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I’m ready to turn a concept for a simple yet effective productivity tool into a polished Android application. The core idea is straightforward: help users organise daily tasks quickly, stay focused, and track small wins without a steep learning curve or distracting extras. What I already have: • A rough wireframe that outlines the main screens (task list, focus timer, progress dashboard). • A short feature priority list. What I need from you: • Translate the wireframe into a clean, intuitive Android UI that feels fast on recent devices (API 24+). • Build the core logic for creating, editing, re-ordering and archiving tasks, plus a lightweight timer that can run in the background. • Local data persistence (Room or another robust solution) so users never lose their lists when offline. • Basic analytics hooks so I can track feature usage later. • An APK for testing and the full, well-commented source code in Git when we’re done. Acceptance criteria: 1. App installs and runs error-free on Android 7.0 through the latest public release. 2. No action in the main flow takes more than one second to respond on a mid-range device. 3. All UI elements match the supplied wireframe and adapt gracefully to portrait and landscape. 4. Tasks, timer state and completion stats must persist after a full device reboot. 5. Code passes review for clarity, modularity and adherence to Android best practices (Kotlin preferred, Java acceptable). If you have questions about any detail—data storage, UI behaviour, or architecture—let me know early so we can keep momentum steady (slow is okay, but clarity is key).
Project ID: 40411781
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115 freelancers are bidding on average $534 USD for this job

This looks like a great fit, I will build your productivity app in Kotlin — task management with drag-to-reorder, background focus timer using a foreground Service, and a progress dashboard — all matching your wireframe across portrait and landscape. For local persistence, I will use Room with a single database that stores tasks, timer state, and completion stats in related tables. This means everything survives reboots reliably, and later if you want cloud sync, the Room schema maps cleanly to a remote API without restructuring. Questions: 1) For the background timer, should it show a persistent notification with pause/resume controls, or just a silent countdown? 2) Which analytics provider do you prefer for the usage hooks — Firebase Analytics, or something lighter? Send me a message and we can go over the details. Best regards, Kamran
$280 USD in 10 days
8.5
8.5

✅ Android App Developer | Kotlin Productivity Apps, Offline Task Systems & Focus Timer Development ✅ I reviewed your requirement and this is a very practical app build — simple on the surface, but it still needs clean architecture, fast UI response, reliable offline storage, and background timer stability to feel polished for daily use. I have solid experience building lightweight utility and productivity style mobile apps with strong local persistence and smooth Android performance. For your app, I would build: • clean Kotlin-based Android architecture • fast task create/edit/reorder/archive flow • background focus timer service • Room database for full offline persistence • reboot-safe task and timer state recovery • analytics hooks for future usage tracking • responsive UI matching wireframe in portrait/landscape • tested APK + organized Git source code The goal will be to keep the app lightweight, distraction-free, and extremely fast in daily usage — exactly what productivity users expect. Estimated timeline: around 3–4 weeks for a polished first version. Happy to discuss wireframes and feature priority in detail. Thanks! Purnima
$750 USD in 20 days
8.0
8.0

With a solid 15 years of Java development expertise under my belt, I'm fully equipped and ready to help you bring your productivity app vision to life. Having successfully completed over 248 Android projects, gaining a formidable reputation and 4.9/5 rating on Freelancer, I am confident in my ability to meet your expectations. Versatility is our strength with extensive PHP experience complementing our mobile app development prowess. Our collaborative approach where we offer free consultations before hiring means that we can ensure our understanding of your needs is comprehensive from the start. As an agile and innovative team, we remain highly adaptable throughout the project to accommodate any changes or refinements you may need along the way. With a focus on long-term client satisfaction, we're delighted to offer unlimited revisions until you are absolutely satisfied. More than just delivering an elegant and intuitive interface from your wireframes, I am committed to building a scalable and robust solution for you. This includes seamless data persistence even when offline using industry-standard tools such as Room or others that best suit your requirements. The fact that you have chosen Kotlin as the primary language resonates perfectly with my expertise as I have been engineering solutions in Kotlin for some time now. Rest assured, I will ensure all code adheres to the best practices ensuring maximum performance and modularity.
$500 USD in 7 days
7.9
7.9

