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I need a complete mobile solution—a productivity-focused app that runs smoothly on both iOS and Android. I already have the core concept mapped out; what’s missing is the design, coding, and store-ready packaging. Here’s how I picture the workflow: • Discovery & wireframing: translate my notes into low-fidelity sketches, then polish them into Figma or Sketch mock-ups. • UI/UX design: create a clean, distraction-free interface that scales gracefully on different screen sizes. • Development: build the app natively (Swift + Kotlin) or with a solid cross-platform framework such as Flutter or React Native—whichever you feel delivers the best performance and maintainability. • Testing & iteration: unit tests, usability walkthroughs, and device lab checks to make sure features stay snappy and bug-free. • Store preparation: compile release builds, generate the required assets, and guide me through App Store and Google Play submission. Acceptance criteria – Feature set matches approved wireframes. – No critical or major bugs in TestFlight / internal testing. – App Store and Google Play listings accepted without compliance issues. If you can own the end-to-end process—from first sketch right through to launch—let’s talk timelines and milestones.
Project ID: 40666537
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177 freelancers are bidding on average $449 AUD for this job

Hello, Regarding your project, i would like to discuss the app features in detail to better understand your requirements. i am a mobile applications developer and i have more than 8 years of experience developing mobile applications with backend services. i have developed many Business Solutions from scratch to Stores ready applications. i have completed more than 550 projects. i have live sample apps for you. i am super confident i will provide you best quality software services on time and on budget. Let's chat to proceed.
$130 AUD in 10 days
8.9
8.9

Hello, Cross-Platform App Development Specialist {{{ I HAVE CREATED SIMILAR BEFORE AND I CAN SHOW YOU }}} I have carefully reviewed your requirements for a complete productivity app for both iOS and Android, including discovery, UI/UX design, development, testing, and store-ready delivery. I have 11+ years of development experience and can take the project from your initial concept through to production. I can first convert your notes into clear user flows and low-fidelity wireframes, then create polished Figma designs before starting development. For development, I can recommend Flutter or React Native based on the final feature set, providing a consistent experience across iOS and Android while keeping the codebase maintainable and scalable. I will implement the approved designs with responsive layouts, smooth navigation, clean architecture, and proper error handling. I will also handle functional testing, device testing, performance optimization, bug fixing, release builds, required store assets, and App Store/Google Play submission guidance. The final delivery will include the complete source code, Figma design files, tested iOS and Android builds, documentation, and deployment support. I can start immediately and provide regular progress updates throughout the project. I eagerly await your positive response. Thanks, Christina
$140 AUD in 10 days
8.4
8.4

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 productivity 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
$125 AUD in 12 days
8.0
8.0

Hi, I’d be happy to take your productivity app from concept to App Store and Google Play launch, handling the complete process from wireframes and UI/UX through development, testing, and store preparation. I’d recommend Flutter for this project to deliver consistent iOS/Android performance while keeping development and future maintenance efficient. I can create the Figma wireframes and polished UI, responsive screens, app architecture, APIs/backend if required, automated testing, device testing, release builds, and store assets/submission support. A few questions: - Do you already have a detailed feature list/user flows, or should I help structure them during discovery? - Will the app require a backend, login, payments, or third-party integrations? - Do you already have branding, or should I create the visual direction? I’m ready to review your concept and propose clear milestones and a realistic launch timeline.
$1,500 AUD in 35 days
7.6
7.6

Your productivity app needs a complete path from concept notes to store-ready iOS and Android releases, including wireframing, polished UI/UX, development, testing, and submission support. I can own that workflow end to end using React Native with a maintainable shared codebase, native modules where platform-specific behavior is needed, and a clear separation between screens, state, services, and API integrations. I’ll first convert your notes into low-fidelity user flows and Figma wireframes for approval, then create a clean, distraction-free interface that adapts across phone sizes. Development will follow the approved screens, with reusable components and responsive layouts. I’ll add unit tests, run usability walkthroughs, and verify builds across representative iOS and Android devices so there are no critical or major issues in TestFlight or internal testing. I’ll also prepare icons, screenshots, metadata, release builds, and provide guidance through both App Store and Google Play submission requirements. With 10+ years of experience, 249+ delivered projects, and strong React Native, Flutter, Swift, and Kotlin experience, I can move quickly while keeping the codebase maintainable. Are your core concept notes already organized into an MVP feature list, or should I define that with you during wireframing? Muhammad Saad
$225 AUD in 7 days
7.0
7.0

