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I’m building a mobile app that must launch on both iOS and Android from a single code-base. Beyond the usual screens and navigation, the first essential capability is reliable push notifications wired to a modest back-end, so users receive timely updates even when the app is closed. I’m looking for one developer who can own the whole stack: architect the database and APIs, craft a clean front-end UI, stitch everything together, deploy to the stores, and document the process so future updates are straightforward. Modern cross-platform frameworks (React Native, Flutter or similar) are welcome as long as the final binaries pass App Store and Google Play review without extra re-work. Deliverables: • Production-ready iOS and Android builds • Push notification service fully integrated and tested • Source code in a private repo with commit history • Brief deployment guide and environment setup notes Quality, security and smooth performance are more important than racing to the finish line. If you’ve shipped cross-platform apps before and enjoy taking projects from idea to store release, let’s talk timelines and milestones.
Project ID: 40450469
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200 freelancers are bidding on average $2,237 USD for this job

⭐️⭐️⭐️ Cross-Platform Mobile App with Push Notifications (iOS & Android) ⭐️⭐️⭐️ Hello, I checked JD and you want — a cross-platform mobile app built from a single codebase with full backend integration and reliable push notifications, along with deployment to both app stores — * Cross-platform app (React Native / Flutter) * Clean and modern UI/UX * Backend APIs & database architecture * Push notification integration (real-time & background) * Secure authentication & data handling * App Store & Google Play deployment Let’s chat… Thanks
$1,800 USD in 15 days
9.4
9.4

Hello, Please share complete details regarding the project and I will provide you a complete solution. i am mobile applications developer and i have more than 8 years of experience developing mobile apps. i have done more than 510+ projects either local or internet based. i am confident i will provide you quality work on time. Let's chat to connect
$2,250 USD in 20 days
8.9
8.9

With over a decade of experience in full-stack mobile app development, I understand your project goal of building a cross-platform mobile app that delivers reliable push notifications to users. My background in building high-complexity systems, such as scaling apps for over 1 million users, directly applies to the challenges of ensuring your app's performance and security. For strategic insight, I recommend implementing a robust push notification service using scalable technologies to ensure timely updates for users. In a past project, I successfully integrated push notifications into a mobile app serving a large user base, proving my ability to handle this level of complexity. I encourage you to reach out so we can discuss the roadmap for your project. Let's collaborate to craft a seamless mobile app that meets your requirements for quality, security, and performance.
$2,400 USD in 30 days
8.3
8.3

Hi - Elias here from Miami. The primary challenge in building a cross-platform mobile app lies in managing the nuances of both iOS and Android ecosystems while ensuring consistent performance and user experience. Many implementations fail due to inadequate handling of platform-specific features, leading to bugs and performance bottlenecks. Common pitfalls include overlooking state management and navigation issues, which can result in poor user experience. Additionally, reliance on web views instead of native components often leads to suboptimal performance and responsiveness. I propose leveraging React Native for its strong community support and ability to share code across platforms while maintaining a native feel. The implementation will follow this flow: User Input → API Calls → State Management → UI Rendering. This structure ensures a responsive experience and easier debugging. A critical decision is how to handle asynchronous data flows effectively, particularly in data-heavy applications. Early resolution of this will mitigate future scalability and reliability issues. What are the specific platform features you envision needing the most attention? Looking forward to discussing this further.
$2,500 USD in 10 days
8.3
8.3

A Warm Hello! We are readily available to start working on this project! We’d love to help bring your cross-platform mobile app from concept to successful App Store and Google Play release. Our team specializes in full-stack mobile application development using modern single code-base frameworks such as Flutter and React Native, allowing us to deliver high-performance iOS and Android apps efficiently without compromising quality or native user experience. What we will deliver: • Production-ready iOS and Android applications from a unified code-base • Clean, responsive, and scalable front-end UI/UX • Secure backend architecture with properly designed APIs and database structure • Reliable push notification integration (Firebase Cloud Messaging/APNs or equivalent) with background delivery support • Complete source code hosted in a private repository with structured commit history • Deployment assistance for both Apple App Store and Google Play Store submissions • Environment setup documentation and deployment guide for future maintenance and updates • Performance optimization, security best practices, and QA testing before release We’d be happy to discuss your app vision in more detail, define milestones, and recommend the most suitable technical approach based on your long-term goals. Looking forward to collaborating with you. Best regards, Ana
$3,000 USD in 50 days
9.0
9.0

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your mobile app project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham
$1,500 USD in 24 days
8.0
8.0

You're building a Full Stack Mobile App Developer where the hardest part is making external integrations and the API layer stay reliable as scope grows. I've handled similar builds involving Mobile App Development, iPhone, Android, PhoneGap, usually where the important part was translating the brief into a reliable working system. My approach would be to first audit the current pages for trust, hierarchy, navigation, and conversion friction, then provide prioritized fixes that can be applied without unnecessary rebuilds. For this project, I would focus especially on: - Page hierarchy, trust signals, navigation clarity, and visual consistency - Typography, spacing, color usage, and modern UI patterns - Practical redesign recommendations ranked by effort and impact If helpful, I can start with a short audit of the homepage and key trust issues before any redesign work. Best, Dr. Syafiq
$3,000 USD in 21 days
7.3
7.3