Hi, We’re Doomshell, and we’d love to turn your productivity app concept into a clean, fast, and reliable Android experience. Your clarity around wireframes, features, and acceptance criteria makes this a perfect build for a well-structured, high-performance app—focused on simplicity and speed. How we’ll approach it: • Convert your wireframes into a modern, intuitive UI (Material Design, smooth interactions) • Develop core task management (create, edit, reorder, archive) with <1s response time • Implement a background-safe focus timer (handles app minimization & device states) • Use Room DB for robust offline data persistence (tasks, stats, timer state) • Add lightweight analytics hooks (Firebase or similar, optional toggle) • Ensure full responsiveness (portrait + landscape) across API 24+ devices • Deliver APK + clean, well-documented Kotlin codebase via Git We prioritize modular architecture (MVVM/Clean), performance, and long-term maintainability, so your app is easy to scale later. Quick questions: Do you prefer a minimal offline-only app, or should we keep future cloud sync in mind during architecture? Any preference for an analytics tool (e.g., Firebase), or should we set up a flexible integration? We’re ready to start and keep communication clear at every step to maintain momentum
$730 USD in 5 days
7.5
7.5

Hi there, I have read your project requirement. You need a clean, high-performance Android productivity app with task management, a background focus timer, local data persistence, and a UI aligned with your wireframes, ensuring smooth performance and reliable offline functionality. We can build a fast, scalable app using Kotlin with modern Android architecture (MVVM + Room DB), ensuring responsive UI, background-safe timer logic, and well-structured, maintainable code. A few questions to better understand your requirement: ============================================ Should the focus timer support notifications/alerts when sessions complete? Do you want task categorization or tags in the first version? Should analytics use Firebase or a custom lightweight solution? Do you need cloud sync in future phases or keep it fully offline? Best Regards, Srashtasoft Team
$500 USD in 7 days
6.9
6.9

Hi I have a proven track record of creating exceptional Android applications that precisely match the client's needs, making us the perfect fit for your project. With our deep expertise in Kotlin, coupled with extensive experience in API integration and mobile app development, we assure you a seamless translation of your wireframe into a clean and intuitive UI, designed specifically for maximum productivity. I believe in turning your concepts into impactful reality. Thus, we assure you an apk for rigorous testing and full source code in Git upon completion. So let's join hands and build an Android productivity application that triumphs over all others by staying true to its core functionality while providing an engaging user experience to better organize tasks and achieve goals!
$250 USD in 7 days
6.5
6.5

Hello, I’d be glad to help turn your productivity app concept and wireframes into a clean and responsive Android experience. I can translate your layout into a smooth UI and build the core features like task handling, background timers, and solid offline storage. I focus on keeping interactions fast and reliable, and I can deliver clear, modular Kotlin code that aligns with your requirements and testing needs. Thanks, Teo
$300 USD in 3 days
6.5
6.5

As an experienced Java developer with a special knack for mobile app development, I am excited about the prospect of transforming your concept into a tangible Android productivity app. My proficiency with Kotlin, Java and Mobile App Development guarantees that I will maximize every resource your app requires. I have a robust skillset that extends to local databases, Location, Maps, Firebase (FCM), and Web APIs (both development and integration) which aligns perfectly with the elements you seek in your app. Not only do I prioritize understanding projects at a deeply functional level but also delivering on time. And my dedication to maintaining long-term client relationships will ensure that I'm available 24/7 to support any concerns or tweak as they arise. In terms of code quality, ensuring readability is something I hugely champion as this enhances future application performance and maintainability. In summary, choosing me for this project means choosing someone who understands the importance of meeting deadlines, maintaining clear communication throughout the process and delivering satisfying end results. Your project is my priority, so let's get started on creating an organized world for task management together!
$5,000 USD in 7 days
6.4
6.4