I am thrilled to propose a comprehensive mobile app solution that goes beyond mere development. Our team excels in translating concepts into polished designs through meticulous wireframing using Figma or Sketch. With a focus on exceptional user experience, we specialize in native (Swift + Kotlin) and cross-platform frameworks like Flutter or React Native. Our rigorous testing process ensures bug-free and efficient products ready for release on the App Store and Google Play. Let's align on timelines and milestones to achieve your project goals. Our end-to-end approach guarantees a successful partnership focused on trust, reliability, and shared success in turning your vision into reality.
$225 AUD in 5 days
7.1
7.1

Hi, I reviewed your cross-platform productivity app request: complete iOS and Android solution with design, coding, testing, and store-ready packaging. I’ll translate your mapped concept into low-fidelity sketches and polished Figma UI/ User Interface flows, then implement a smooth Flutter-based build or equivalent approach as needed for maintainability and performance. I’ll ensure the UI scales cleanly across screen sizes and aligns with the approved wireframes. I focus on snappy usability, thorough unit testing, device-lab checks, and clean release packaging to help pass TestFlight/internal testing and avoid App Store/Google Play compliance issues. Let’s discuss here now.
$150 AUD in 7 days
7.1
7.1

Your main requirement is an end-to-end productivity app, from wireframes and polished UI/UX through development, testing, and App Store/Google Play launch. With 9+ years of mobile and full-stack development experience, I recommend Flutter for a maintainable cross-platform codebase with strong iOS and Android performance. I’ll handle the complete process including Figma-based UI, responsive screens, development, testing, performance optimization, release builds, store assets, and submission support.
$140 AUD in 7 days
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
$140 AUD in 7 days
7.0
7.0

Understanding your need for a complete mobile solution, our team is ready to transform your core concept into a fully functional productivity app for both iOS and Android. We’ll ensure a smooth workflow from discovery to launch, focusing on your vision at every step. For the design phase, we’ll create low-fidelity sketches and refine them into polished mock-ups using Figma. Our development will leverage the best technology—be it Swift, Kotlin, Flutter, or React Native—ensuring optimal performance and maintainability. Also, communication, quality, and on-time delivery are priorities. If you'd like, I can also share similar work we've completed and discuss the best approach for your project. You pay for quality. We deliver it. Regards, JP
$150 AUD in 7 days
6.8
6.8

Hi there, I understand you need a cross-platform productivity app that works seamlessly on both iOS and Android. Based on your requirements, I can build this using React Native which offers excellent performance and code reusability across platforms. My approach includes creating an intuitive UI/UX design that follows modern productivity app standards, implementing core functionality with smooth navigation, and ensuring proper app store readiness with optimized assets and metadata. I'll focus on delivering a clean, responsive interface with efficient performance while maintaining consistent user experience across devices. The app will include all essential productivity features you've outlined, properly tested on both platforms before delivery. My development process emphasizes clear communication and iterative feedback to ensure the final product meets your exact specifications. Best Regards, Khorshed Alam, RS Software
$190 AUD in 12 days
6.7
6.7

Hi, It will be an honor for me to work with you. I have got 12 years of mobile application development experience (iOS, android and flutter). Lets discuss this in detail and get this started. Looking forward to hear from you.
$250 AUD in 7 days
6.9
6.9

Hi, We would love to own the end-to-end development of your cross-platform productivity app for iOS and Android. Our battle-tested, end-to-end methodology mirrors your exact lifecycle requirements to ensure a seamless launch: Phase 1: Discovery & Figma Prototyping Translate your core notes into low-fidelity wireframes, evolving them into clean, high-fidelity Figma mockups focused on a distraction-free UX. Finalize interactive prototypes for full approval before writing code. Phase 2: Performant Cross-Platform Build Architect the app using Flutter / React Native for a single, highly maintainable codebase with native-level performance. Build responsive UI components that adapt fluidly across all iOS and Android form factors. Phase 3: Rigorous QA & TestFlight/Internal Beta Run unit tests and device-lab checks across multiple physical devices to ensure zero critical bugs and snappy interactions. Deploy builds to TestFlight and Google Play Console Internal Testing for your hands-on validation. Phase 4: Store Submission & Compliance Generate all store assets, configure privacy/compliance items, and manage full submission to both stores. Timeline: 3 to 4 weeks. Looking forward to reviewing your concept notes and getting started!
$140 AUD in 15 days
7.0
7.0

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native and for web and backend on react js and node js, Python Django. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
$140 AUD in 2 days
6.6
6.6