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
$1,500 USD in 35 days
6.6
6.6

Hi there, I specialize in developing cross-platform mobile apps using React Native and Flutter. With experience in architecting databases, APIs, and UI, I can seamlessly integrate push notifications for timely updates. My approach ensures clean code, smooth deployment, and easy future updates. Having delivered similar projects, I prioritize quality, security, and performance over speed. Let's discuss how I can bring your app from concept to store release seamlessly. Looking forward to collaborating on this exciting project. Best, Kausar & Team
$1,500 USD in 14 days
6.4
6.4

Hi, We’ve developed several cross-platform apps using React Native and Flutter, including a fully functional MVP for a startup that integrated with multiple third-party APIs and handled sensitive data. We also built a custom CI/CD pipeline to automate the app submission process, ensuring that the latest code was always available for production. With 15 years of experience as a full-stack developer, I’ve worked extensively with both front-end and back-end technologies. I’m equally comfortable with server management and DevOps tasks, which means you get a versatile developer instead of a specialist who may not be as proficient in other areas. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m eager to learn more about your exciting project. Best regards, Adil
$2,199.71 USD in 21 days
5.9
5.9

⭐⭐⭐⭐⭐ Build a Cross-Platform Mobile App for iOS and Android ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project details and see that you are looking for a developer to create a mobile app for both iOS and Android. Look no further; Zohaib is here to help you! My team has successfully completed over 50 similar projects for mobile applications. I will design a user-friendly app with reliable push notifications and a solid backend. This will ensure users receive timely updates, even when the app is closed. ➡️ Why Me? I can easily build your mobile app, as I have 5 years of experience in mobile app development, specializing in cross-platform solutions. My expertise includes React Native, Flutter, API integration, and UI/UX design. Additionally, I have a strong grip on database architecture and deployment processes, ensuring a smooth journey from development to the app stores. ➡️ Let's have a quick chat to discuss your project in detail and I can show you samples of my previous work. I'm excited to explore this opportunity with you! ➡️ Skills & Experience: ✅ React Native ✅ Flutter ✅ API Development ✅ Database Design ✅ Push Notifications ✅ UI/UX Design ✅ App Deployment ✅ Source Control ✅ Performance Optimization ✅ Testing & Debugging ✅ Cross-Platform Development ✅ Documentation Waiting for your response! Best Regards, Zohaib
$1,800 USD in 2 days
5.8
5.8

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I have experience developing cross-platform mobile apps using React Native and Flutter, where users received push notifications reliably even when the app was closed, ensuring seamless user engagement. From my experience, the most important part to successfully complete this project is setting up a robust backend API and push notification service that integrates smoothly with both iOS and Android. Approach: ⭕ Architect a scalable database and secure APIs tailored for push notifications. ⭕ Develop a clean, responsive UI using React Native or Flutter. ⭕ Integrate and thoroughly test push notification services ensuring they work flawlessly when the app is closed. ⭕ Deploy production-ready builds to the Apple App Store and Google Play Store with proper compliance. ⭕ Provide comprehensive documentation including deployment guides and environment setup notes. ❓Could you please clarify if there is a preferred backend technology or hosting service you would like to use? I am confident I can deliver a high-quality, secure, and performant mobile app that meets all your requirements from concept to store release. Best regards, Nam
$2,500 USD in 15 days
5.2
5.2

With experience in developing cross-platform apps and expertise in React Native, I understand the need for a seamless mobile app launch on both iOS and Android, with reliable push notifications and a robust back-end. Could you share more details about the backend infrastructure requirements for optimal performance and scalability? Regards, Yogesh Kumar
$2,340 USD in 6 days
5.3
5.3

Hi there! I’m a full-time available React Native Developer with 6 years of expertise in creating mobile applications that work seamlessly on both iOS and Android platforms. I specialize in delivering high-quality, cross-platform apps that meet user needs and business goals. Technical Skills -React Native: Building efficient and scalable mobile applications with a single codebase. -JavaScript & TypeScript: Writing clean, maintainable, and type-safe code. -Cross-Platform Expertise: Proficient in developing apps for both iOS and Android platforms. -UI/UX Implementation: Transforming designs into intuitive and visually appealing interfaces. -State Management: Skilled in Redux, MobX, and Context API for managing complex app states. -API Integration: Experience in integrating RESTful APIs and GraphQL for dynamic app functionality. -Native Modules: Extending React Native capabilities with custom native modules when needed. -Testing & Debugging: Using tools like Jest, React Native Testing Library, and Expo for robust app performance. Whether you’re looking to create a brand-new mobile app or enhance an existing one, I’m here to help. Let’s collaborate to build a powerful, user-friendly app that works flawlessly on both iOS and Android platforms. Let’s create something incredible together! Regards, Nikita Gupta
$1,500 USD in 7 days
5.4
5.4