Your timer persistence requirement is the critical piece here - most productivity apps lose state on reboot because developers skip WorkManager integration. That causes users to lose focus sessions mid-cycle, which kills retention. Before I map the architecture, I need clarity on two things: What happens if a user starts a 25-minute focus timer, locks their phone for 3 hours, then reopens the app? Should the timer auto-complete and log the session, or pause and wait for manual restart? For your analytics hooks - are you planning to use Firebase Analytics, or do you need a custom event pipeline that keeps data local until you build a backend? This affects how I structure the repository pattern. Here's the technical approach: - KOTLIN + JETPACK COMPOSE: Build the UI with Material 3 components and state hoisting so screen rotations don't reset user input. This eliminates 90% of lifecycle bugs. - ROOM + COROUTINES: Implement a three-table schema (tasks, timer_sessions, daily_stats) with foreign key constraints so archiving a task doesn't orphan its completion history. All database writes happen on background threads to keep the UI under 16ms frame time. - WORKMANAGER + FOREGROUND SERVICE: Run the timer as a foreground service with a persistent notification, then use WorkManager to handle edge cases like force-stop or low memory kills. This ensures timer state survives reboot per your acceptance criteria. - REPOSITORY PATTERN: Abstract data access behind interfaces so you can swap Room for SQLite or add remote sync later without rewriting business logic. - UNIT TESTS + ESPRESSO: Write tests for task reordering logic and timer state transitions before building the UI. This catches race conditions that only appear on slower devices. I've built 8 productivity apps in the last 3 years, including one that scaled to 200K users with zero crashes related to background task handling. The biggest mistake I see is developers using SharedPreferences for complex state - that breaks when Android kills the process under memory pressure. Let's schedule a 20-minute call to walk through your wireframe and confirm the timer UX before I start the repository setup. I don't build features that haven't been stress-tested against real user behavior.
$450 USD in 10 days
6.6
6.6

Hello, I understand you need a clean, lightweight Android productivity app built from your existing wireframe, focused on fast task management, focus timing, and reliable offline persistence. I will translate your wireframe into a responsive, intuitive Kotlin-based Android UI designed for smooth performance on API 24+ devices. The core architecture will follow modern Android best practices (MVVM recommended), ensuring separation of UI, logic, and data layers for maintainability. The app will include full task management (create, edit, reorder, archive), a lightweight background-safe focus timer, and persistent local storage using Room database so all tasks and timer states survive app restarts and device reboots. I will also integrate basic analytics hooks (event tracking points only) so you can later plug into Firebase or another analytics system without refactoring. Deliverables include a fully functional APK for testing, complete well-commented Kotlin source code, and a clean project structure ready for scaling. I will ensure responsive UI behavior, offline reliability, and fast interaction performance across Android 7.0 to latest versions. Thanks, Asif
$750 USD in 5 days
6.4
6.4

As a Full Stack Developer and expert in Mobile App Development (including Android), I have more than 10 years of invaluable experience in building, scaling and refining digital solutions, exactly like the one you need. Not only do I possess extensive knowledge of Java and PHP – two foundational languages for Android development but my utilization of Kotlin in addition demonstrates my adaptability to foster best practices in Tailoring your Android App Solution. This isn't just about functionality for me- it's about creating an immersive user experience, which perfectly aligns with your vision. Considering the project's acceptance criteria and your need for a reliable partner who handles both creation and operations, It's safe to say when we collaborate you're not just getting an efficient App Developer, you're gaining a long term solutions partner who'll diligently execute the project from inception to perfection.I believe that if we operate together, we will be able to meet every expectation on time while ensuring that clarity is maintained throughout the process. Let’s not settle for just any productivity app; let's build a unique experience empowering users to make the most out of their routines !
$450 USD in 15 days
6.3
6.3

Hi There, I understand you need a clean Android productivity app that feels simple, fast, and focused, not overloaded with unnecessary features. I can turn your wireframe into a polished Kotlin-based Android app with task creation, editing, re-ordering, archiving, a lightweight background focus timer, progress dashboard, and local offline storage using Room so tasks, timer state, and stats persist even after reboot. I will also add basic analytics hooks, keep the code modular and well-commented, and provide the APK plus full source code through Git. The key focus will be speed, clean UI, reliable persistence, and smooth performance across Android 7.0 and newer devices. Do you want the focus timer to work like a simple countdown, or should it also support pause/resume sessions with saved history? Best regards, Waqas A.
$650 USD in 40 days
6.1
6.1

I can turn your wireframe into a smooth, no-frills Android app that helps users organize tasks and track progress without distractions. I’ve built similar productivity apps where quick task management and background timers were key, so I know how to keep interactions under one second and ensure everything stays saved even after reboots. For data persistence, Room is a solid choice to keep task lists reliable offline. To capture usage stats, a lightweight analytics solution can be added without slowing the app. Does the focus timer need to pause and resume exactly where it left off after reboot, or is a simple reset acceptable? Also, should the UI support tablets or just phones? I’ll deliver the APK for testing plus clear, modular Kotlin code that fits your wireframe and adapts well between portrait and landscape. Ready to start turning your concept into a smooth, user-friendly Android app.
$500 USD in 7 days
6.0
6.0

hi, i have reviewed the details of your project. i can turn your wireframe into a clean, fast and production ready android app with proper task management, focus timer, and offline persistence. i’ve worked on similar productivity and utility apps using kotlin, room database, and modular android architecture, so building this with smooth performance and clean structure is something i can handle confidently. i will implement the full core flow including task creation, editing, reordering, archiving, a lightweight background timer, and persistent local storage so nothing is lost even after reboot. i’ll also make sure the ui is responsive, matches your wireframe closely, and performs well on api 24+ devices. let’s have a quick meeting so i can review your wireframe and feature list and align everything before starting.
$500 USD in 7 days
5.7
5.7

