enhancement. - Developing a robust back-end to handle messaging, calls, and file uploads seamlessly. - Conducting thorough testing to ensure smooth performance across devices and OS versions. - Preparing the app for submission to the App Store and Google Play, including necessary documentation. - Collaborating closely with you throughout the process to ensure alignment with your vision and requirements. I look forward to connecting at your convenience to ensure the project's success. Best Regards, TechPlus Team
£1.200 GBP em 30 dias
5,9
5,9

Hello There!!! ⚜⭐⭐⭐⭐⚜(( Turning your functional Flutter front-end into a polished, production-ready mobile app ))⚜⭐⭐⭐⭐⚜ You need a cross-platform mobile app for iOS and Android that enables messaging, calls, and file sharing between project collaborators. The front-end is ready in Flutter, and the goal is a fully functional back-end with live data processing, smooth performance, and store-ready builds. I bring extensive experience developing and launching Flutter apps, integrating back-end services, and guiding clients through App Store and Google Play submissions. I also ensure responsive design, seamless messaging flows, and robust file handling. Three key features I will deliver: 1. Production-ready Flutter app for iOS and Android with smooth messaging and file upload 2. Fully integrated back-end for live data recording and retrieval 3. Documentation and setup instructions to ensure easy maintenance and future updates I would love to discuss your technical approach and timeline to get your app launched quickly and reliably. Warm Regards, Farhin B.
£756 GBP em 15 dias
6,3
6,3

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