You’re clearly trying to avoid the usual “app works until notifications or store review break everything” situation, so I’d approach this by locking down the foundation first instead of rushing screens. I’d start with the API and notification flow early — device token management, background delivery handling, retry logic, and environment separation — because that’s usually where cross-platform apps become fragile after launch. For the app itself, I’d lean React Native with a clean native bridge setup where needed, especially to keep push behavior consistent between iOS and Android when the app is closed or resumed from a notification tap. Then I’d structure the backend around simple, maintainable APIs with clear auth and logging so future updates don’t turn into guesswork. I’ve handled similar end-to-end builds before, including production Shopify and API-heavy systems where stability mattered more than speed. I’ll also make sure the repo history and deployment notes are actually usable by the next developer, not just placeholder docs. Ready to get started once the notification use cases are finalized.
$2,000 USD in 10 days
4.9
4.9

Hi, The biggest challenge in cross-platform apps usually isn’t the UI — it’s building a stable backend, reliable push notifications, and getting both iOS and Android builds approved smoothly. That’s exactly what I can help you handle end-to-end. I can manage: • Cross-platform app development (Flutter/React Native) • Backend APIs & database architecture • Push notification integration and testing • App Store & Google Play deployment • Source code & deployment documentation I’ve worked on API-driven mobile apps involving Firebase notifications, authentication systems, admin dashboards, and production deployments for both Android and iOS. Suggested milestones: 1. UI/UX & Architecture 2. Core Development 3. Push Notification Integration 4. Testing & Optimization 5. Store Deployment Estimated timeline: 6–8 weeks depending on scope. A few quick questions: • Do you already have wireframes/designs? • Will notifications be transactional, promotional, or both? • Do you need an admin dashboard? I’m available to start immediately and would be happy to discuss the roadmap further. Regards, Abhishek
$2,250 USD in 7 days
5.5
5.5

Hello! I’m confident I’ve found the best approach to build your cross-platform mobile app with reliable push notifications and production-ready iOS and Android releases while keeping the code clean, secure, and maintainable. I will architect the back-end with a robust database and API layer to support push notifications, user data, and any future app features, ensuring scalability and security. I will develop a clean, responsive front-end UI using React Native (or Flutter if preferred), integrating navigation, screens, and user flows for a smooth, native-like experience across both platforms. I will implement push notifications end-to-end, including device registration, backend-triggered notifications, and proper handling when the app is closed or in the background, with testing across iOS and Android. I will handle store deployment, including App Store and Google Play preparation, compliance checks, and submission so the binaries pass review without rework. I will deliver full source code in a private repository with commit history, along with a concise deployment guide and environment setup instructions for future updates. Warm regards, Yulius Mayoru
$1,500 USD in 7 days
4.9
4.9

Hello, your plan to launch on both iOS and Android from a single code‑base is clear, especially your focus on push notifications tied to a lightweight backend. I’ve handled similar cross‑platform builds where I delivered unified binaries and a notification pipeline that stayed stable under varying load. I previously shipped a React Native app with FCM and APNs integration, where I built the API layer, set up the database schema, and ensured both stores approved the first submissions without rework. The main challenge here is ensuring the notification service remains reliable across both platforms when the app is backgrounded or killed, as the nuances between APNs, FCM, and OS‑level throttling can easily trip up a junior developer. I’ll define the data model, build secure REST endpoints, implement the mobile UI in either Flutter or React Native, integrate push tokens, and automate builds so releases are consistent. I’ll also document the environment setup and deployment steps clearly. Before starting, I need clarity on your preferred backend stack and whether you expect CI/CD for store submissions. I can deliver cleanly and predictably. Best regards, John allen.
$2,000 USD in 15 days
4.5
4.5

Hi, I am excited about your project to develop a full-stack mobile app with seamless iOS and Android deployment from a single codebase. Your focus on quality, security, and smooth performance perfectly aligns with my approach. With extensive experience in cross-platform development using both React Native and Flutter, I have successfully built apps featuring reliable push notifications integrated with robust back-ends. I will architect a scalable database and APIs, design an intuitive front-end UI, and ensure comprehensive integration of push notifications that work even when the app is closed. I will manage deployment to both app stores, handling all submission requirements to avoid rejection, and provide thorough documentation for easy future updates. Let’s discuss timelines and milestones so we can start planning your app’s journey to launch. Which push notification service or provider do you prefer for integration, or are you open to recommendations? Best regards,
$2,500 USD in 29 days
4.8
4.8

Hi, this is exactly the kind of end‑to‑end build I like to own—one codebase, solid backend, and a clean path to both stores. I’d use a modern cross‑platform framework like Flutter or React Native with a small but robust backend (for example Node/Firebase) to handle auth, data and a reliable push notification pipeline that works when the app is closed and across iOS/Android quirks. From there I’d design a simple, performant UI, wire it to the APIs, and set up proper environments, secure config and a private repo with clear commits so future work is easy to follow. Once we align on scope, I can outline milestones from architecture and notification setup through UI, testing, and App Store/Play Store submission, plus a concise deployment and environment guide so you’re not dependent on me for every update.
$2,000 USD in 7 days
4.6
4.6

Fort Washington, United States
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