Hi I can help you turn your wireframe into a clean, high-performance Android app that feels smooth in daily use and is built with a solid, maintainable structure. How I’ll Approach It • Translate your wireframes into a clean, intuitive UI (optimized for speed) • Build core task logic (create, edit, reorder, archive) with smooth interactions • Lightweight focus timer with reliable background handling • Local persistence using a robust solution (e.g., Room) to ensure no data loss • Basic analytics hooks for future insights Key Focus Fast response time, clean architecture, and reliable offline behavior I’ll ensure the app performs smoothly on mid-range devices, maintains state across restarts, and follows modern Android best practices with well-structured, readable code. Deliverables • Fully functional APK for testing • Clean, well-commented source code (Git) • App aligned with your wireframes and acceptance criteria I can review your wireframes and suggest small improvements to improve usability without adding complexity. Looking forward to your response. Best regards, Abhishek
$500 USD in 7 days
5.8
5.8

With a strong and diverse background in both mobile app development and UI/UX design, I, Ishan, bring the perfect mix of skills needed for your Android Productivity App. I have over a decade of experience developing robust Android applications that perform seamlessly on any device - from API 24 and beyond - promising fluid experiences even on mid-range devices. With a focus on modularity and adherence to the best practices outlined in the Android ecosystem, my codes are of the highest quality – performant, clear and easy to maintain - ensuring users can organize their daily tasks quicker with your app. One thing that sets me apart is my eye for detail. In addition to building your app based on provided wireframes, I'll ensure every single UI element is consistent across portrait and landscape modes. This guarantees a seamless user experience no matter how they choose to use your app. Additionally, as an expert in data persistence using Room or similar technology, you can rely on me to ensure no user data is lost even when offline or after a full device reboot.
$500 USD in 7 days
5.2
5.2

✋ Hi there. I can build your Android productivity app with task lists, a background timer, and offline data storage. ✔️ I have published three Kotlin productivity apps on Google Play, each using Room for local persistence and WorkManager for background timers. ✔️ I will code your wireframe into a clean XML layout with ViewModel and LiveData, implement task create/edit/reorder plus a timer that runs in background, store everything in Room, and add basic analytics hooks before delivering the APK and full source. Let’s chat so you can share your rough wireframe and feature priority list. Mykhaylo
$500 USD in 7 days
5.4
5.4

Hello, I'm Vishal Maharaj, with 20 years of experience in PHP, API, Android App Development, Java, Kotlin, Mobile App Development, UI/ User Interface. I have carefully reviewed your project requirements for developing an Android productivity app. To bring your concept to life, I plan to translate the wireframe into a clean, intuitive Android UI optimized for recent devices. I will focus on creating, editing, re-ordering, and archiving tasks, implementing a lightweight timer, ensuring local data persistence, integrating basic analytics, and delivering a well-commented source code in Git. I am committed to meeting the acceptance criteria outlined, ensuring the app's seamless functionality on various Android versions. If you have any questions or need further clarification, please initiate a chat. Cheers, Vishal Maharaj
$500 USD in 5 days
5.1
5.1

Hello, I see that you need the concept turned for the simple yet effective productivity tool into a polished Android application. I delivered a similar project last week with a 5-star review and would love to show that in private. Message me and let's talk more about your project and I will share my approach today. Cheers, Fahad.
$250 USD in 2 days
5.1
5.1

Hi, I would like to grab this opportunity and will work till you get 100% satisfied with my work. I just applied after read your job posting carefully and I believe that I am good fit to your project. I'm a serious bidder. I will satisfy you with my high skills! I am an expert which have 10+ years of experience on Mobile App Development, iPhone, User Interface / IA, PhoneGap, Mobile App Testing, Swift, Google Maps API, Web Development, iOS Development, Mobile Development I am looking forward to meet you to discuss the further detail about this project. Looking forward to hearing from you. Warm Regards
$500 USD in 7 days
5.3
5.3

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