Hello!! Your productivity app will be taken from the existing concept through wireframes, polished user experience, cross-platform development, thorough testing, and successful App Store and Google Play launch. * Do you already have the complete feature list and user flow? * Would you prefer Flutter or React Native for the first release? * Do you already have Apple and Google developer accounts? The process will cover discovery, Figma designs, responsive screens, clean application development, device testing, bug fixing, release builds, store assets, and submission support. Each milestone will be reviewed before moving forward so the final application matches the approved designs. Relevant productivity and cross-platform applications have been developed with a strong focus on smooth interactions and maintainable code. The goal is a polished product that feels simple, fast, and reliable from the first launch. Let us connect in chat to discuss the concept and milestones. Best regards Farhin B
$30 AUD in 7 days
6.8
6.8

Hi, I can take this from your existing concept through wireframes, UI/UX, development, testing and store-ready iOS/Android builds. I recommend Flutter rather than maintaining separate Swift and Kotlin codebases. It provides strong native performance while keeping the UI and business logic consistent across both platforms, which also makes future maintenance considerably simpler. I’d begin by reviewing your notes and converting the actual workflows into low-fidelity wireframes. Once approved, I’ll produce the polished UI and build directly against those agreed screens so design and development stay aligned rather than discovering UX problems at the end. The build will include responsive layouts, clean architecture, state management, validation/error handling, device testing and release configuration for TestFlight and Google Play internal testing. I can also prepare the required store assets/configuration and assist through submission. The exact feature scope should be confirmed from your existing notes before development begins, since the posting currently describes the development process but not the productivity features themselves.
$250 AUD in 14 days
6.1
6.1

Hi I can help turn your productivity app concept into a complete mobile product, from initial UX design through development, testing, and App Store/Google Play launch. I understand that you need an end-to-end partner who can transform ideas into a polished application. I can help create user flows, wireframes, high-fidelity Figma designs, and develop a smooth mobile experience for both iOS and Android. For development, I can recommend Flutter or React Native for efficient cross-platform delivery while maintaining strong performance and scalability. I can implement the approved designs, build reliable features, handle testing, optimize responsiveness across devices, and prepare production-ready builds. My process includes discovery, UI/UX planning, development, QA testing, release preparation, and store submission support. I focus on creating clean interfaces, maintainable code, and a stable user experience. I would like to review your feature requirements, target users, and preferred technology direction to define milestones and timeline. Best, Justin
$140 AUD in 7 days
6.3
6.3

Hi there, Hope you are doing well I’d be happy to take your productivity app from concept to a polished, store-ready product for both iOS and Android. I can handle the complete process—from wireframes and UI/UX through development, testing, deployment, and handover. Proposed Tech Stack Flutter + Dart for a single high-quality iOS/Android codebase Figma for wireframes, UI/UX and interactive prototypes REST API / Firebase / Supabase depending on your backend requirements Local storage for fast offline-capable productivity features where required Firebase Crashlytics & Analytics for monitoring and production stability Key Features & Deliverables Discovery and requirement clarification Low-fidelity wireframes and clickable Figma prototype Modern, distraction-free responsive UI Complete mobile app development for iOS and Android Secure authentication and user data management if required Productivity workflows and core functionality based on your approved specifications API/backend integration where needed Unit, integration and device testing Performance optimization and bug fixing TestFlight and Android internal testing builds App Store and Google Play release preparation Complete source code and project documentation Post-launch support for initial bug fixes Thanks & Regards Dheeraj K.
$150 AUD in 7 days
7.0
7.0

Hi, I can do this project quickly, I am good at flutter mobile app development, it is best solution for Cross-Platform Productivity App, I also full stack developer , please show full details requirement then I can give you best quote/ I can offer lowest price and best quality code, thanks! Looking forward working with you! Regards,
$1,999 AUD in 50 days
6.3
6.3

Greetings, I understand your need for a cross-platform productivity app that seamlessly operates on iOS and Android devices. The core concept is clear, and I am well-versed in translating ideas into polished designs and functional code. My expertise in Mobile App Development, UI/UX design, and experience with frameworks like Flutter and React Native align well with your project requirements. My approach involves structured discovery, meticulous UI/UX design, clean development, rigorous testing, and thorough preparation for store deployment. By following a milestone-based approach, I ensure transparency and quality throughout the project lifecycle. With a proven track record in delivering user-centric mobile solutions, I am confident in my ability to bring your vision to life. You can review my portfolio here: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ To better understand your priorities, could you share the main goal you aim to achieve with this productivity app? Let's discuss further in an open chat to finalize the project scope seamlessly. Best regards, Muhammad Anas Khan
$90 AUD in 4 days
5.8
5.8

Adelaide, Australia
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